1700 MHz to 2400 MHz GaAs Matched RF PA Predriver ADL5323 FUNCTIONAL BLOCK DIAGRAM Internally matched to 50 Ω input and output Internally biased Operating frequency: 1700 MHz to 2400 MHz Gain: 20 dB OIP3: 43 dBm P1 dB: 28 dBm Noise figure: 5 dB 3 mm × 3 mm LFCSP Power supply: 5 V BIAS CONTROL VCC 5 OUTPUT MATCH INPUT MATCH GND 6 GND 7 4 RFOUT 3 GND 2 VCC RFIN 8 1 VCC ADL5323 APPLICATIONS 06058-001 FEATURES Figure 1. CDMA2000, WCDMA, and GSM base station transceivers and high power amplifiers GENERAL DESCRIPTION –15 –20 –30 –40 –50 –60 –70 –80 RBW = 30kHz VBW = 300kHz SWT = 2s RF ATT = 10dB –90 –100 CH PWR = 0dBm ACP UP = –74.2dBc ACP LOW = –73.9dBc –110 –115 CENTER 2.14GHz 1.46848MHz/ SPAN 14.6848MHz 06058-014 (dBm) The ADL5323 is a high linearity GaAs driver amplifier that is internally matched to 50 Ω for operation in the 1700 MHz to 2400 MHz frequency range. The amplifier, which has a gain of 20 dB, has been specially designed for use in the output stage of a cellular base station radio or as an input preamplifier in a multicarrier base station power amplifier. Matching and biasing are all on-chip. The ADL5323 is available in a Pb-free, 3 mm × 3 mm, 8-lead LFCSP with an operating temperature of −40°C to +85°C. Figure 2. Single-Carrier WCDMA Spectral Plot @ 2140 MHz (No Noise Floor Correction, Test Model 1-64) Rev. 0 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 ©2006 Analog Devices, Inc. All rights reserved. ADL5323 TABLE OF CONTENTS Features .............................................................................................. 1 Pin Configuration and Function Descriptions..............................5 Applications....................................................................................... 1 Typical Performance Characteristics ..............................................6 Functional Block Diagram .............................................................. 1 Basic Connections .............................................................................8 General Description ......................................................................... 1 WCDMA Driving Application ....................................................8 Revision History ............................................................................... 2 Evaluation Board ...............................................................................9 Specifications..................................................................................... 3 Outline Dimensions ....................................................................... 10 Absolute Maximum Ratings............................................................ 4 Ordering Guide .......................................................................... 10 ESD Caution.................................................................................. 