19-1872; Rev 0; 1/01 NUAL KIT MA ATION U EET L H A S V E S DATA W O L L FO 1575MHz/1900MHz Variable-IP3 Low-Noise Amplifiers Features Low Noise Figure MAX2654: 1.5dB at 1575MHz MAX2655: 1.45dB at 1575MHz MAX2656: 1.9dB at 1960MHz The MAX2654 operates in the GPS frequency of 1575MHz with 15.1dB of gain, 1.5dB noise figure, and only consumes 5.8mA. The MAX2655 is designed with high-input IP3 to improve operation in cellular applications where the cellular power amplifier leaks into the GPS receiver. The MAX2656 is designed for PCS phone applications with 13.5dB of gain in high-gain mode and 0.8dB of gain in low-gain mode (selected by a logic control) and 1.9dB noise figure. The IP3 of MAX2655/MAX2656 is adjustable by a single external bias resistor (RBIAS), allowing supply current to be optimized for a specific application. 12.7dB Gain Step (MAX2656 only) High Gain MAX2654: 15.1dB at 1575MHz MAX2655: 14.1dB at 1575MHz MAX2656: 13.5dB at 1960MHz Integrated 50 Output Matching Variable IP3 Set by One Bias Resistor (MAX2655/MAX2656 only) 0.1A Shutdown Mode (MAX2654/MAX2655 only) +2.7V to +5.5V Single-Supply Operation Ultra-Small 6-Pin SC70 Package Ordering Information The MAX2654/MAX2655/MAX2656 operate from a +2.7V to +5.5V single supply and are available in the miniature 6-pin SC70 package. ________________________Applications PINPACKAGE SOT TOPMARK -40C to +85C 6 SC70-6 AAI AAJ AAK TEMP. RANGE PART MAX2654EXT-T GPS Receivers MAX2655EXT-T -40C to +85C 6 SC70-6 GPS Receivers in Cell Phones MAX2656EXT-T -40C to +95C 6 SC70-6 DCS/PCS Cell Phones Typical Operating Circuit Satellite Phones Wireless Local Loop VCC = +3.0V Pin Configuration Cb 4 MAX2655 MAX2656 1 TOP VIEW VCTRL/GND BIAS RBIAS 10k BIAS (GND) 1 6 RFOUT L1 RFIN C1 GND RFIN 2 MAX2654 MAX2655 MAX2654 3 C2 GND (1) 2 5 ( ) IS FOR MAX2654 ONLY 4 SC70-6 ( ) ARE FOR MAX2654 ONLY 5 6 RFOUT 3 VCC PART FREQUENCY L1 (nH) C1 (pF) MAX2654 1575 5.6 6 C2 (pF) 1.6 MAX2655 1575 5.6 1800 1.5 MAX2656 1960 4.7 1800 1.2 ________________________________________________________________ Maxim Integrated Products 1 For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com. MAX2654/MAX2655/MAX2656 General Description The MAX2654/MAX2655/MAX2656 high third-order intercept point (IP3), low-noise amplifiers (LNAs) are designed for applications in GPS, PCS, WLL, and satellite phone systems. The MAX2654/MAX2655/MAX2656 incorporate on-chip internal output matching to 50, eliminating the need for external matching components. A shutdown feature in the MAX2654/MAX2655 reduces the operating current to 0.1A, eliminating the need for an external supply switch. MAX2654/MAX2655/MAX2656 1575MHz/1900MHz Variable-IP3 Low-Noise Amplifiers ABSOLUTE MAXIMUM RATINGS VCC to GND .............................................................-0.3V to +6V RF Input Power .................................................................+5dBm Continuous Power Dissipation (TA = +70C) 6-Pin SC70 (derate 3.1mW/C above +70C) ..............245mW Operating Temperature Range ...........................-40C to +85C Maximum Junction Temperature .....................................+150C Storage Temperature.........................................-65C to +150C Lead Temperature (soldering, 10s) .................................+300C Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. DC ELECTRICAL CHARACTERISTICS (VCC = +2.7V to +5.5V, RBIAS = 511 1%, TA = -40C to +85C. No RF signal applied. RFIN is AC coupled and terminated to 50. RFOUT is unconnected. Typical values are at VCC = +3.0V, TA = +25C, unless otherwise noted.) (Note 1) PARAMETER CONDITIONS Supply Voltage Operating Supply Current (MAX2654 only) VRFOUT = VCC VRFOUT = VCC TA = +25C VRFOUT = GND Operating Supply Current (MAX2656 only) VRFOUT = GND TA = +25C VRFOUT = VCC 2 TYP 2.7 VRFOUT = GND Operating Supply Current (MAX2655 only) MIN TA = +25C 5.8 TA = -40C to +85C MAX UNIT 5.5 V 8.2 9.2 TA = +25C 0.1 TA = -40C to +85C 1.0 2.1 RBIAS = 511 1% 8.3 RBIAS = 698 1% 5.9 RBIAS = 357 1% 10.1 RBIAS = 511 1%, TA = -40C to +85C mA A 10.0 mA 11.1 TA = +25C 0.1 TA = -40C to +85C 1.0 2.2 RBIAS = 511 1% 11.5 RBIAS = 715 1% 8.5 RBIAS = 511 1%, TA = +85C 13.6 TA = +25C 12.3 TA = +85C 14.6 15.2 mA mA Input Logic High at VRFOUT (Note 2) Input Logic Low at VRFOUT (Note 3) 2.0 0.6 Input Logic High Current at VRFOUT (Note 4) MAX2654/MAX2655 15.6 MAX2656 Input Logic Low Current at VRFOUT (Note 5) MAX2654/MAX2655 1.0 MAX2656 -24 _______________________________________________________________________________________ A V 71 V A A 1575MHz/1900MHz Variable-IP3 Low-Noise Amplifiers (MAX2654 Evaluation Kit, VCC = +3.0V, PIN = -30dBm, fIN = 1575MHz, VRFOUT = VCC through a 10k resistor, TA = +25C. Typical values are at VCC = +3.0V, TA = +25C, unless otherwise noted.) (Note 6) PARAMETER CONDITIONS Operating Frequency Range (Note 7) MIN TYP 1400 Gain (Note 8) 12.7 Gain Variation Over Temperature TA = -40C to +85C MAX UNIT 1700 MHz 15.1 0.15 dB 1.0 dB Input Third-Order Intercept Point (Note 9) -7.2 Input 1dB Compression Point -18 Noise Figure (Note 10) 1.5 Input Return Loss 9.7 dB Output Return Loss 8.4 dB Reverse Isolation 30 dB dBm dBm 1.8 dB AC ELECTRICAL CHARACTERISTICS (MAX2655) (MAX2655 Evaluation Kit, VCC = +3.0V, PIN = -30dBm, fIN = 1575MHz, VRFOUT = VCC through a 10k resistor, RBIAS = 511 1%, TA = +25C. Typical values are at VCC = +3.0V, TA = +25C, unless otherwise noted.) (Note 6) PARAMETER CONDITIONS Operating Frequency Range (Note 7) Gain (Note 8) Gain Variation Over Temperature TA = -40C to +85C Input Third-Order Intercept Point (Note 9) MIN TYP 1400 12.0 MAX UNIT 1700 MHz 14.1 0.6 RBIAS = 511 1% +2.8 RBIAS = 698 1% +2.2 RBIAS = 357 1% +3.8 dB 1.1 dB dBm Input 1dB Compression Point -12.2 Noise Figure (Note 10) 1.45 Input Return