ADL5321

Preliminary Technical Data FEATURES Operation from 2.3 GHz to 4.0 GHz Gain of +14 dB at 2600 MHz OIP3 of +40 dBm at 2600 MHz P1dB of +25 dBm at 2600 MHz Noise figure of 4 dB at 2600 MHz Power supply of 5 V Power supply current of 84 mA Internal active biasing Thermally efficient SOT−89 package The ADL5320 is a 400 MHz to 2700 MHz driver ESD rating of ±4 kV (Class 3A) 2.3 GHz to 4.0 GHz RF Driver Amplifier ADL5321 FUNCTIONAL BLOCK DIAGRAM GND (2) ADL5321 Bias 1 GENERAL DESCRIPTION The ADL5321 is a broadband, linear driver RF amplifier that operates at frequencies from 2.3 GHz to 4.0 GHz. The device can be used in a wide variety of wired and wireless applications including LTE, WiMAX, WiBro, and WLL. The ADL5321 operates with a 5V supply voltage, while only consuming 84 mA of current. The ADL5321 is fabricated on a GaAs HBT process. The device is packaged in a low-cost SOT−89 that uses an exposed paddle for excellent thermal impedance. It operates from −40°C to +85°C, and a fully populated evaluation board is available. The ADL5320 is a companion part that offers lower frequency operation from 400 MHz to 2700 MHz. 2 3 RFin GND RFout Figure 1. Rev. PrB 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. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©2008 Analog Devices, Inc. All rights reserved. ADL5321 TABLE OF CONTENTS Features .............................................................................................. 1 General Description ......................................................................... 1 Functional Block Diagram .............................................................. 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Absolute Maximum Ratings............................................................ 4 ESD Caution.................................................................................. 4 Preliminary Technical Data Pin Configuration and Function Descriptions..............................5 Typical Performance Characteristics ..............................................6 Evaluation Board ...............................................................................7 Outline Dimensions ..........................................................................9 Ordering Guide .............................................................................9 REVISION HISTORY 1/08—Rev. PrB: Preliminary Version Rev. PrB | Page 2 of 9 Preliminary Technical Data SPECIFICATIONS VCC = 5 V and TA = 25°C, unless otherwise noted. Table 1. Parameter OVERALL FUNCTION Frequency Range FREQUENCY = 2600 MHz Gain vs. Frequency vs. Temperature vs. Supply Output 1 dB Compression Point Output Third-Order Intercept Noise Figure Input Return Loss (S11) Output Return Loss (S22) Reverse Isolation (S12) FREQUENCY = 3700 MHz Gain vs. Frequency vs. Temperature vs. Supply Output 1 dB Compression Point Output Third-Order Intercept Noise Figure Input Return Loss (S11) Output Return Loss (S22) Reverse Isolation (S12) POWER INTERFACE Supply Voltage Supply Current vs. Temp Power Dissipation Conditions Min 2.3 Typ Max 4.0 ADL5321 Unit GHz ± 50 MHz −40°C ≤ TA ≤ +85°C 4.75 V to 5.25 V ∆f = 1 MHz , Output Power (POUT) = 10 dBm per tone VCC = 5 V 13.8 ± 0.2 ± 0.8 ± 0.65 24.9 39.7 4.1 18.3 10.9 24.5 12.7 ± 0.2 ± 1.1 ± 0.07 26.1 34.1 5.0 20.6 17.2 26.4 4.75 5 84 97 420 5.25 dB dB dB dB dBm dBm dB dB dB dB dB dB dB dB dBm dBm dB dB dB dB V mA mA mW ± 50 MHz −40°C ≤ TA ≤ +85°C 4.75 V to 5.25 V ∆f = 1 MHz , POUT = 10 dBm per tone VCC = 5 V Pin RFOUT, −40°C ≤ TA ≤ +85°C VCC = 5V Rev. PrB | Page 3 of 9 ADL5321 ABSOLUTE MAXIMUM RATINGS Table Summary Table 2. Parameter Supply Voltage, VCC Input Power (re: 50 Ω) Internal Power Dissipation (Paddle Soldered) θJC (Junction to Paddle) Maximum Junction Temperature Operating Temperature Range Storage Temperature Range Rating 6V +20 dBm 582 mW TBD °C/W TBD °C −40°C to +85°C −65°C to +150°C Preliminary Technical Data Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ESD CAUTION Rev. PrB | Page 4 of 9 Preliminary Technical Data PIN CONFIGURATION AND FUNCTION DESCRIPTIONS ADL5321 GND (2) ADL5321 1 2 3 RFIN GND RFOUT Figure 2. Table 