4 REVISION HISTORY 7/06—Revision 0: Initial Version Rev. 0 | Page 2 of 12 ADL5323 SPECIFICATIONS VCC = 5 V, TA = 25°C. Table 1. Parameter FREQUENCY RANGE GAIN vs. Frequency vs. Temperature vs. Voltage vs. Frequency vs. Temperature vs. Voltage P1 dB vs. Frequency vs. Temperature vs. Voltage vs. Frequency vs. Temperature vs. Voltage NOISE FIGURE INPUT RETURN LOSS S11 OUTPUT RETURN LOSS S22 OIP3 vs. Frequency vs. Temperature vs. Voltage vs. Frequency vs. Temperature vs. Voltage POWER SUPPLY Supply Voltage Supply Current Operating Temperature Conditions Frequency = 1960 MHz 1930 MHz to 1990 MHz −40°C to +85°C 4.75 V to 5.25 V Frequency = 2140 MHz 2110 MHz to 2170 MHz −40°C to +85°C 4.75 V to 5.25 V Frequency = 1960 MHz 1930 MHz to 1990 MHz −40°C to +85°C 5 V, @ 5% (4.75 V to 5.25 V) Frequency = 2140 MHz 2110 MHz to 2170 MHz −40°C to +85°C 5 V, @ 5% (4.75 V to 5.25 V) Frequency = 1700 MHz to 2300 MHz Frequency = 1930 MHz to 2170 MHz Frequency = 1930 MHz to 2170 MHz Carrier spacing = 1 MHz, POUT = 5 dBm per carrier Frequency = 1960 MHz 1930 MHz to 1990 MHz −40°C to +85°C 4.75 V to 5.25 V Frequency = 2140 MHz 2110 MHz to 2170 MHz −40°C to +85°C 4.75 V to 5.25 V Min 1700 18 17.5 27.3 27.3 20.5 ±0.2 ±1.25 ±0.1 19.5 ±0.25 ±1.5 ±0.1 28 ±0.1 ±0.8 ±0.5 28 ±0.15 ±1.1 ±0.5 5 −15 −15 Max 2400 24 21.8 42.5 ±0.5 ±1 ±2 43.5 ±0.15 ±0.75 ±1.8 4.75 POUT = 5 dBm −40 Rev. 0 | Page 3 of 12 Typ 5 320 Unit MHz dB dB dB dB dB dB dB dB dBm dBm dBm dBm dBm dBm dBm dBm dB dB dB dBm dBm dBm dBm dBm dBm dBm dBm 5.25 +85 V mA °C ADL5323 ABSOLUTE MAXIMUM RATINGS Table 2. Parameter Supply Voltage, VPOS Input Power (re: 50 Ω) Equivalent Voltage θJC (Paddle Soldered) Maximum Junction Temperature Operating Temperature Range Storage Temperature Range Soldering Temperature Rating 6V 18 dBm 1.8 V rms 28.5°C/W 150°C −40°C to +85°C −65°C to +150°C 260°C 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 ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although this product features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality. Rev. 0 | Page 4 of 12 ADL5323 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS VCC 2 GND 3 RFOUT 4 PIN 1 INDICATOR ADL5323 TOP VIEW (Not to Scale) 8 RFIN 7 GND 6 GND 5 VCC 06058-002 VCC 1 Figure 3. Pin Configuration Table 3. Pin Function Descriptions Pin No. 1, 2, 5 Mnemonic VCC 3, 6, 7 4 8 N/A GND RFOUT RFIN EP Description Positive 5 V Supply Voltage. Bypass these three pins with independent power supply decoupling networks (100 pF, 10 nF, and 10 μF). Device Ground. RF Output. Internally matched to 50 Ω. RF Input. Internally matched to 50 Ω. Exposed Paddle. Connect to ground plane via a low impedance path. Table 4. S-Parameters Frequency (GHz) 1.700 1.750 1.800 1.850 1.900 1.950 2.000 2.050 2.100 2.150 2.200 2.250 2.300 2.350 2.400 ADL5323 (1, 1) +0.223/−117.296 +0.221/−121.479 +0.213/−125.661 +0.199/−125.955 +0.178/−134.553 +0.148/−139.939 +0.109/−143.147 +0.062/−144.310 +0.013/−85.228 +0.065/−1.170 +0.137/−3.193 +0.213/−9.279 +0.288/−16.416 +0.359/−23.757 +0.423/−31.004 ADL5323 (1, 2) 0.001/46.748 0.001/42.216 8.631E-4/20.038 7.410E-4/8.703 +6.610E-4/−15.411 +6.107E-4/−49.029 +7.862E-4/−93.510 +9.845E-4/−106.413 +0.001/−137.342 +0.002/−152.839 +0.002/−165.020 0.002/178.599 0.003/168.309 0.003/156.456 0.003/145.888 Rev. 0 | Page 5 of 12 