Loss 16.1 Output Return Loss 15.5 dB 32 dB Reverse Isolation dBm 1.9 dB dB _______________________________________________________________________________________ 3 MAX2654/MAX2655/MAX2656 AC ELECTRICAL CHARACTERISTICS (MAX2654) MAX2654/MAX2655/MAX2656 1575MHz/1900MHz Variable-IP3 Low-Noise Amplifiers AC ELECTRICAL CHARACTERISTICS (MAX2656) (MAX2656 Evaluation Kit, VCC = +3.0V, PIN = -30dBm, fIN = 1960MHz, VRFOUT = GND through a 12k resistor, RBIAS = 511 1%, TA = +25C. Typical values are at VCC = +3.0V, TA = +25C, unless otherwise noted.) (Note 6) PARAMETER CONDITIONS Operating Frequency Range (Note 7) Gain, High-Gain Mode MIN TYP 1800 (Note 11) 12 (Note 12) 0.8 Gain Variation Over Temperature TA = -40C to +85C 0.3 Input Third-Order Intercept Point (Note 13) Input 1dB Compression Point Noise Figure (Note 10) Input Return Loss Output Return Loss Reverse Isolation Gain Step Response Time UNIT 2000 MHz 13.5 Gain, Low-Gain Mode Gain Step MAX dB dB 1.2 12.7 RBIAS = 511 1% RBIAS = 715 1% dB dB +1.5 dBm -3 Low-gain mode (Note 12) +7.2 High-gain mode (Note 11) -7.0 Low-gain mode (Note 12) -1.2 High-gain mode (Note 11) 1.9 Low-gain mode (Note 12) 10.8 High-gain mode (Note 11) 14.4 Low-gain mode (Note 12) 19.3 High-gain mode (Note 11) 10.7 Low-gain mode (Note 12) 7.3 High-gain mode (Note 11) 28 Low-gain mode (Note 12) 25 3.2 dBm 2.4 dB dB dB dB s Note 1: Devices are production tested at TA = +25C. Minimum and maximum values are guaranteed by design and characterization over temperature and supply voltages to 6 sigma. Note 2: Minimum DC voltage through a 10k resistor that sets the MAX2654/MAX2655 to operate in normal mode and MAX2656 in low-gain mode. Note 3: Maximum DC voltage through a 10k resistor that sets the MAX2654/MAX2655 to operate in shutdown mode and MAX2656 in high-gain mode. Note 4: DC current required when VRFOUT is connected to VCC through a 10k resistor. Note 5: DC current required when VRFOUT is connected to GND through a 10k resistor. Note 6: Guaranteed by design and characterization to 3 sigma. Note 7: The part has been characterized at the specified frequency range. Operation outside of this range is possible, but not guaranteed. Note 8: Production tested at TA = +25C. Note 9: Measured with two input tones, f1 = 1570MHz, f2 = 1580MHz, both at -30dBm per tone. Note 10: Excludes PC board losses of 0.2dB for MAX2654/MAX2655 and 0.25dB for MAX2656. Note 11: High-gain mode is set up by connecting RFOUT to GND through a 12k resistor. Note 12: Low-gain mode is set up by connecting RFOUT to VCC through a 12k resistor. Note 13: Measured with two input tones, f1 = 1955MHz, f2 = 1965MHz, both at -30dBm per tone. 4 ______________________________________________________________________________________ 1575MHz/1900MHz Variable-IP3 Low-Noise Amplifiers MAX2654 SHUTDOWN CURRENT vs. TEMPERATURE 5 4 TA = +85C 3 TA = +25C 2 TA = -40C 1 0 2 3 4 5 VCC = +3.0V 0.5 -20 0 20 40 60 80 -40 -20 0 20 40 60 MAX2654 INPUT LOGIC CURRENT vs. TEMPERATURE MAX2654 INPUT LOGIC CURRENT vs. TEMPERATURE MAX2654 INPUT IP3 vs. TEMPERATURE INPUT LOGIC LOW AT VRFOUT 4 0 50 0 20 40 60 80 -10 -40 -20 0 20 40 60 -40 80 -20 0 20 40 60 TEMPERATURE (C) TEMPERATURE (C) TEMPERATURE (C) MAX2654 GAIN vs. FREQUENCY MAX2654 GAIN vs. SUPPLY VOLTAGE MAX2654 NOISE FIGURE vs. FREQUENCY 14 14 12 GAIN (dB) 10 8 6 TA = +85C 3.2 13 3.0 2.8 TA = -40C TA = +25C 80 MAX2654 toc09 15 MAX2654 toc07 16 NOISE FIGURE (dB) -20 -8 -9 45 40 -40 f1 = 1570 MHz f2 = 1580 MHz -7 55 INPUT IP3 (dBm) INPUT LOGIC CURRENT (A) 6 -6 MAX2654 toc05 MAX2654 toc04 60 80 MAX2654 toc06 TEMPERATURE (C) 7 MAX2654 toc03 INPUT LOGIC LOW AT VRFOUT 1.0 TEMPERATURE (C) INPUT LOGIC HIGH AT VRFOUT INPUT LOGIC CURRENT (A) 1.5 SUPPLY VOLTAGE (V) 8 GAIN (dB) VCC = +6.0V -40 6 INPUT LOGIC HIGH AT VRFOUT INPUT LOGIC VOLTAGE (V) 6 2.0 MAX2654 toc08 SUPPLY CURRENT (mA) 7 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MAX2654 INPUT LOGIC VOLTAGE vs. TEMPERATURE MAX2654 toc02 MAX2654 toc01 8 SHUTDOWN CURRENT (A) MAX2654 SUPPLY CURRENT vs. SUPPLY VOLTAGE 12 2.6 2.4 2.2 2.0 4 11 1.8 2 0 10 1000 1200 1400 1600 1800 FREQUENCY (MHz) 2000 2200 f0 = 1575MHz 2.0 2.5 3.0 1.6 3.5 4.0 4.5 5.0 SUPPLY VOLTAGE (V) 5.5 6.0 1000 1200 1400 1600 1800 2000 FREQUENCY (MHz) _______________________________________________________________________________________ 5 MAX2654/MAX2655/MAX2656 Typical Operating Characteristics (PIN = -30dBm, input and output are terminated to 50, VCC = +3.0V, TA = +25C, high-gain, low-gain mode is applicable only to the MAX2656, unless otherwise noted.) Typical Operating Characteristics (continued) (PIN = -30dBm, input and output are terminated to 50, VCC = +3.0V, TA = +25C, high-gain, low-gain mode is applicable only to the MAX2656, unless otherwise noted.) MAX2654 NOISE FIGURE vs. TEMPERATURE 1.8 1.6 1.4 1.2 INPUT RETURN LOSS -4 -6 MAX2654 toc12 -2 -25 -30 -35 -40 -45 -50 -8 -55 -10 -20 0 20 40 60 80 -60 1000 1200 1400 1600 1800 2000 1000 1200 2200 1400 1600 1800 2000 TEMPERATURE (C) FREQUENCY (MHz) FREQUENCY (MHz) MAX2654 OUTPUT POWER vs. INPUT POWER MAX2654 P1dB vs. TEMPERATURE MAX2654 SHUTDOWN TIME fIN = 1575MHz -10 -12 -14 -16 0 -10 -20 OUTPUT POWER (dBm) P1dB (dBm) -18 -19 -20 2200 MAX2655 toc15 -17 MAX2654 toc13 8 6 4 2 0 -2 -4 -6 -8 MAX2654 toc14 -40 -30 -40 -50 US -60 2.8s -70 -21 -80 -22 -100 -90 -30 -26 -22 -18 -14 -6 -10 -2 2 -40 -20 0 20 40 60 80 0 1.0 2.0 3.0 4.0 TEMPERATURE (C) TIME (s) MAX2655 SUPPLY CURRENT vs. SUPPLY VOLTAGE MAX2655 SUPPLY CURRENT vs. SUPPLY VOLTAGE MAX2655 SUPPLY CURRENT vs. SUPPLY VOLTAGE 7 5 TA = +85C 4 TA = +25C 2 8 SUPPLY CURRENT (mA) 6 TA = -40C RBIAS = 511 1% 9 7 6 TA = +85C 5 TA = +25C 4 3 TA = -40C 2 1 3 4 SUPPLY VOLTAGE (V) 5 6 10 8 TA = +85C 6 TA = +25C 4 TA = -40C 0 2 RBIAS = 357 1% 12 2 1 0 14 SUPPLY