HMC539ALP3/539ALP3E v01.0416 ATTENUATORS - DIGITAL - SMT 0.25 dB LSB GaAs MMIC 5-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, DC - 4 GHz Typical Applications Features The HMC539ALP3/539ALP3E is ideal for both RF and IF applications: 0.25 dB LSB Steps to 7.75 dB * Cellular Infrastructure Low Insertion Loss: 0.7 dB * ISM, MMDS, WLAN, WiMAX, WiBro High IP3: +62 dBm * Microwave Radio & VSAT Single Control Line Per Bit * Test Equipment and Sensors TTL/CMOS Compatible Control 0.05 dB Typical Step Error Single +3V to +5V Supply Functional Diagram 3x3 mm SMT Package General Description The HMC539ALP3/539ALP3E is a broadband 5-bit GaAs IC digital attenuator in a low cost leadless surface mount package. This single positive control line per bit digital attenuator utilizes an off chip AC ground capacitor for near DC operation, making it suitable for a wide variety of RF and IF applications. Covering DC to 4 GHz, the insertion loss is less than 0.7 dB typical. The attenuator bit values are 0.25 (LSB), 0.5, 1, 2, and 4 dB for a total attenuation of 7.75 dB. Attenuation accuracy is excellent at 0.05 dB typical step error. The attenuator also features a high IIP3 of +62 dBm. Five TTL/ CMOS control inputs are used to select each attenuation state. A single Vdd bias of +3V to +5V is required. Electrical Specifications, TA = +25 C, With Vdd = +5V & Vctl = 0/+5V (Unless Otherwise Noted) Parameter Frequency (GHz) Typ. Max. Units DC - 1.5 GHz 1.5 - 3.0 GHz 3.0 - 4.0 GHz 0.7 1.0 1.3 1.0 1.3 1.7 dB dB dB DC - 4 GHz 7.75 dB DC - 3 GHz 3.0 - 4.0 GHz 27 25 dB dB DC - 3 GHz 3.0 - 4.0 GHz (0.2 + 2% of Atten. Setting) Max. (0.2 + 4% of Atten. Setting) Max. dB dB Input Power for 0.1 dB Compression 0.1 - 4.0 GHz 32 dBm Input Third Order Intercept Point (Two-Tone Input Power= 15 dBm Each Tone) 0.1 - 4.0 GHz 62 dBm 45 52 ns ns Insertion Loss Attenuation Range Return Loss (RF1 & RF2, All Atten. States) Attenuation Accuracy: (Referenced to Insertion Loss) All States Switching Characteristics tRISE, tFALL (10/90% RF) tON, tOFF (50% CTL to 10/90% RF) 1 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. DC - 4 GHz Min. For price, delivery, and to place orders: Analog Devices, Inc., One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106 Phone: 781-329-4700 * Order online at www.analog.com Application Support: Phone: 1-800-ANALOG-D HMC539ALP3/539ALP3E v01.0416 0.25 dB LSB GaAs MMIC 5-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, DC - 4 GHz Return Loss RF1, RF2 Insertion Loss (Only Major States are Shown) -9 RETURN LOSS (dB) INSERTION LOSS (dB) -0.5 -1 -1.5 -2 -18 -27 -36 -2.5 -3 -45 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 0 0.5 1 1.5 FREQUENCY (GHz) +25 C +85 C 3 3.5 4 4.5 1dB 2dB 4 dB 7.75 dB Bit Error vs. Attenuation State (Only Major States are Shown) 0 0.5 -2 0.25 BIT ERROR (dB) NORMALIZED ATTENUATION (dB) 2.5 IL 0.25 dB 0,.5 dB -40 C Normalized Attenuation -4 -6 0 -0.25 -8 -10 -0.5 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 0 1 2 0.25 dB 0.5 dB 3 4 5 6 7 8 ATTENUATION STATE (dB) FREQUENCY (GHz) 1 dB 2 dB 40 MHz 100 MHz 500 MHz 4 dB 7.75 dB Bit Error vs. Frequency 1 GHz 2 GHz 3 GHz 4 GHz Relative Phase vs. Frequency (Only Major States are Shown) (Only Major States are Shown) 0.35 20 15 RELATIVE PHASE (deg) 0.25 BIT ERROR (dB) 2 FREQUENCY (GHz) ATTENUATORS - DIGITAL - SMT 0 0 0.15 0.05 -0.05 -0.15 10 5 0 -5 -10 -15 -0.25 -20 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 0 0.5 1 FREQUENCY (GHz) 0.25 dB 0.5 dB 1 dB 2 dB 1.5 2 2.5 3 3.5 4 4.5 FREQUENCY (GHz) 4 dB 7.75 dB 0.25 dB 0.5 dB 1 dB 2 dB 4 dB 7.75 dB For price, delivery, and to place orders: Analog Devices, Inc., One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106 Phone: 781-329-4700 * Order online at www.analog.com Application Support: Phone: 1-800-ANALOG-D 2 HMC539ALP3/539ALP3E v01.0416 0.25 dB LSB GaAs MMIC 5-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, DC - 4 GHz Step Error vs. Frequency (Only Major States are Shown) 1dB Input Compression Point INPUT COMPRESSION (dBm) 36 0.25 BIT ERROR (dB) ATTENUATORS - DIGITAL - SMT 0.35 0.15 0.05 -0.05 -0.15 -0.25 32 30 28 26 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 0 1 FREQUENCY (GHz) 0.25 dB 0.5 dB 2 3 4 FREQUENCY (GHz) 1 dB 2 dB 4 dB 7.75 dB Bias Voltage & Current Truth Table Control Voltage