DATA SHEET SKY67021-396LF: 0.6-1.2 GHz High Linearity, Active Bias Low-Noise Amplifier Applications * GSM, CDMA, WCDMA, TD-SCDMA cellular infrastructure * Ultra low-noise systems * Balanced, single-ended low-noise amplifier designs Features * Extended operating temperature range: -40 C to +100 C * Low Noise Figure: 0.6 dB @ 0.9 GHz * Excellent IIP3 performance: +22.5 dBm @ 0.9 GHz Figure 1. SKY67021-396LF Block Diagram * Gain: 17.5 dB @ 0.9 GHz * Adjustable supply current * Integrated enable circuitry * Temperature and process-stable active bias * Miniature DFN (8-pin, 2 x 2 mm) package (MSL1 @ 260 C per JEDEC J-STD-020) Description The SKY67021-396LF is GaAs, pHEMT Low-Noise Amplifier (LNA) with an active bias and high linearity performance. The advanced GaAs pHEMT enhancement mode process provides good return loss, low noise, and high linearity performance. The internal active bias circuitry provides stable performance over temperature and process variation. The device offers the ability to externally adjust supply current and gain. Supply voltage is applied to the RFOUT/VDD pin through an RF choke inductor. Pin 3 (VBIAS) should be connected to RFOUT/VDD through an external resistor to control the supply current. The RFIN and RFOUT/VDD pins should be DC blocked to ensure proper operation. The SKY67021-396LF operates in the frequency range of 0.6 to 1.2 GHz. For higher frequency operation, the pin-compatible SKY67022-396LF or SKY67023-396LF should be used. The LNA is manufactured in a compact, 2 x 2 mm, 8-pin Dual Flat No-Lead (DFN) package. A functional block diagram is shown in Figure 1. The pin configuration and package are shown in Figure 2. Signal pin assignments and functional pin descriptions are provided in Table 1. Figure 2. SKY67021-396LF Pinout - 8-Pin DFN (Top View) Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 202677A * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice * March 6, 2013 1 DATA SHEET * SKY67021-396LF HIGH LINEARITY, ACTIVE BIAS LNA Table 1. SKY67021-396LF Signal Descriptions Pin # Name Description Pin # Name Description 1 N/C No connection. May be connected to ground with no change in performance. 5 N/C No connection. May be connected to ground with no change in performance. 2 RFIN RF input. DC blocking capacitor required. 6 ENABLE Enable pin. Active "low" (0 V) = amplifier on state. 3 VBIAS Bias for 1st stage amplifier. External resistor sets current consumption. 7 RFOUT/VDD RF output. Apply VDD through RF choke inductor. DC blocking capacitor required. 4 N/C No connection. May be connected to ground with no change in performance. 8 N/C No connection. May be connected to ground with no change in performance. Table 2. SKY67021-396LF Absolute Maximum Ratings Parameter Symbol Minimum Typical 5.0 Maximum Units Supply voltage VDD RF input power PIN 5.5 V +20 dBm Channel temperature TCH Thermal resistance JC Storage temperature TSTG -65 +25 +150 C Operating temperature TA -55 +25 +100 C Electrostatic Discharge: Charged Device Model (CDM), Class 4 Human Body Model (HBM), Class 1A Machine Model (MM), Class A ESD +150 C C/W 56.4 1000 250 30 V V V Notes: Exposure to maximum rating conditions for extended periods may reduce device reliability. There is no damage to device with only one parameter set at the limit and all other parameters set at or below their nominal value. Exceeding any of the limits listed here may result in permanent damage to the device. Thermal resistance = 56.4 C/W @ 5 V bias. CAUTION: Although this device is designed to be as robust as possible, Electrostatic Discharge (ESD) can damage this device. This device must be protected at all times from ESD. Static charges may easily produce potentials of several kilovolts on the human body or equipment, which can discharge without detection. Industry-standard ESD precautions should be used at all times. Electrical and Mechanical Specifications The absolute maximum ratings of the SKY67021-396LF are provided in Table 2. Electrical specifications are provided in Table 3. Typical performance characteristics of the SKY67021-396LF are illustrated in Figures 3 through 28. Table 4 provides noise source pull information versus frequency. Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 2 March 6, 2013 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice * 202677A DATA SHEET * SKY67021-396LF HIGH LINEARITY, ACTIVE BIAS LNA Table 3. SKY67021-396LF Electrical Specifications (Note 1, 2) (VDD = 5 V, IDD = 100 mA, TA = +25 C, PIN = -20 dBm, Characteristic Impedance [ZO] = 50 , Unless Otherwise Noted) Parameter Symbol Test Condition Min Typical Max Units 0.60 0.75 dB 18.5 RF Specifications Noise Figure (Note 3) NF @ 0.9 GHz Small signal gain |S21| @ 0.9 GHz 16.5 17.5 Input return loss |S11| @ 0.9 GHz 11.0 12.5 dB Output return loss |S22| @ 0.9 GHz 8.0 9.5 dB Reverse isolation |S12| @ 0.9 GHz 27 29 dB 3 Order Input Intercept Point IIP3 @ 0.9 GHz, f = 1 MHz, PIN = -20 dBm/tone +20.8 +22.5 dBm 3rd Order Output Intercept Point OIP3 @ 0.9 GHz, f = 1 MHz, PIN = -20 dBm/tone +38.3 +40.0 dBm 1 dB Input Compression Point IP1dB @ 0.9 GHz +3.4 +5.2 dBm 1 dB Output Compression Point OP1dB @ 0.9 GHz +20.0 +21.7 dBm Stability (Note 4) , 1 Up to 18 GHz, -40 C to +85 C >1 - rd dB DC Specifications Supply voltage VDD Quiescent supply current IDD 5.0 Amplifier enable off current (logic "high") IEN Enable rise time TR @ 0.9 GHz 250 500 ns Enable fall time TF @ 0.9 GHz 250 500 ns Set with external resistor V 85 100 115 mA 700 900 1100 A Note 1: Performance is guaranteed only under the conditions listed in this Table. Note 2: Circuit topology optimized for balanced configuration with best IIP3 and NF performance. Note 3: Loss from the input SMA connector and Evaluation Board up to component M1 has not been de-embedded from the NF measurement. Note 4: Applies to typical application circuit and components shown in Figure 31. Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 202677A * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice * March 6, 2013 3 DATA SHEET * SKY67021-396LF HIGH LINEARITY, ACTIVE BIAS LNA Typical Performance Characteristics (VDD = 5 V, IDD = 100 mA, TA = +25 C, PIN = -20 dBm, Characteristic Impedance [ZO] = 50 , Unless Otherwise Noted) Figure 3. Broadband Gain Response vs Frequency Over Temperature Figure 4. Narrowband Gain Response vs Frequency Over Temperature Figure 5. Broadband Input Return Loss vs Frequency Over Temperature Figure 6. Narrowband Input Return Loss vs Frequency Over Temperature Figure 7. Broadband Reverse Isolation vs Frequency Over Temperature Figure 8. Narrowband Reverse Isolation vs Frequency Over Temperature Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 4 March 6, 2013 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice * 202677A DATA SHEET * SKY67021-396LF HIGH LINEARITY, ACTIVE BIAS LNA Figure 9. Broadband Output Return Loss vs Frequency Over Temperature Figure 10. Narrowband Output Return Loss vs Frequency Over Temperature Figure 11. Noise Figure vs Frequency Over Temperature Figure 12. IIP3 vs Input Power Over Temperature @ 600 MHz (PIN = -20 dBm, Tone Spacing = 1 MHz) Figure 13. IIP3 vs Input Power Over Temperature @ 700 MHz (PIN = -20 dBm, Tone Spacing = 1 MHz) Figure 14. IIP3 vs Input Power Over Temperature @ 800 MHz (PIN = -20 dBm, Tone Spacing = 1 MHz) Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 202677A * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice * March 6, 2013 5 DATA SHEET * SKY67021-396LF HIGH LINEARITY, ACTIVE BIAS LNA Figure 15. IIP3 vs Input Power Over Temperature @ 900 MHz (PIN = -20 dBm, Tone Spacing = 1 MHz) Figure 16. IIP3 vs Input Power Over Temperature @ 1000 MHz (PIN = -20 dBm, Tone Spacing = 1 MHz) Figure 17. IIP3 vs Input Power Over Temperature @ 1200 MHz (PIN = -20 dBm, Tone Spacing = 1 MHz) Figure 18. IIP3 vs Frequency Over Temperature (PIN = -20 dBm, Tone Spacing = 1 MHz) Figure 19. Gain vs Input Power Over Temperature @ 600 MHz Figure 20. Gain vs Input Power Over Temperature @ 700 MHz Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 6 March 6, 2013 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice * 202677A DATA SHEET * SKY67021-396LF HIGH LINEARITY, ACTIVE BIAS LNA Figure 21. Gain vs Input Power Over Temperature @ 800 MHz Figure 22. Gain vs Input Power Over Temperature @ 900 MHz Figure 23. Gain vs Input Power Over Temperature @ 1000 MHz Figure 24. Gain vs Input Power Over Temperature @ 1200 MHz Figure 25. Stability Factor () vs Frequency Over Temperature Figure 26. Stability Factor (1) vs Frequency Over Temperature Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 202677A * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice * March 6, 2013 7 DATA SHEET * SKY67021-396LF HIGH LINEARITY, ACTIVE BIAS LNA Figure 27. Load Pull, @ 5 V, 900 MHz, 100 mA Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 8 March 6, 2013 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice * 202677A DATA SHEET * SKY67021-396LF HIGH LINEARITY, ACTIVE BIAS LNA Table 4. Noise Parameters vs Frequency @ 5.0 V and 100 mA opt Frequency (GHz) Minimum Noise Figure (FMIN) (dB) Noise Resistance (RN) () Phase Associated Gain (dB) Maximum Gain (GMAX) (dB) Magnitude 0.80 0.5571 0.0600 0.1286 129.21 18.8608 19.7254 0.84 0.3977 0.1264 0.1201 72.63 18.8469 19.3559 0.89 0.543 0.0414 0.1575 111.37 18.1270 18.9171 1.20 0.7077 0.0667 0.1636 107.57 15.8561 16.6599 1.42 0.8033 0.0777 0.1466 110.34 14.5550 15.4004 1.52 0.8732 0.0767 0.1751 130.29 13.8350 14.8953 1.76 1.0127 0.1047 0.1240 122.01 12.8532 13.8256 1.84 1.1337 0.1062 0.1113 147.04 12.3242 13.5113 1.92 1.1686 0.1132 0.1137 134.44 12.1251 13.2098 1.98 1.232 0.1021 0.1260 163.51 11.6427 12.9939 2.00 1.3361 0.2648 0.1212 74.78 12.1585 12.9206 2.38 1.5989 0.1143 0.1302 158.37 10.4524 11.7369 2.52 1.6619 0.1667 0.1109 156.50 10.1114 11.3724 2.60 1.7366 0.1817 0.0974 156.70 9.9104 11.1835 2.70 1.6845 0.1032 0.1529 -165.66 9.2704 10.9525 3.00 2.1342 0.1874 0.0978 171.43 8.9475 10.3251 3.60 2.6314 0.2626 0.0816 172.61 6.9070 8.3274 4.00 2.9366 0.3237 0.1187 -160.48 7.3181 8.8760 5.00 3.7549 0.4659 0.2157 -156.72 6.3847 8.3182 6.00 4.5836 0.4105 0.3645 -149.11 5.9685 8.3084 7.00 5.4265 0.7168 0.3627 -157.54 5.3432 8.5428 Evaluation Board Description Package and Handling Information The SKY67021-396LF Evaluation Board is used to test the performance of the SKY67021-396LF LNA. An assembly drawing for the Evaluation Board is shown in Figure 28. The layer detail is provided in Figure 29. An Evaluation Board schematic diagram is provided in Figure 30. Table 5 provides the Bill of Materials (BOM) list for Evaluation Board components. Instructions on the shipping container label regarding exposure to moisture after the container seal is broken must be followed. Otherwise, problems related to moisture absorption may occur when the part is subjected to high temperature during solder assembly. Package Dimensions The PCB layout footprint for the SKY67021-396LF is provided in Figure 31. Typical case markings are shown in Figure 32. Package dimensions for the 8-pin DFN are shown in Figure 33, and tape and reel dimensions are provided in Figure 34. THE SKY67021-396LF is rated to Moisture Sensitivity Level 1 (MSL1) at 260 C. It can be used for lead or lead-free soldering. For additional information, refer to the Skyworks Application Note, Solder Reflow Information, document number 200164. Care must be taken when attaching this product, whether it is done manually or in a production solder reflow environment. Production quantities of this product are shipped in a standard tape and reel format. Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 202677A * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice * March 6, 2013 9 DATA SHEET * SKY67021-396LF HIGH LINEARITY, ACTIVE BIAS LNA Figure 28. SKY67021-396LF Evaluation Board Assembly Diagram Figure 29. Layer Detail Physical Characteristics Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 10 March 6, 2013 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice * 202677A DATA SHEET * SKY67021-396LF HIGH LINEARITY, ACTIVE BIAS LNA Figure 30. SKY67021-396LF Evaluation Board Schematic Table 5. SKY67021-396LF Evaluation Board Bill of Materials Component Type Size Value (5 V @ 100 mA) 0 Manufacturer Panasonic Part # M1 Resistor 0402 M2 DNI 0402 M3 Capacitor 0402 6 pF Murata GJM1555C1H6R0CB01 M4 Inductor 0402 12 nH Coilcraft 0402HP-12NX_GLU M5 Capacitor 0402 68 pF Murata GRM1555C1H680JZ01 M6 DNI 0402 M7 Resistor 0402 3.6 k Panasonic ERJ-2GEJ362X M8 Capacitor 0402 0.1 F Murata GRM155R71A104KA01 M9 Capacitor 0402 1000 pF M10 DNI 0402 M11 Inductor 0402 27 nH Murata LQG15HN27NJ02D M12 Capacitor 0402 10 pF Murata GRM1555C1H100JZ01D M13 Capacitor 0402 1000 pF Murata GRM1555C1H102JA01 M14 Resistor 0402 0 M15 DNI 0402 M16 Inductor 0402 4.3 nH M17 Capacitor 0402 82 pF M18 DNI 0402 - - - - Murata - - GRM1555C1H102JA01 - Panasonic - - ERJ-2GEOROOX - Murata - LQG15HN4N3S02D Murata - ERJ-2GEOROOX - GRM1555C1H820JA01 - - Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 202677A * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice * March 6, 2013 11 DATA SHEET * SKY67021-396LF HIGH LINEARITY, ACTIVE BIAS LNA Figure 31. SKY67021-396LF PCB Layout Footprint (Top View) Figure 32. Typical Case Markings (Top View) Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 12 March 6, 2013 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice * 202677A DATA SHEET * SKY67021-396LF HIGH LINEARITY, ACTIVE BIAS LNA Figure 33. SKY67021-396LF 8-Pin DFN Package Dimensions Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 202677A * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice * March 6, 2013 13 DATA SHEET * SKY67021-396LF HIGH LINEARITY, ACTIVE BIAS LNA Figure 34. SKY67021-396LF Tape and Reel Dimensions Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 14 March 6, 2013 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice * 202677A DATA SHEET * SKY67021-396LF HIGH LINEARITY, ACTIVE BIAS LNA Ordering Information Model Name SKY67021-396LF LNA Manufacturing Part Number SKY67021-396LF Evaluation Board Part Number SKY67021-396LF-EVB Copyright (c) 2013 Skyworks Solutions, Inc. All Rights Reserved. Information in this document is provided in connection with Skyworks Solutions, Inc. ("Skyworks") products or services. These materials, including the information contained herein, are provided by Skyworks as a service to its customers and may be used for informational purposes only by the customer. Skyworks assumes no responsibility for errors or omissions in these materials or the information contained herein. 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Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 202677A * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice * March 6, 2013 15 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Skyworks: SKY67021-396LF