CURRENT (mA) RBIAS = 698 1% 3 10 MAX2655 toc16 8 MAX2655 toc18 INPUT POWER (dBm) MAX2655 toc17 OUTPUT POWER (dBm) -20 MAX2654 toc11 OUTPUT RETURN LOSS 1.0 6 MAX2654 REVERSE ISOLATION vs. FREQUENCY REVERSE ISOLATION (dB) 2.0 0 INPUT/OUTPUT RETURN LOSS (dB) fIN = 1575MHz 2.2 NOISE FIGURE (dB) MAX2654 INPUT/OUTPUT RETURN LOSS vs. FREQUENCY MAX2654 toc10 2.4 SUPPLY CURRENT (mA) MAX2654/MAX2655/MAX2656 1575MHz/1900MHz Variable-IP3 Low-Noise Amplifiers 0 2 3 4 SUPPLY VOLTAGE (V) 5 6 2 3 4 5 SUPPLY VOLTAGE (V) ______________________________________________________________________________________ 6 1575MHz/1900MHz Variable-IP3 Low-Noise Amplifiers 6 4 2 0 200 400 600 800 1000 1200 1400 1600 RBIAS () VCC = +3.0V -20 8 6 INPUT IP3 (dBm) INPUT LOGIC HIGH AT VRFOUT 8 7 6 0 40 PIN = -30dBm f1 = 1570 MHz f2 = 1580 MHz 0 20 40 TEMPERATURE (C) 60 10 0 -2 400 TA = +25C 10 800 1000 1200 1400 1600 TEMPERATURE (C) 14 TA = +25C 13 TA = +85C 12 9 800 1000 1200 1400 1600 RBIAS () 3.4 2.0 2.5 3.0 3.2 RBIAS = 357 1% 3.0 RBIAS = 511 1% 2.8 RBIAS = 698 1% 2.6 2.4 2.2 2.0 1.6 1.4 10 600 2000 2200 1.8 fIN = 1575MHz RBIAS = 511 1% 8 1800 FREQUENCY (MHz) MAX2655 NOISE FIGURE vs. FREQUENCY TA = -40C 11 400 1000 1200 1400 1600 600 11 200 RBIAS = 698 1% 0 15 GAIN (dB) GAIN (dB) TA = +85C 12 RBIAS = 511 1% MAX2655 GAIN vs. SUPPLY VOLTAGE 14 13 RBIAS = 357 1% 2 TA = -40C TA = -40C 15 80 4 TA = +25C MAX2655 toc26 16 60 8 6 200 MAX2655 toc25 17 40 12 2 MAX2655 GAIN vs. RBIAS fIN = 1575MHz 20 14 TA = +85C 4 80 0 16 NOISE FIGURE (dB) -20 -20 MAX2655 GAIN vs. FREQUENCY -10 -40 18 -40 80 MAX2655 INPUT IP3 vs. RBIAS -8 4 60 TEMPERATURE (C) -6 INPUT LOGIC LOW AT VRFOUT INPUT LOGIC LOW AT VRFOUT TEMPERATURE (C) -4 5 20 GAIN (dB) MAX2655 toc22 9 INPUT LOGIC CURRENT (A) 10 1.0 0.5 -40 MAX2655 INPUT LOGIC CURRENT vs. TEMPERATURE 10 MAX2655 toc21 MAX2655 toc20 VCC = +6.0V MAX2655 toc24 TA = +85C 8 1.5 MAX2655 toc27 TA = +25C 10 INPUT LOGIC HIGH AT VRFOUT INPUT LOGIC VOLTAGE (V) SHUTDOWN CURRENT (nA) TA = -40C 2.0 MAX2655 toc23 14 SUPPLY CURRENT (mA) 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MAX2655 toc19 16 12 MAX2655 INPUT LOGIC VOLTAGE vs. TEMPERATURE MAX2655 SHUTDOWN CURRENT vs. TEMPERATURE MAX2655 SUPPLY CURRENT vs. RBIAS 3.5 4.0 4.5 5.0 SUPPLY VOLTAGE (V) 5.5 6.0 1000 1200 1400 1600 1800 2000 FREQUENCY (MHz) _______________________________________________________________________________________ 7 MAX2654/MAX2655/MAX2656 Typical Operating Characteristics (continued) (PIN = -30dBm, input and output are terminated to 50, VCC = +3.0V, TA = +25C, high-gain, low-gain mode is applicable only to the MAX2656, unless otherwise noted.) Typical Operating Characteristics (continued) (PIN = -30dBm, input and output are terminated to 50, VCC = +3.0V, TA = +25C, high-gain, low-gain mode is applicable only to the MAX2656, unless otherwise noted.) 1.2 0 20 40 60 80 MAX2655 OUTPUT POWER vs. INPUT POWER MAX2655 toc31 OUTPUT POWER (dBm) -30 -40 -50 -60 5.8s -80 -90 -100 3.0 4.0 5.0 6.0 7.0 12 10 8 6 4 2 MAX2655 toc30 -45 -50 -60 1000 1200 1400 1600 1800 2000 FREQUENCY (MHz) 2200 MAX2655 P1dB vs. RBIAS fIN = 1575MHz -8 fIN = 1575MHz -9 -10 -11 RBIAS = 357 1% 0 -2 -4 -6 -8 -10 -12 -14 -16 8.0 RBIAS = 511 1% TA = +85C -12 -13 TA = +25C -14 -15 RBIAS = 698 1% TA = -40C -16 -17 -18 -30 -26 -22 -18 -14 -10 -6 -2 200 2 400 600 800 1000 1200 1400 1600 TIME (us) INPUT POWER (dBm) RBIAS () MAX2656 SUPPLY CURRENT vs. SUPPLY VOLTAGE MAX2656 SUPPLY CURRENT vs. SUPPLY VOLTAGE MAX2656 SUPPLY CURRENT vs. SUPPLY VOLTAGE SUPPLY CURRENT (mA) 8 TA = +25C 7 6 TA = -40C 5 4 3 2 RBIAS = 715 1% HIGH-GAIN MODE 1 0 2 3 4 SUPPLY VOLTAGE (V) 5 6 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 TA = +85C 18 TA = +25C TA = -40C MAX2654 toc36 TA = +85C 9 TA = +85C 16 14 SUPPLY CURRENT (mA) MAX2654 toc34 10 8 -40 MAX2654 toc35 OUTPUT POWER (dBm) -20 2.0 -35 -55 MAX2655 toc32 MAX2655 SHUTDOWN TIME -70 -30 -20 FREQUENCY (MHz) 0 1.0 -16 TEMPERATURE (C) -10 0 -12 P1dB (dBm) -20 -8 INPUT RETURN LOSS -24 1000 1200 1400 1600 1800 2000 2200 1.0 -40 -25 MAX2655 toc33 1.4 OUTPUT RETURN LOSS REVERSE ISOLATION (dB) 1.6 -4 -20 MAX2655 toc29 RBIAS = 511 1% 0 INPUT/OUTPUT RETURN LOSS (dB) fIN = 1575MHz 1.8 NOISE FIGURE (dB) MAX2655 toc28 2.0 MAX2655 REVERSE ISOLATION vs. FREQUENCY MAX2655 INPUT/OUTPUT RETURN LOSS vs. FREQUENCY MAX2655 NOISE FIGURE vs. TEMPERATURE SUPPLY CURRENT (mA) MAX2654/MAX2655/MAX2656 1575MHz/1900MHz Variable-IP3 Low-Noise Amplifiers TA = +25C 12 10 TA = -40C 8 6 4 RBIAS = 511 1% HIGH-GAIN MODE RBIAS = 392 1% HIGH-GAIN MODE 2 0 2 3 4 SUPPLY VOLTAGE (V) 5 6 2 3 4 SUPPLY VOLTAGE (V) _______________________________________________________________________________________ 5 6 1575MHz/1900MHz Variable-IP3 Low-Noise Amplifiers MAX2656 SUPPLY CURRENT vs. SUPPLY VOLTAGE TA = -40C 5 4 3 2 RBIAS = 715 1% LOW-GAIN MODE 1 0 2 3 4 5 TA = -40C MAX2654 toc40 TA = -40C 800 26 24 22 20 18 16 14 12 10 8 6 4 2 0 5 LOW-GAIN MODE 6 MAX2654 toc39 RBIAS = 392 1% LOW-GAIN MODE 2 3 4 5 MAX2656 INPUT LOGIC VOLTAGE vs. TEMPERATURE 2.0 INPUT LOGIC HIGH AT VRFOUT TA = +25C 1.5 1.0 INPUT LOGIC LOW AT VRFOUT TA = -40C 0.5 400 600 800 -40 1000 1200 1400 1600 -20 0 20 40 60 RBIAS () RBIAS () TEMPERATURE (C) MAX2656 INPUT LOGIC CURRENT vs. TEMPERATURE MAX2656 INPUT IP3 vs. RBIAS MAX2656 INPUT IP3 vs. RBIAS -1 TA = +25C -3 -5 -7 TA = +85C -9 -11 -20 INPUT LOGIC LOW AT VRFOUT -13 -40 -20 0 20 40 TEMPERATURE (C) 60 80 TA = +85C 8 TA = +25C 6 4 2 0 f1 = 1955MHz f2 = 1965MHz PIN = -20dBm -4 -15 -30 LOW-GAIN MODE 10 -2 f1 = 1955MHz f2 = 1965MHz PIN = -20dBm 80 12 INPUT IP3 (dBm) -10 TA = -40C 1 INPUT LOGIC HIGH AT VRFOUT 0 HIGH-GAIN MODE 3 MAX2654 toc44 5 MAX2654 toc43 10 6 SUPPLY VOLTAGE (V) TA = +85C 200 1000 1200 1400 1600 INPUT IP3 (dBm) INPUT LOGIC CURRENT (A) SUPPLY