ADL5323 (2, 1) 11.970/81.811 11.841/70.891 11.719/59.628 11.579/48.044 11.430/36.098 11.233/23.696 10.994/10.837 +10.677/−2.467 +10.282/−16.244 +9.786/−30.382 +9.178/−44.797 +8.460/−59.375 +7.657/−73.707 +6.820/−87.516 +6.002/−100.610 ADL5323 (2, 2) 0.329/131.623 0.284/126.121 0.237/119.974 0.187/112.389 0.138/101.953 0.092/85.095 0.058/47.650 +0.064/−8.136 +0.103/−38.076 +0.151/−52.943 +0.201/−62.896 +0.250/−70.697 +0.298/−77.549 +0.343/−83.655 +0.386/−89.478 ADL5323 TYPICAL PERFORMANCE CHARACTERISTICS 23 21 5.6 TEMP = +85°C 5.4 NF (dBm) 19 18 17 5.0 4.8 4.6 15 4.4 14 4.2 13 1700 1800 1900 2000 2100 2200 2300 2400 FREQUENCY (MHz) 4.0 1700 1800 1900 2000 2100 2200 2300 2400 FREQUENCY (MHz) Figure 4. Gain vs. Frequency, VCC = 5 V, TA = −40°C, +25°C, and +85°C Figure 7. Noise Figure vs. Frequency, VCC = 5 V, TA = 25°C 29 29.0 TEMP = –40°C 28 VCC = 5.25V 28.5 TEMP = +25°C 28.0 TEMP = +85°C VCC = 5V 27.5 P1dB (dBm) 27 P1dB (dBm) 5.2 16 06058-003 GAIN (dB) 20 5.8 TEMP = +25°C 06058-006 22 6.0 TEMP = –40°C 26 25 VCC = 4.75V 27.0 26.5 26.0 25.5 24 1900 2000 2100 2200 2300 2400 FREQUENCY (MHz) 24.5 1700 06058-004 1800 Figure 5. P1 dB vs. Frequency, VCC = 5 V, TA = −40°C, +25°C, and +85°C 1800 1900 2000 2100 2200 2300 2400 FREQUENCY (MHz) 06058-007 25.0 23 1700 Figure 8. P1 dB vs. Frequency, VCC = 4.75 V, 5 V, and 5.25 V, TA = 25°C 44 44 TEMP = +25°C VCC = 5.25V 43 43 TEMP = +85°C VCC = 5V TEMP = –40°C 41 40 40 39 39 38 1700 1800 1900 2000 2100 FREQUENCY (MHz) 2200 2300 2400 Figure 6. OIP3 vs. Frequency, VCC = 5 V, TA = −40°C, +25°C, and +85°C VCC = 4.75V 41 38 1700 1800 1900 2000 2100 2200 2300 2400 FREQUENCY (MHz) Figure 9. OIP3 vs. Frequency, VCC = 4. 75 V, 5 V, and 5.25 V, TA = 25°C Rev. 0 | Page 6 of 12 06058-008 OIP3 (dBm) 42 06058-005 OIP3 (dBm) 42 ADL5323 12 10 9 10 8 8 FREQUENCY FREQUENCY 7 6 5 4 6 4 3 2 2 40 41 42 43 44 45 0 06058-009 0 46 OIP3 (dBm) 40 –10 –20 S22 –25 S11 –30 –35 2000 2100 2200 2300 2400 FREQUENCY (MHz) 06058-010 ADL5323 [1, 1] (dB) ADL5323 [2, 2] (dB) –15 1900 43 44 45 Figure 12. Distribution of OIP3 at 2170 MHz –5 1800 42 OIP3 (dBm) Figure 10. Distribution of OIP3 at 1990 MHz –40 1700 41 Figure 11. Input S11 and Output S22 Return Loss vs. Frequency Rev. 0 | Page 7 of 12 46 06058-011 1 ADL5323 BASIC CONNECTIONS –15 –20 Figure 16 shows the basic connections for operating the ADL5323. Each of the three power supply lines should be decoupled with 10 μF, 10 nF, and 100 pF capacitors. Pin 3, Pin 6, Pin 7, and the exposed paddle under the device should all be connected to a low impedance ground plane. If multiple ground planes are being used, these should be stitched together with vias under the device to optimize thermal conduction. See the recommended land pattern in Figure 13 for more information. –30 –40 –50 (dBm) –60 –70 –80 –100 CH PWR = 0dBm ACP UP = –74.2dBc ACP LOW = –73.9dBc –110 –115 CENTER 2.14GHz 1.46848MHz/ SPAN 14.6848MHz 06058-014 RBW = 30kHz VBW = 300kHz SWT = 2s RF ATT = 10dB –90 Figure 14. Spectrum of Single WCDMA Carrier Centered at 2140 MHz; Carrier Power = 0 dBm, ACPR = −74 dBc 06058-013 Figure 