3. Pin Function Descriptions Pin No. 1 2 3 Exposed Paddle Mnemonic RFIN GND RFOUT Description RF Input. Requires a dc blocking capacitor Ground: Connect to a low impedance ground plane RF Output and Supply Voltage: DC bias is provided to this pin through an inductor that is tied to the external power supply. RF path requires a DC blocking capacitor. Exposed Paddle: Internally connected to GND. Solder to a low impedance ground plane. Rev. PrB | Page 5 of 9 ADL5321 TYPICAL PERFORMANCE CHARACTERISTICS 30 Preliminary Technical Data 44 25 42 Gain, P1dB (dB, dBm) 20 40 15 OIP3 (dBm) 38 36 2500 MHz 34 2550 MHz 2600 MHz 2650 MHz 30 2700 MHz 10 Gain 25 Deg C Gain -40 Deg C Gain 85 Deg C 32 5 P1dB 25 Deg C P1dB -40 Deg C P1dB 85 Deg C 0 2500 28 2520 2540 2560 2580 2600 2620 2640 2660 2680 2700 -6 -4 -2 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 Frequency (MHz) Pout (dBm) Figure 3. Gain and P1dB vs. Frequency and Temperature 2500 MHz – 2700 MHz Figure 5. OIP3 vs. Pout and Frequency 2500 MHz – 2700 MHz 30.0 44 SN2_3500MHz_5V SN2_3600MHz_5V SN2_3700MHz_5V SN2_3800MHz_5V SN2_3850MHz_5V 42 25.0 40 Gain, P1dB (dB, dBm) 20.0 38 OIP3 (dBm) Gain 25 Deg C Gain -40 Deg C Gain 85 Deg C 5.0 P1 dB 25 Deg C P1 dB -40 Deg C P1 dB 85 Deg C 0.0 3500 3550 3600 3650 3700 3750 3800 3850 32 15.0 36 34 10.0 30 28 -6 -4 -2 0 2 4 6 8 10 12 14 16 18 20 22 24 Pout (dBm) Freq (MHz) Figure 4. Gain and P1dB vs. Frequency and Temperature 3500 MHz – 3850 MHz Pout = 10 dBm Figure 6. OIP3 vs. Pout and Frequency 3500 MHz – 3850 MHz Rev. PrB | Page 6 of 9 Preliminary Technical Data EVALUATION BOARD The basic connections for operating the ADL5321 are shown in Figure 8. The inputs and outputs should be ac coupled with appropriately sized capacitors. DC bias is provided to the amplifier via an inductor connected to the RF output pin. A bias voltage of 5 V is recommended. ADL5321 Figure 7. Evaluation Board Layout showing component placement 2500 MHz to 2700 MHz operation Gnd Vsup C6 10 uF C5 10 nF GND (2) C4 10 pF ADL5321 RFIN GND RFIN L1 9.5 nH 2 3 C2 4 10 pF C3 1.2 pF RFOUT 1 C1 1.0 pF 1 2 RFOUT R1 0 ohm 3 Figure 8. Basic Connections default condition is for 2500 MHz to 2700 MHz Table 4. Matching Component Spacing 2500 MHz - 2700 MHz λ 11 240 mils 1 λ2 75 mils λ3 89 mils λ4 325 mils 50 ohm traces 25 mils wide substrate used is FR4. Table 5. Evaluation Board Configuration Options 2500 MHz - 2700 MHz Component R1 C1 C2 C3 C4, C5, C6 Function jumper Tuning capacitor AC - coupling capacitor Tuning capacitors Power supply bypassing capacitors Default Value 0402 0 ohm 0402 1.0 pF 0402 10 pF C3 0402 1.2 pF C4 0603 10 pF C5 0603 10 nF C6 1206 10μF 0603 9.5 nH Vsup red testloop Gnd Black testloop L1 Vsup, Gnd DC bias inductor Power supply connections Rev. PrB | Page 7 of 9 ADL5321 Gnd Vsup C6 10 uF C5 10 nF GND Preliminary Technical Data (2) C4 10 pF ADL5321 RFIN RFOUT GND L1 9.5 nH 2 3 C7 1.2 pF C2 4 10 pF RFOUT RFIN C1 10 pF 1 C3 1.0 pF 1 2 3 Figure 9. Basic Connections for 3500 MHz to 3850 MHz Figure 10. Evaluation Board Layout showing component placement 3500 MHz to 3850 MHz operation Table 5. Matching Component Spacing 3500 MHz – 3850 MHz λ 11 90 mils 1 λ2 35 mils λ3 40 mils λ4 416 mils 50 ohm traces 25 mils wide substrate used is FR4. Table 6. Evaluation Board Configuration Options 3500 MHz – 3850 MHz Component C1, C2 C4, C5, C6 Function AC - coupling capacitors Power supply bypassing capacitors Default Value 0402 10 pF C4 0603 10 pF C5 0603 10 nF C6 1206 10μF 0603 9.5 nH C3 0402 1.0 pF C7 0402 1.2 pF Vsup red testloop Gnd Black testloop L1 C3, C7 Vsup, Gnd DC bias inductor Tuning capacitors Power supply connections Rev. PrB | Page 8 of 9 Preliminary Technical Data OUTLINE DIMENSIONS ADL5321 Figure 11. 3-Lead Small Outline Transistor Package [SOT-89] (RK-3) Dimensions shown in millimeters ORDERING GUIDE Model ADL5321ARKZ-R71 ADL5231-EVALZ1 1 Temperature Range −40°C to +85°C Package Description 3 Lead SOT89, Tape and Reel Evaluation Board Package Option RK-3 Branding TBD Ordering Quantity TBD Z = RoHS Compliant Part. ©2008 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. PR07307-0-1/08(PrB) Rev. PrB | Page 9 of 9