CURRENT (mA) SUPPLY CURRENT (mA) TA = +25C 600 4 MAX2656 SUPPLY CURRENT vs. RBIAS TA = +85C 400 6 SUPPLY VOLTAGE (V) HIGH-GAIN MODE TA = +25C TA = -40C 8 0 MAX2656 SUPPLY CURRENT vs. RBIAS 200 12 10 2 3 SUPPLY VOLTAGE (V) 26 24 22 20 18 16 14 12 10 8 6 4 2 0 14 4 RBIAS = 511 1% LOW-GAIN MODE 2 6 16 MAX2654 toc42 6 TA = +25C TA = +85C MAX2654 toc45 TA = +25C 20 18 INPUT LOGIC VOLTAGE (V) 8 7 TA = +85C SUPPLY CURRENT (mA) 9 SUPPLY CURRENT (mA) SUPPLY CURRENT (mA) 10 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MAX2654 toc38 TA = +85C MAX2656 SUPPLY CURRENT vs. SUPPLY VOLTAGE MAX2654 toc41 12 11 MAX2654 toc37 MAX2656 SUPPLY CURRENT vs. SUPPLY VOLTAGE TA = -40C -6 200 400 600 800 1000 1200 1400 1600 RBIAS () 200 400 600 800 1000 1200 1400 1600 RBIAS () _______________________________________________________________________________________ 9 MAX2654/MAX2655/MAX2656 Typical Operating Characteristics (continued) (PIN = -30dBm, input and output are terminated to 50, VCC = +3.0V, TA = +25C, high-gain, low-gain mode is applicable only to the MAX2656, unless otherwise noted.) Typical Operating Characteristics (continued) (PIN = -30dBm, input and output are terminated to 50, VCC = +3.0V, TA = +25C, high-gain, low-gain mode is applicable only to the MAX2656, unless otherwise noted.) 2 GAIN (dB) GAIN (dB) 1 RBIAS = 511 1% 0 -1 -2 fIN = 1960MHz HIGH-GAIN MODE TA = -40C 15 14 13 12 11 10 TA = +25C 9 8 7 RBIAS = 715 1% -3 -4 MAX2654 toc48 MAX2654 toc47 RBIAS = 392 1% 3 18 17 16 TA = +85C 6 1000 1200 1400 1600 1800 2000 2200 200 400 600 800 1000 1200 1400 1600 FREQUENCY (MHz) RBIAS () MAX2656 GAIN vs. RBIAS MAX2656 GAIN vs. SUPPLY VOLTAGE MAX2656 GAIN vs. SUPPLY VOLTAGE LOW-GAIN MODE TA = -40C 16.0 TA = -40C RBIAS = 511 1% f1 = 1960MHz HIGH-GAIN MODE 15.5 2 GAIN (dB) 2 RBIAS = 511 1% fIN = 1960MHz MAX2654 toc51 3 1 GAIN (dB) 3 GAIN (dB) LOW-GAIN MODE FREQUENCY (MHz) fIN = 1960MHz LOW-GAIN MODE 0 MAX2656 GAIN vs. RBIAS MAX2654 toc50 4 4 MAX2654 toc46 16 15 RBIAS = 392 1% 14 13 12 HIGH-GAIN MODE 11 10 RBIAS = 511 1% 9 8 7 6 RBIAS = 698 1% 5 4 3 2 1 0 1000 1200 1400 1600 1800 2000 2200 MAX2656 GAIN vs. FREQUENCY MAX2654 toc49 GAIN (dB) MAX2656 GAIN vs. FREQUENCY TA = +25C TA = +25C TA = -40C 15.0 1 TA = +25C TA = +85C 14.5 TA = +85C -1 TA = +85C -2 0 400 600 800 1000 1200 1400 1600 3.0 3.5 4.0 4.5 5.0 5.5 6.0 3.0 3.5 4.0 4.5 5.0 5.5 6.0 SUPPLY VOLTAGE (V) MAX2656 NOISE FIGURE vs. FREQUENCY MAX2656 NOISE FIGURE vs. TEMPERATURE MAX2656 INPUT/OUTPUT RETURN LOSS vs. FREQUENCY 2.0 RBIAS = 715 1% 1.8 RBIAS = 511 1% f1 = 1960MHz RBIAS = 511 1% 2.2 2.0 1.8 1.6 1.4 1.2 1.4 1500 1600 1700 1800 1900 2000 2100 2200 2300 FREQUENCY (MHz) 1.0 -40 -20 0 20 40 TEMPERATURE (C) 60 80 0 -2 INPUT/OUTPUT RETURN LOSS (dB) RBIAS = 392 1% MAX2654 toc53 MAX2654 toc52 2.4 LOW-GAIN MODE -4 -6 -8 -10 -12 OUTPUT RETURN LOSS INPUT RETURN LOSS -14 -16 -18 -20 -22 -24 1000 1200 1400 1600 1800 2000 FREQUENCY (MHz) ______________________________________________________________________________________ 2200 MAX2654 toc54 SUPPLY VOLTAGE (V) 2.2 10 2.5 RBIAS () 2.4 1.6 14.0 2.5 NOISE FIGURE (dB) 200 NOISE FIGURE (dB) MAX2654/MAX2655/MAX2656 1575MHz/1900MHz Variable-IP3 Low-Noise Amplifiers 1575MHz/1900MHz Variable-IP3 Low-Noise Amplifiers LOW-GAIN MODE -25 INPUT RETURN LOSS -10 -12 -10 -15 -30 OUTPUT POWER (dBm) -6 -35 -40 HIGH-GAIN MODE -45 -50 -20 -25 -30 2.0s -35 -55 -14 1000 1200 1400 1600 1800 2000 -60 1000 1200 1400 2200 0 2200 1.0 2.0 3.0 4.0 MAX2656 GAIN STEP TIME FROM HIGH TO LOW MAX2656 OUTPUT POWER vs. INPUT POWER MAX2656 OUTPUT POWER vs. INPUT POWER OUTPUT POWER (dBm) -25 -30 2.0s -35 -40 2.0 3.0 4.0 HIGH-GAIN MODE RBIAS = 392 1% RBIAS = 715 1% RBIAS = 511 1% -30 TIME (s) -25 -20 -15 -10 -5 fIN = 1960MHz LOW-GAIN MODE RBIAS = 392 1% RBIAS = 715 1% RBIAS = 511 1% -30 0 TA = +25C TA = +85C 200 400 600 800 1000 1200 1400 1600 RBIAS () -20 -15 -10 -5 0 INPUT POWER (dBm) 4 3 2 1 0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -10 -11 -12 MAX2654 toc62 TA = +40C P1dB (dBm) fIN = 1960MHz LOW-GAIN MODE -25 MAX2656 P1dB vs. RBIAS MAX2654 toc61 4 3 2 1 0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -10 2 0 -2 -4 -6 -8 -10 -12 -14 -16 -18 -20 -22 -24 -26 -28 -30 INPUT POWER (dBm) MAX2656 P1dB vs. RBIAS P1dB (dBm) 1.0 fIN = 1960MHz OUTPUT POWER (dBm) MAX2654 toc58 -20 10 8 6 4 2 0 -2 -4 -6 -8 -10 -12 -14 -16 -18 -20 MAX2654 toc60 TIME (s) MAX2654 toc59 FREQUENCY (MHz) -15 0 -40 1600 1800 2000 FREQUENCY (MHz) -10 OUTPUT POWER (dBm) -20 -4 -8 MAX2656 GAIN STEP TIME FROM LOW TO HIGH MAX2654 toc56 -2 OUTPUT RETURN LOSS REVERSE ISOLATION (dB) HIGH-GAIN MODE MAX2654 toc55 INPUT/OUTPUT RETURN LOSS (dB) 0 MAX2656 REVERSE ISOLATION vs. FREQUENCY MAX2654 toc57 MAX2656 INPUT/OUTPUT RETURN LOSS vs. FREQUENCY fIN = 1960MHz HIGH-GAIN MODE TA = -40C TA = +85C TA = +25C 200 400 600 800 1000 1200 1400 1600 RBIAS () ______________________________________________________________________________________ 11 MAX2654/MAX2655/MAX2656 Typical Operating Characteristics (continued) (PIN = -30dBm, input and output are terminated to 50, VCC = +3.0V, TA = +25C, high-gain, low-gain mode is applicable only to the MAX2656, unless otherwise noted.) MAX2654/MAX2655/MAX2656 1575MHz/1900MHz Variable-IP3 Low-Noise Amplifiers Pin Description PIN MAX2655/ MAX2656 NAME MAX2654 DESCRIPTION 1 --- GND Ground. Connect to the PC board ground plane through a 0.017in width by 0.035in length line. 2, 5 2, 5 GND Ground. Connect to the PC board ground plane with as low an inductance path as possible. --- 1 BIAS Bias Control. Connect a resistor RBIAS from BIAS to GND. RBIAS sets IP3 and supply current. 3 3 RFIN Amplifier Input. Requires a DC blocking capacitor and external matching components. 