Input Vdd = +5.0 Vdc 10% Vdd (VDC) Idd (Typ.) (mA) +3.0 1.6 +5.0 1.7 Control Voltage 3 34 Attenuation State RF1 - RF2 V1 4 dB V2 2 dB V3 1 dB V4 0.5 dB V5 0.25 dB High High High High High Reference I.L. High High High High Low 0.25 dB High High High Low High 0.5 dB High High Low High High 1 dB High Low High High High 2 dB State Vdd = +3V Vdd = +5V Low High High High High 4 dB Low 0 to 0.8V @ <1 uA 0 to +1.1V @ 33uA Typ. Low Low Low Low Low 7.75 dB High 1.2 to 3.3V @ <1 uA 1.8V to +5.0V @ 33uA Typ. Any combination of the above states will provide an attenuation approximately equal to the sum of the bits selected. For price, delivery, and to place orders: Analog Devices, Inc., One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106 Phone: 781-329-4700 * Order online at www.analog.com Application Support: Phone: 1-800-ANALOG-D HMC539ALP3/539ALP3E v01.0416 0.25 dB LSB GaAs MMIC 5-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, DC - 4 GHz RF Input Power (DC - 4 GHz) +29 dBm (T = +85 C) Control Voltage Range (V1 to V5) -1V to Vdd +1V Bias Voltage (Vdd) +7.0 Vdc Channel Temperature 150 C Continuous Pdiss (T = 85 C) (derate 12.0 mW/C above 85 C) 0.551 W Thermal Resistance 118 C/W Storage Temperature -65 to +150 C Operating Temperature -40 to +85 C ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS Outline Drawing ATTENUATORS - DIGITAL - SMT Absolute Maximum Ratings Package Information Part Number Package Body Material Lead Finish MSL Rating HMC539ALP3 Low Stress Injection Molded Plastic Sn/Pb solder MSL3 [1] HMC539ALP3E RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL3 [2] Package Marking [3] H539A XXXX H539A XXXX [1] Max peak reflow temperature of 235 C [2 Max peak reflow temperature of 260 C [3] 4-Digit lot number XXXX For price, delivery, and to place orders: Analog Devices, Inc., One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106 Phone: 781-329-4700 * Order online at www.analog.com Application Support: Phone: 1-800-ANALOG-D 4 HMC539ALP3/539ALP3E v01.0416 0.25 dB LSB GaAs MMIC 5-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, DC - 4 GHz ATTENUATORS - DIGITAL - SMT Pin Descriptions Pin Number Function Description 1 Vdd Supply Voltage. 2, 11 RF1, RF2 This pin is DC coupled and matched to 50 Ohm. Blocking capacitors are required. Select value based on lowest frequency of operation. 3, 9, 10 N/C These pins should be connected to PCB RF ground to maximize performance. 4-8 ACG1 - ACG5 External capacitor to ground is required. Select value for lowest frequency of operation. Place capacitor as close to pins as possible. 12 - 16 V1 - V5 See truth table and control voltage table. GND Package bottom has an exposed metal paddle that must be connected to RF Ground. Interface Schematic Application Circuit Recommended Component Values 5 C1, C2 100 pF 10% C3 1,000 pF 10% C4 330 pF 10% R1 - R5 100 Ohm 10% For price, delivery, and to place orders: Analog Devices, Inc., One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106 Phone: 781-329-4700 * Order online at www.analog.com Application Support: Phone: 1-800-ANALOG-D HMC539ALP3/539ALP3E v01.0416 0.25 dB LSB GaAs MMIC 5-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, DC - 4 GHz ATTENUATORS - DIGITAL - SMT Evaluation PCB List of Materials for Evaluation PCB EV1HC539ALP3 [1] Item Description J1, J2 PCB Mount SMA Connector J3 - J9 DC Pin C1, C2 100 pF Capacitor, 0402 Pkg. C3 1000 pF Capacitor, 0402 Pkg. C4 330 pF Capacitor, 0402 Pkg. R1 - R5 100 Ohm Resistor 0402 U1 HMC539ALP3/539ALP3E Digital Attenuator PCB [2] 110076 Evaluation PCB The circuit board used in the application should use RF circuit design techniques. Signal lines should have 50 Ohm impedance while the package ground leads and exposed paddle should be connected directly to the ground plane similar to that shown. A sufficient number of via holes should be used to connect the top and bottom ground planes. The evaluation circuit board shown is available from Analog Devices Inc upon request. [1] Reference this number when ordering complete evaluation PCB [2] Circuit Board Material: Rogers 4350 For price, delivery, and to place orders: Analog Devices, Inc., One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106 Phone: 781-329-4700 * Order online at www.analog.com Application Support: Phone: 1-800-ANALOG-D 6