15 shows how ACP varies with output power level. Note that in this plot, the noise floor of the spectrum analyzer was factored out. –55 WCDMA DRIVING APPLICATION Figure 14 shows a plot of the spectrum of an ADL5323 driving a single carrier WCDMA signal (Test Model 1-64) at 0 dBm, centered at 2140 MHz. At 5 MHz offset, an adjacent channel power ratio of −74 was measured. –60 –65 –70 –75 –80 –15 –10 –5 0 5 10 15 OUTPUT POWER (dBm) 20 06058-015 ACP @ 5 MHz CARRIER OFFSET (dBc) Figure 13. Recommended Land Pattern Figure 15. WCDMA ACP vs. Output Power, Single Carrier, Test Model 1-64 C5 100pF RFOUT VCC C3 10nF C2 100pF AGND AGND AGND ADL5323 AGND 5 VCC 6 GND 7 GND 8 RFIN RFOUT GND VCC VCC 4 3 2 1 EP C4 100pF AGND VCC C6 100pF C7 10nF C8 10µF AGND AGND AGND C9 100pF C10 10nF C11 10µF AGND AGND AGND VCC RFIN Figure 16. Basic Connections Rev. 0 | Page 8 of 12 06058-012 C1 10µF ADL5323 EVALUATION BOARD 06058-016 Figure 18 shows the schematic of the ADL5323 evaluation board. The board is powered by a single supply in the 4.75 V to 5.25 V range. The power supply is decoupled on each of the three power supply pins by 10 μF, 10 nF, and 100 pF capacitors. See Table 5 for the exact evaluation board component values. Note that all three VCC pins (Pin 1, Pin 2, and Pin 5) should be independently bypassed as shown in Figure 18 for proper operation. Figure 17. Evaluation Board Component Side View Table 5. Evaluation Board Components Component DUT1 C1, C12, C16 C3, C11, C17 C2, C10, C18 C8, C9, C13, C14, R3 R2, R4 Function Driver amplifier Low frequency bypass capacitors Low frequency bypass capacitors High frequency bypass capacitors Open AC coupling capacitors Default Value ADL5323 10 μF, 0603 10 nF, 0402 100 pF, 0402 Open , 0402 100 pF, 0402 R4 100pF RFOUT VCC C1 10µF C3 10nF C2 100pF AGND AGND AGND ADL5322/ ADL5323 AGND 5 VCC 6 GND 7 GND 8 RFIN R2 100pF RFOUT GND VCC VCC AGND AGND TP2 VCC C10 100pF C11 10nF C12 10µF AGND AGND AGND TP1 SNS1 GND VCC AGND VCC C18 100pF C17 10nF C16 10µF AGND AGND AGND VCC W1 VCC AGND 06058-017 AGND AGND R3 OPEN RFIN C9 OPEN C14 OPEN AGND 4 3 2 1 DUT1 C8 OPEN C13 OPEN Figure 18. Evaluation Board Schematic Rev. 0 | Page 9 of 12 ADL5323 OUTLINE DIMENSIONS 3.00 BSC SQ 0.60 MAX 0.50 0.40 0.30 1 8 PIN 1 INDICATOR 0.90 MAX 0.85 NOM TOP VIEW 2.75 BSC SQ 0.50 BSC 1.50 REF 5 1.89 1.74 1.59 4 1.60 1.45 1.30 0.70 MAX 0.65 TYP 12° MAX PIN 1 INDICATOR 0.05 MAX 0.01 NOM SEATING PLANE 0.30 0.23 0.18 0.20 REF Figure 19. 8-Lead Lead Frame Chip Scale Package [LFCSP_VD] 3 mm × 3 mm Body, Very Thin, Dual Lead (CP-8-2) Dimensions shown in millimeters ORDERING GUIDE Model ADL5323ACPZ-R7 1 ADL5323ACPZ-WP1 ADL5323-EVAL 1 Temperature Range −40°C to +85°C −40°C to +85°C Package Description 8-Lead LFCSP_VD, 7" Tape and Reel 8-Lead LFCSP_VD, Waffle Pack Evaluation Board Z = Pb-free part. Rev. 0 | Page 10 of 12 Package Option CP-8-2 CP-8-2 Branding OR OR Ordering Quantity 1500 50 1 ADL5323 NOTES Rev. 0 | Page 11 of 12 ADL5323 NOTES ©2006 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. 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