4 4 VCC Supply Voltage. Bypass to ground with an appropriate capacitor as close to the IC as possible. Refer to MAX2654/MAX2655/MAX2656 EV kits for capacitor values. 6 6 RFOUT RF Output. Incorporates an internal DC blocking capacitor. RFOUT is internally matched to 50. DC bias on this pin selects gain-mode (MAX2656) or shutdown mode (MAX2654/MAX2655) (see Applications Information). Detailed Description The MAX2654/MAX2655/MAX2656 are low-noise amplifiers designed for applications in GPS receivers, satellite and PCS phones. The MAX2655/MAX2656 feature variable IP3s, adjusted by a single external bias resistor. Another feature of the MAX2654/MAX2655 is a power shutdown control mode, eliminating the need for an external supply switch. The MAX2656 features a high- and low-gain control mode selected by an external logic control. Input and Output Ports The MAX2654/MAX2655/MAX2656 incorporate on-chip matching networks to 50 at the output ports, eliminating the need for external matching components. (For MAX2655, a shunt inductor is recommended for best output return loss. Refer to the MAX2655 EV kit schematic.) The MAX2654/MAX2655/MAX2656 require simple matching networks at the input ports. The values of these matching components are recommended in the Typical Operating Circuit. Variable IP3 The IP3 of MAX2655 and MAX2656 is adjusted through an external resistor (RBIAS). Tables 1 and 2 summarize the values of RBIAS for different IP3s for MAX2655 and MAX2656. Gain-Step Control (MAX2656) Table 1. RBIAS vs. IP3 for MAX2655 RBIAS () IP3 (dBm) 698 +2.2 5.8 357 +3.8 10.1 Table 2. RBIAS vs. IP3 for MAX2656 RBIAS () IP3 (dBm) ICC (mA) 715 -3.0 8.5 511 +1.5 11.5 age at RFOUT through a 10k resistor is less than +0.6V, the device is in high-gain mode. When the applied DC voltage is greater than +2.0V, the device gain is attenuated by 13dB. A standard logic output can be applied as shown in the Typical Operating Circuit. Shutdown-Enable (MAX2654/MAX2655) The DC bias voltage at RFOUT of the MAX2654/ MAX2655 serves as a shutdown enable input. When the applied DC voltage at RFOUT through a 10k resistor is less than +0.6V, the device is in shutdown mode. When the DC voltage is greater than +2.0V, the device is enabled. The DC bias voltage at RFOUT of the MAX2656 serves as a gain-step control input. When the applied DC volt12 ICC (mA) ______________________________________________________________________________________ 1575MHz/1900MHz Variable-IP3 Low-Noise Amplifiers Input Matching For optimum performance, input matching is required. The MAX2654/MAX2655/MAX2656 require a simple LC matching network. The Typical Operating Circuit shows the recommended input matching networks. These values are optimized for best simultaneous gain, noise figure, and return loss performance. To aid in the design of the matching network for other frequencies, Tables 3 to 12 list typical device S parameters for various biases, and Tables 13 to 19 list typical device noise parameters. Layout Issues A properly designed PC board is essential to any RFmicrowave circuit. Use controlled impedance lines on all high-frequency inputs and outputs. Bypass V CC with decoupling capacitors located close to the device. For long VCC lines, it may be necessary to add addi- tional decoupling capacitors. Locate these additional capacitors further away from the device package. Proper grounding of the GND pins is essential. If the PC board uses a topside RF ground, connect it directly to all GND pins. For a board where the ground plane is not on the component layer, the best technique is to connect the GND pins to the board with a multiple vias close to the package. For MAX2654, connect Pin1 to the PC board ground plane through a 0.017in width by 0.035in length line. Chip Information TRANSISTOR COUNT: 135 (Same for MAX2654, MAX2655, MAX2656) Table 3. MAX2654 Typical Scattering Parameters, VCC = +3.0V, TA = +25C S22 PHASE (Degrees) S12 PHASE (Degrees) S22 MAG 0.002753 170.8 0.90701 -47.453 0.002910 -130.71 0.878 -54.904 -117.79 0.005752 -125.12 0.83831 -63.446 -132.32 0.008972 -135.01 0.77334 -72.44 3.4788 -146.86 0.01348 -124.91 0.67495 -82.018 -120.58 3.9157 -164.15 0.016427 -137.27 0.55261 -89.081 -119.99 3.8846 -172.96 0.020271 -137.19 0.46295 -86.402 0.74377 -125.96 3.8651 179.29 0.021794 -143.89 0.43268 -89.301 1620 0.74343 -122.43 3.8653 -179.83 0.022595 -141.19 0.41893 -84.53 1700 0.74872 -131.39 3.7082 163.93 0.025757 -151.95 0.37494 -83.039 1800 0.73694 -136.12 3.2889 151.43 0.028723 -159.76 0.37623 -75.376 1900 0.72495 -140.5 2.8909 144.75 0.032248 -166.26 0.39672 -74.117 2000 0.71031 -143.68 2.5973 137.69 0.035033 -172.96 0.41935 -76.724 2100 0.70624 -145.83 2.3705 134.96 0.040913 -175.76 0.41706 -79.974 2200 0.70128 -148.39 2.1802 132.27 0.042424 -177.68 0.42505 -82.499 2300 0.68799 -150.21 2.1075 128.83 0.04447 178.79 0.41968 -85.106 FREQ. (MHz) S11 MAG S11 PHASE (Degrees) S21 MAG S21 PHASE (Degrees) S12 MAG 1000 0.89385 -74.912 1.2528 -82.605 1100 0.80001 -97.884 2.0362 -104.54 1200 0.73938 -104.55 2.5475 1300 0.72262 -109.59 3.1159 1400 0.7281 -114.65 1500 0.73978 1575 0.74196 1600 ______________________________________________________________________________________ 13 MAX2654/MAX2655/MAX2656 Applications Information MAX2654/MAX2655/MAX2656 1575MHz/1900MHz Variable-IP3 Low-Noise Amplifiers Table 4. MAX2655 Typical Scattering Parameters at RBIAS = 511 1%, VCC = +3.0V, TA = +25C FREQ. (MHz) S11 MAG S11 PHASE (Degrees) S21 MAG S21 PHASE (Degrees) S12 MAG S12 PHASE (Degrees) S22 MAG S22 PHASE (Degrees) 1000 0.59723 -79.498 0.91247 -34.897 0.001646 -99.959 0.88117 119.82 1100 0.59068 -83.632 1.5336 -45.588 0.001988 -51.718 0.83976 103.15 1200 0.5904 -87.65 2.3117 -61.383 0.004163 -82.928 0.76535 81.178 1300 0.58711 -92.428 3.2473 -83.97 0.009779 -84.17 0.6117 52.977 1400 0.57106 -94.34 3.5861 -101.87 0.011201 -86.383 0.50664 20.5 1500 0.57768 -98.258 4.3458 -123.9 0.014933 -97.965 0.34119 -28.685 1575 0.5781 -103.91 4.4302 -144.19 0.019118 -105.2 0.25507 -71.998 1600 0.57857 -104.48 4.4008 -145.38 0.021184 -104.74 0.2367 -80.898 1620 0.57926 -105.5 4.4007 -152.89 0.021729 -109.4 0.22368 -95.033 1700 0.58239 -105.06 4.2803 -163.13 0.025452 -113.29 0.18985 -127.47 1800 0.58188 -108.51 3.9687 -177.21 0.033166 -119.88 0.14956 -160.12 1900 0.58208 -112.6 3.6829 171.11 0.040325 -130.27 0.10041 176.36 2000 0.57675 -117.04 3.3552 161.3 0.04621 -137.07 0.051383 164.53 2100 0.57434 -121.08 3.0813 153.88 0.05145 -145.65 0.012452 -134.07 2200 0.56774 -125.61 2.8336 148.07 0.057267 -149.16 0.047711 -71.583 2300 0.55458 -130.74 2.6639 143.06 0.065198 -162.21 0.08445 -72.804 Table 5. MAX2655 Typical Scattering Parameters at RBIAS = 698 1%, VCC = +3.0V, TA = +25C 14 FREQ. (MHz) S11 MAG S11 PHASE (Degrees) S21 MAG S21 PHASE (Degrees) S12 MAG S12 PHASE (Degrees) S22 MAG S22 PHASE (Degrees) 1000 0.62911 -82.450 0.7970 -31.488 0.003002 -104.85 0.88535 119.82 1100 0.62089 -87.005 1.3504 -42.208 0.002523 -50.324 0.84118 103.08 1200 0.61345 -91.280 2.0452 -58.035 0.006107 -69.38 0.76587 80.942 1300 0.60597 -95.939 2.909 -80.743 0.007511 -83.194 0.61307 52.718 1400 0.58802 -98.286 3.2138 -99.165 0.009273 -87.97 0.50978 20.058 1500 0.59164 -102.20 3.9422 -121.36 0.015381 -93.01 0.34549 -30.318 1575 0.5791 -103.91 4.0102 -144.19 0.019118 -105.2 0.25507 -71.998 1600 0.58714 -105.34 3.9948 -143.14 0.019579 -106.65 0.24268 -82.625 1620 057926 -105.5 3.9947 -152.89 0.021729 -109.4 0.22368 -95.033 1700 058676 -108.86 3.9023 -161.16 0.024241 -112.37 019587 -128.98 1800 0.5838 -111.82 3.6272 -175.31 0.03086 -123.02 0.15783 -162.20 1900 0.58607 -116.03 3.3953 172.74 0.035557 -125.05 0.11288 173.18 2000 0.57619 -120.26 3.0665 162.89 0.044106 -139.82 0.062055 157.77 2100 0.57242 -124.54 2.8205 155.08 0.049281 -144.9 0.010666 179.03 2200 0.56566 -129.00 2.6196 148.86 0.05691 -150.75 0.035549 -70.369 2300 0.54936 -133.16 2.4634 144.01 0.062178 -160.01 0.072149 -70.836 ______________________________________________________________________________________ 1575MHz/1900MHz Variable-IP3 Low-Noise Amplifiers FREQ. (MHz) S11 MAG S11 PHASE (Degrees) S21 MAG 1000 0.56876 -75.638 1100 0.57354 -79.615 S21 PHASE (Degrees) S12 MAG 1.0228 -38.37 0.001432 1.7113 -48.788 0.002037 S12 PHASE (Degrees) S22 MAG S22 PHASE (Degrees) -136.5 0.8844 119.99 -47.677 0.83949 103.13 1200 0.5752 -83.616 2.5583 -64.464 0.003745 -50.552 0.76395 81.134 1300 0.57611 -88.862 3.5894 -86.844 0.009650 -90.04 0.61396 53.171 1400 0.56217 -90.251 3.9229 -104.69 0.010893 -89.806 0.51183 21.274 1500 0.57443 -94.617 4.739 -126.43 0.016353 -96.328 0.33751 -27.732 1575 0.5791 -103.91 4.4302 -144.19 0.019118 -105.2 0.25507 -71.998 1600 0.57728 -97.916 4.7639 -148.03 0.021107 -101.47 0.23015 -78.116 1620 0.57926 -105.5 4.4247 -152.89 0.021729 -109.4 0.22368 -95.033 1700 0.58263 -101.81 4.6153 -165.15 0.027176 -110.56 0.18109 -124.28 1800 0.58172 -104.76 4.2503 -179.13 0.03404 -122.93 0.14227 -156.86 1900 0.59021 -109.2 3.9613 169.66 0.038478 -129.77 0.093038 179.75 2000 0.58544 -113.89 3.5876 159.82 0.047157 -138.47 0.042695 170.54 2100 0.57845 -118.56 3.2684 152.7 0.051896 -148.68 0.01988 -102.15 2200 0.56916 -123.03 3.0232 147.26 0.059345 -152.11 0.056446 -73.103 2300 0.55644 -128.01 2.8345 142.19 0.068672 -160.17 0.089954 -74.995 Table 7. MAX2656 Typical Scattering Parameters, High-Gain Mode, at RBIAS = 511 1%, VCC = +3.0V, TA = +25C FREQ. (MHz) S11 MAG S11 PHASE (Degrees) S21 MAG S21 PHASE (Degrees) S12 MAG S12 PHASE (Degrees) S22 MAG S22 PHASE (Degrees) 1000 0.63142 -73.825 2.4002 -129.06 0.004147 -162.52 0.87308 -41.315 1100 0.59051 -78.03 2.3671 -134.38 0.006135 -171.89 0.85424 -46.229 1200 0.56752 -81.06 2.6326 -135.42 0.007461 -167.15 0.83104 -52.424 1300 0.55826 -83.912 3.1307 -140.07 0.007440 -164.59 0.79537 -59.678 1400 0.56002 -87.34 3.5568 -147.38 0.007593 -150.02 0.73564 -67.835 1500 0.57586 -91.116 4.2531 -158.4 0.010095 -155.76 0.65006 -75.902 1600 0.5864 -96.435 4.4809 -171.35 0.014417 -152.43 0.54267 -81.344 1700 0.58857 -101.08 4.6783 177.69 0.016613 -151.45 0.45374 -84.916 1800 0.59955 -104.86 4.7700 166.1 0.020609 -148.24 0.35275 -85.393 1900 0.61044 -111.2 4.7424 154.87 0.027411 -153.76 0.27393 -74.748 1960 0.61106 -114.86 4.4121 147.65 0.030933 -160.6 0.2662 -65.175 2000 0.60275 -117.39 4.4603 142.14 0.031396 -160.69 0.27338 -58.225 2100 0.5816 -122.38 3.9604 134.23 0.038737 -171.08 0.31122 -52.379 2200 0.56282 -126.82 3.6073 129.18 0.040865 -174.7 0.34011 -51.974 2300 0.53861 -129.73 3.4632 125.01 0.046903 177.28 0.3558 -51.606 ______________________________________________________________________________________ 15 MAX2654/MAX2655/MAX2656 Table 6. MAX2655 Typical Scattering Parameters at RBIAS = 357 1%, VCC = +3.0V, TA = +25C MAX2654/MAX2655/MAX2656 1575MHz/1900MHz Variable-IP3 Low-Noise Amplifiers Table 8. MAX2656 Typical Scattering Parameters, High-Gain Mode, at RBIAS = 715 1%, VCC = +3.0V, TA = +25C FREQ. (MHz) S11 MAG S11 PHASE (Degrees) S21 MAG S21 PHASE (Degrees) S12 MAG S12 PHASE (Degrees) S22 MAG S22 PHASE (Degrees) 1000 0.65417 -76.577 2.0972 -126.37 1100 0.61223 -81.359 2.0662 -132.14 0.004827 -157.3 0.87164 -41.347 0.007646 -176.69 0.85387 -46.243 1200 0.58803 -85.416 2.3137 -133.26 0.006931 176.19 0.83157 -52.222 1300 0.57284 -88.662 2.7587 -138.05 0.008049 -179.37 0.79484 -59.365 1400 0.57177 -92.515 3.1439 -145.48 0.009242 -170.62 0.7368 -67.732 1500 0.57713 -96.934 3.7542 -157.21 0.01181 -160.49 0.65204 -75.241 1600 0.56974 -101.32 3.8899 -168.44 0.013005 -171.4 0.56417 -80.603 1700 0.58537 -105.27 4.2754 179.89 0.015009 -169.91 0.45972 -86.097 1800 0.58777 -109.47 4.3029 167.18 0.019254 -164.09 0.35674 -85.284 1900 0.59151 -115.49 4.2368 156.26 0.024689 -158.71 0.28461 -75.109 1960 0.5879 -118.67 4.1202 149.05 0.029772 -167.86 0.27526 -66.353 2000 0.58103 -120.91 4.0174 143.56 0.03169 -172.44 0.28076 -60.399 2100 0.56299 -125.3 3.5892 135.43 0.036496 -176.25 0.3117 -54.613 2200 0.5465 -129.47 3.2602 130.49 0.038616 176.92 0.33593 -53.21 2300 0.52688 -132.31 3.1497 126.01 0.044776 169.97 0.353 -52.387 Table 9. MAX2656 Typical Scattering Parameters, High-Gain Mode, at RBIAS = 392 1%, VCC = +3.0V, TA = +25C 16 S12 PHASE (Degrees) S22 MAG S22 PHASE (Degrees) 0.006128 -171.3 0.87014 -41.226 0.005300 -159.81 0.85598 -46.123 -137.78 0.006555 -160.42 0.83153 -52.211 -142.29 0.004925 -157.18 0.79761 -59.51 3.7332 -149.1 0.006003 -166.66 0.73996 -67.659 -88.907 4.4738 -160.26 0.011463 -150.77 0.65201 -76.141 -93.587 4.7762 -172.86 0.013282 -145.52 0.53975 -82.014 0.59684 -100.54 4.9302 173.74 0.018755 -145.57 0.43867 -82.87 1800 0.58878 -104.67 4.8003 164.29 0.021457 -151.64 0.37327 -83.035 1900 0.5977 -109.52 4.8936 154.68 0.027487 -153.88 0.28342 -76.068 1960 0.60772 -112.82 4.5669 146.91 0.03057 -160.36 0.26886 -66.794 2000 0.59892 -115.77 4.654 141.44 0.033049 -161.14 0.27694 -59.226 2100 0.58053 -121.04 4.1382 133.34 0.03994 -167.55 0.31279 -52.821 2200 0.56181 -125.41 3.7644 128.16 0.04132 -175.02 0.34147 -52.217 2300 0.54051 -128.62 3.6083 123.89 0.046646 178.72 0.35893 -51.898 FREQ. (MHz) S11 MAG S11 PHASE (Degrees) S21 MAG S21 PHASE (Degrees) S12 MAG 1000 0.61065 -72.856 2.5553 -131.54 1100 0.57072 -76.554 2.5192 -136.87 1200 0.55098 -79.353 2.8016 1300 0.54175 -81.962 3.318 1400 0.54805 -84.946 1500 0.56671 1600 0.58825 1700 ______________________________________________________________________________________ 1575MHz/1900MHz Variable-IP3 Low-Noise Amplifiers FREQ. (MHz) S11 MAG S11 PHASE (Degrees) S21 MAG S21 PHASE (Degrees) S12 MAG S12 PHASE (Degrees) S22 MAG S22 PHASE (Degrees) 1000 0.56358 -88.715 0.84051 -149.67 0.015297 175.13 0.86855 -40.123 1100 0.52923 -92.674 0.75901 -155.8 0.018278 170.71 0.84663 -44.76 1200 0.51343 -96.676 0.778 -154.98 0.021931 171.79 0.81629 -50.425 1300 0.5009 -101.52 0.87339 -157.54 0.027437 166.27 0.77769 -56.827 1400 0.49349 -106.63 0.94312 -162.15 0.032736 164.54 0.71373 -63.478 1500 0.4779 -111.82 1.0788 -170.23 0.040246 156.47 0.63017 -68.924 1600 0.46179 -115.8 1.0969 -179.61 0.046081 148.9 0.54487 -70.976 1700 0.45273 -118.92 1.1205 171.9 0.048446 143.14 0.48753 -71.609 1800 0.44199 -121.58 1.0946 163.88 0.050701 135.71 0.43529 -69.697 1900 0.4371 -124.48 1.0608 159.43 0.050819 133.61 0.40827 -65.547 1960 0.4417 -125.66 1.0466 155.48 0.053261 128.84 0.3992 -64.245 2000 0.43465 -127.43 1.0571 152.57 0.051961 126.55 0.39624 -63.625 2100 0.42839 -129.89 1.0048 147.54 0.053704 124.59 0.40737 -59.963 2200 0.42111 -132.42 0.96251 144.32 0.055581 121.96 0.42112 -59.523 2300 0.41587 -134.52 0.98483 140.56 0.06043 122.24 0.4279 -59.786 Table 11. MAX2656 Typical Scattering Parameters, Low-Gain Mode, at RBIAS = 715 1%, VCC = +3.0V, TA = +25C FREQ. (MHz) S11 MAG S11 PHASE (Degrees) S21 MAG S21 PHASE (Degrees) S12 MAG S12 PHASE (Degrees) S22 MAG S22 PHASE (Degrees) 1000 0.6056 -88.657 0.75982 -146.06 0.015889 178.42 0.86446 -40.165 1100 0.5702 -93.113 0.68752 -152.25 0.017232 171.4 0.84454 -44.793 1200 0.55247 -97.548 0.70776 -151.47 0.021948 170.96 0.81898 -50.576 1300 0.53571 -102.64 0.80000 -153.99 0.025791 167.82 0.77568 -56.997 1400 0.52488 -107.75 0.86782 -159.15 0.031885 165.39 0.71084 -63.637 1500 0.5104 -113.16 0.99703 -167.72 0.040072 153.19 0.6273 -68.898 1600 0.49122 -116.88 1.0021 -177.05 0.043433 146.52 0.55193 -71.01 1700 0.4807 -120.74 1.0431 174.8 0.045797 137.82 0.47844 -73.067 1800 0.46643 -123.25 1.0207 166.35 0.048667 132.14 0.42493 -69.56 1900 0.46269 -126.4 0.99176 161.64 0.048765 128.39 0.40306 -65.393 1960 0.47755 -125.65 0.92385 157.45 0.05108 127.14 0.38593 -64.729 2000 0.45517 -129.51 0.98886 154.71 0.051638 122.9 0.39072 -63.064 2100 0.44712 -131.82 0.93888 149.53 0.052747 121.07 0.39978 -59.492 2200 0.44352 -134.29 0.90581 146.34 0.052671 122.67 0.41386 -59.001 2300 0.43357 -136.57 0.92722 142.19 0.057307 116.37 0.42251 -59.433 ______________________________________________________________________________________ 17 MAX2654/MAX2655/MAX2656 Table 10. MAX2656 Typical Scattering Parameters, Low-Gain Mode, at RBIAS = 511 1%, VCC = +3.0V, TA = +25C MAX2654/MAX2655/MAX2656 1575MHz/1900MHz Variable-IP3 Low-Noise Amplifiers Table 12. MAX2656 Typical Scattering Parameters, Low-Gain Mode, at RBIAS = 392 1%, VCC = +3.0V, TA = +25C FREQ. (MHz) S11 MAG S11 PHASE (Degrees) S21 MAG S21 PHASE (Degrees) S12 MAG S12 PHASE (Degrees) S22 MAG S22 PHASE (Degrees) 1000 0.53264 -88.293 0.88824 -152.39 0.016235 -178.61 0.86648 -40.242 1100 0.50072 -91.951 0.7982 -158.26 0.017245 173.56 0.84349 -44.872 1200 0.48919 -95.727 0.81624 -157.63 0.021876 174.25 0.81736 -50.593 1300 0.47763 -100.56 0.9124 -159.79 0.024819 169.5 0.77697 -56.992 1400 0.46996 -105.52 0.97835 -164.35 0.031537 165.94 0.7125 -63.162 1500 0.45962 -110.53 1.1147 -172.07 0.039354 157.02 0.63149 -68.884 1600 0.44558 -114.16 1.1435 179.16 0.043858 150.97 0.54309 -71.323 1700 0.43752 -117.82 1.1673 170.03 0.048587 142.5 0.48004 -70.756 1800 0.42628 -120.34 1.1355 162.29 0.051739 135.63 0.44669 -68.481 1900 0.42389 -123.02 1.1015 157.68 0.053776 132.1 0.41378 -66.261 1960 0.43163 -123.7 1.3169 152.69 0.052288 130.37 0.39665 -64.55 2000 0.42186 -126.21 1.0881 150.97 0.053244 125 0.39825 -63.294 2100 0.41708 -128.29 1.0382 146.08 0.055868 126.22 0.40867 -59.626 2200 0.41316 -131.21 0.98792 143.08 0.055845 123.81 0.4238 -59.446 2300 0.40531 -132.94 1.0068 139.47 0.061111 121.9 0.42905 -59.37 Table 13. MAX2654 Typical Noise Parameters, VCC = +3.0V, TA = +25C 18 FREQUENCY (MHz) NFMIN (dB) IoptI opt (ANGLE) RN () 1000 0.979185 0.325805 63.6899 65.3207 1100 1.00543 0.311346 70.7686 60.4145 1200 1.0429 0.299983 78.5972 55.7724 1300 1.09161 0.291978 87.1956 51.3341 1400 1.15308 0.288025 96.5545 47.0509 1500 1.22964 0.289009 106.565 42.8944 1575 1.29821 0.29339 114.342 39.8666 1600 1.32323 0.295542 116.952 38.8794 1620 1.34399 0.297509 119.036 38.0995 1700 1.4328 0.307178 127.265 35.0936 1800 1.55051 0.321605 136.997 31.7107 1900 1.66007 0.334857 145.771 28.9489 2000 1.74337 0.343223 153.463 26.9638 2100 1.79294 0.345512 160.179 25.7497 2200 1.81624 0.343289 166.128 25.1452 2300 1.82749 0.339207 171.504 24.9322 ______________________________________________________________________________________ 1575MHz/1900MHz Variable-IP3 Low-Noise Amplifiers MAX2654/MAX2655/MAX2656 Table 14. MAX2655 Typical Noise Parameters, RBIAS = 511 1%, VCC = +3.0V, TA = +25C FREQUENCY (MHz) NFMIN (dB) 1000 1.07078 0.20268 58.6096 61.4167 1100 1.1004 0.185133 66.3785 57.7698 1200 1.14332 0.17169 75.3428 54.4141 1300 1.20144 0.163399 85.5832 51.241 1400 1.27902 0.161846 96.8769 48.1459 1500 1.38209 0.168551 108.539 45.0343 1575 1.47957 0.179266 116.958 42.6584 1600 1.51609 0.183813 119.635 41.8603 1620 1.54671 0.187747 121.72 41.2213 1700 1.67956 0.205317 129.542 38.6947 1800 1.85425 0.227554 138.264 35.7715 1900 2.00371 0.243698 146.235 33.4173 2000 2.09593 0.249742 153.934 31.8644 2100 2.13004 0.246809 161.641 31.1189 2200 2.13006 0.239032 169.387 31.0069 2300 2.12127 0.230293 177.009 31.3045 IoptI opt (ANGLE) RN () Table 15. MAX2655 Typical Noise Parameters, RBIAS = 357 1%, VCC = +3.0V, TA = +25C FREQUENCY (MHz) NFMIN (dB) IoptI opt (ANGLE) RN () 1000 1.09982 0.148395 58.9284 58.1506 1100 1.12955 0.133791 67.8012 55.2392 1200 1.17248 0.12367 78.2767 52.5393 1300 1.23093 0.119347 90.2698 49.9446 1400 1.30945 0.122497 103.037 47.3479 1500 1.4141 0.134308 115.29 44.6485 1575 1.513 0.148721 123.496 42.522 1600 1.54997 0.154421 126.008 41.7955 1620 1.58092 0.159239 127.94 41.2099 1700 1.71459 0.179965 135.058 38.8633 1800 1.88848 0.205269 142.995 36.1035 1900 2.03494 0.223676 150.524 33.8713 2000 2.12324 0.231506 158.139 32.4267 2100 2.1538 0.230145 166.018 31.7928 2200 2.15105 0.223842 174.051 31.7989 2300 2.14016 0.216468 181.947 32.2145 ______________________________________________________________________________________ 19 MAX2654/MAX2655/MAX2656 1575MHz/1900MHz Variable-IP3 Low-Noise Amplifiers Table 16. MAX2655 Typical Noise Parameters, RBIAS = 698 1%, VCC = +3.0V, TA = +25C FREQUENCY (MHz) NFMIN (dB) IoptI opt (ANGLE) RN () 1000 1.07022 0.252072 59.5039 63.9045 1100 1.09989 0.232117 66.7513 59.6017 1200 1.1435 0.216167 74.9793 55.6721 1300 1.2025 0.205039 84.2738 52.0034 1400 1.28093 0.200132 94.5649 48.4913 1500 1.38483 0.202967 105.469 45.0448 1575 1.48313 0.210624 113.637 42.4731 1600 1.52003 0.214164 116.293 41.62 1620 1.551 0.217306 118.382 40.9407 1700 1.68587 0.231911 126.349 38.2818 1800 1.86477 0.251081 135.356 35.2455 1900 2.01955 0.2649 143.506 32.8111 2000 2.1163 0.269182 151.19 31.186 2100 2.15311 0.264831 158.724 30.3614 2200 2.15452 0.255836 166.217 30.161 2300 2.14655 0.246007 173.591 30.3681 Table 17. MAX2656 Typical Noise Parameters, RBIAS = 511 1%, VCC = +3.0V, TA = +25C 20 FREQUENCY (MHz) NFMIN (dB) IoptI opt (ANGLE) RN () 1000 1.19551 0.169443 44.0607 63.6454 1100 1.25513 0.160031 50.0233 61.2689 1200 1.36496 0.157156 53.9632 60.0078 1300 1.41944 0.139411 55.9695 58.3406 1400 1.42267 0.116105 64.9694 55.1066 1500 1.46779 0.104328 78.4081 52.1186 1600 1.54085 0.100413 92.5998 49.5511 1700 1.62591 0.100408 105.865 47.3525 1800 1.71232 0.101354 117.69 45.5365 1900 1.79336 0.101439 128.291 44.1212 1960 1.83815 0.100789 134.246 43.4616 2000 1.86641 0.10007 138.099 43.0969 2100 1.93225 0.0974895 147.452 42.4256 2200 1.99354 0.0942623 156.495 42.0541 2300 2.05347 0.0909155 165.19 41.9247 ______________________________________________________________________________________ 1575MHz/1900MHz Variable-IP3 Low-Noise Amplifiers MAX2654/MAX2655/MAX2656 Table 18. MAX2656 Typical Noise Parameters, RBIAS = 392 1%, VCC = +3.0V, TA = +25C FREQUENCY (MHz) NFMIN (dB) IoptI opt (ANGLE) RN () 1000 1.25828 0.127169 43.4181 60.0914 1100 1.31712 0.119749 49.6564 58.328 1200 1.42071 0.118918 53.0395 57.6261 1300 1.47047 0.102868 54.249 56.3473 1400 1.47793 0.0808445 65.2714 53.4808 1500 1.52693 0.0714433 82.9841 50.8759 1600 1.60271 0.07102 101.079 48.6601 1700 1.68966 0.0747457 116.687 46.766 1800 1.77731 0.0790839 129.705 45.2077 1900 1.85912 0.082153 141.03 44.0114 1960 1.90423 0.0831517 147.358 43.4686 2000 1.93266 0.0834911 151.457 43.177 2100 1.99887 0.0834491 161.414 42.6749 2200 2.06055 0.0826143 171.004 42.457 2300 2.12098 0.081456 180.109 42.4679 Table 19. MAX2656 Typical Noise Parameters, RBIAS = 715 1%, VCC = +3.0V, TA = +25C FREQUENCY (MHz) NFMIN (dB) 1000 1.13783 0.224059 45.2905 68.1525 1100 1.2001 0.212085 51.1614 64.8648 1200 1.32167 0.206499 55.7433 62.7276 1300 1.38403 0.186443 58.447 60.5143 1400 1.38075 0.161577 66.0016 56.8728 1500 1.42109 0.147473 76.7421 53.4273 1600 1.49177 0.140468 88.2322 50.4268 1700 1.57596 0.137104 99.3829 47.8521 1800 1.66249 0.134825 109.699 45.7189 1900 1.74421 0.131957 119.148 44.0357 1960 1.78956 0.129654 124.484 43.2336 2000 1.81821 0.12787 127.937 42.78 2100 1.88506 0.122729 136.303 41.9037 2200 1.94729 0.117055 144.391 41.3473 2300 2.00801 0.111392 152.221 41.0509 IoptI opt (ANGLE) RN () ______________________________________________________________________________________ 21 1575MHz/1900MHz Variable-IP3 Low-Noise Amplifiers SC70, 6L.EPS MAX2654/MAX2655/MAX2656 Package Information 22 ______________________________________________________________________________________