AD8364ACPZ-R2 Analog Devices, AD8364ACPZ-R2 Datasheet
AD8364ACPZ-R2
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AD8364ACPZ-R2 Summary of contents
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... 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 ...
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AD8364 TABLE OF CONTENTS Specifications..................................................................................... 3 Absolute Maximum Ratings............................................................ 7 ESD Caution.................................................................................. 7 Pin Configuration and Function Descriptions............................. 8 Typical Performance Characteristics ............................................. 9 General Description and Theory.................................................. 18 Square Law Detector and Amplitude Target .......................... 19 RF Input Interface ...
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SPECIFICATIONS V = VPSA = VPSB = VPSR = 25°C, Channel A frequency = Channel B frequency, VLVL = VREF, VST[ OUT[A, B OUT[ FBK[A, B], differential input via Balun, ...
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AD8364 Parameter Conditions Temperature Sensitivity Deviation from OUT[ 25°C −40°C < T −40°C < T −40°C < T Deviation from OUTP to OUTN @ 25°C −40°C < T −40°C < T −40°C < T Input A to Input ...
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Parameter Conditions Output Voltage—Low Power In Pins OUT[ Temperature Sensitivity Deviation from OUT[ 25°C −40°C < T −40°C < T −40°C < T Deviation from OUTP to OUTN @ 25°C −40°C < T −40°C < ...
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AD8364 Parameter Conditions SETPOINT INPUT Pin VSTA and VSTB Voltage Range Law conformance error ≤1 dB Input Resistance Logarithmic Scale Factor f = 450 MHz, −40°C ≤ T Logarithmic Intercept f = 450 MHz, −40°C ≤ T CHANNEL DIFFERENCE OUTPUT ...
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ABSOLUTE MAXIMUM RATINGS Table 2. Parameter Rating Supply Voltage VPSA, VPSB, VPSR 5.5 V PWDN, VSTA, VSTB, ADJA, ADJB 5.5 V FBKA, FBKB Input Power (Referred to 50 Ω) 23 dBm Internal Power Dissipation 600 mW θ 39.8°C/W ...
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AD8364 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 3. Pin Function Descriptions Pin No. Mnemonic Description 1 CHPB Connect to common via a capacitor to determine 3 dB point of Channel B input signal high- pass filter DECB, DECA ...
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TYPICAL PERFORMANCE CHARACTERISTICS +25°C, –40°C, +85°C; CLPA/B = OPEN. Colors: +25°C black, –40°C blue, +85°C red –60 –50 –40 –30 –20 –10 INPUT AMPLITUDE (dBm) Figure ...
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AD8364 –60 –50 –40 –30 –20 –10 INPUT AMPLITUDE (dBm) Figure 9. OUT[A, B] Voltage and Log Conformance vs. Input Amplitude at 880 MHz, Typical Device, ADJ[ 0.5 V, Sine Wave, Differential ...
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–60 –50 –40 –30 –20 –10 INPUT AMPLITUDE (dBm) Figure 15. OUT[A, B] Voltage and Log Conformance vs. Input Amplitude at 1.88 GHz, Typical Device, TADJ[A, B]= 0.65 V, Sine Wave, Differential Drive, ...
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AD8364 –60 –50 –40 –30 –20 –10 INPUT AMPLITUDE (dBm) Figure 21. OUT[A, B] Voltage and Log Conformance vs. Input Amplitude at 2.14 GHz, Typical Device, ADJ[ 0.85 V, Sine Wave, ...
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INPUT AMPLITUDE (dBm) Figure 27. OUT[A, B] Voltage and Log Conformance vs. Input Amplitude at 2.5 GHz, Typical Device, ADJ[ 1.1 V, Sine Wave, Differential Drive, ...
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AD8364 2.0 1.5 ERROR CW ERROR QPSK 4dB CF 1.0 ERROR 256 QAM 8dB CF 0.5 0 –0.5 ERROR 16C CDMA2K –1.0 9CH SR1 14dB CF –1.5 ERROR 1C TM1-32 DPCH 13dB CF –2.0 –60 –55 –50 –45 –40 –35 ...
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Figure 37. Differential Input Impedance (S11) vs. Frequency TOTAL = 40 DEVICES RF INPUT = –60dBm 2.486 2.488 2.490 2.492 2.494 2.496 2.498 2.500 ...
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AD8364 10000 0dB 1000 –20dB –40dB 100 RF OFF 10 100 1k 10k 100k FREQUENCY (Hz) Figure 43. Noise Spectral Density of OUT[A, B]; CLP[ 0.1 µF, Frequency = 2140 MHz RF BURST ENABLE 2 OUTA CARRIER FREQUENCY ...
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RF INPUT (dBm) Figure 48. Output Voltage Stability vs. VP (Supply Voltage) at 2.14 GHz, When VP Varies by 10%,ADJ[A, B] =0.85 V, Sine Wave, ...
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AD8364 GENERAL DESCRIPTION AND THEORY The AD8364 is a dual-channel, 2.7 GHz, true rms responding detector with 60 dB measurement range. It incorporates two AD8362 channels with shared reference circuitry (See the AD8362 datasheet for more information). Multiple enhancements have ...
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SQUARE LAW DETECTOR AND AMPLITUDE TARGET The output of the VGA, called applied to a wideband SIG square law detector. The detector provides the true rms response of the RF input signal, independent of waveform ...
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AD8364 TEMPERATURE SENSOR INTERFACE The AD8364 provides a temperature sensor output capable of driving about 1.6 mA. A 330 Ω-equivalent internal resistance is connected from TEMP to COMR to provide current sink capability. The temperature scaling factor of the output ...
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OUT[ OUTPUTS The output drivers used in the AD8364 are different than the output stage on the AD8362. The AD8364 incorporates rail-to- rail output drivers with pull-up and pull-down capabilities. The output noise is approximately 40 nV/√Hz ...
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AD8364 MEASUREMENT CHANNEL DIFFERENCE OUTPUT USING OUT[P, N] The AD8364 incorporates two operational amplifiers with rail- to-rail output capability to provide a channel difference output the case of the output drivers for OUT[A, B], the output stages have ...
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RF MEASUREMENT MODE BASIC CONNECTIONS The AD8364 requires a single supply of nominally 5 V. The supply is connected to the three supply pins, VPSA, VPSB, and VPSR. Each pin should be decoupled using the two capacitors with values equal ...
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... VPOS C8 C12 0.1µF 100pF C9 C9 0.1µF 0.1µ CHPA DECA COMA VPSR ACOM 25 VPSA C7 0.1µF INHA 26 27 INLA C6 AD8364ACPZ 0.1µF PWDN 28 COMR 29 C4 0.1µF INLB 30 31 INHB EXPOSED PADDLE C3 0.1µF VPSB 32 CHPB DECB COMB ADJB ADJA C20 100pF C22 0.1µ ...
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When VSTA is set to a particular value, the AD8364 compares this value to the equivalent input power present at the RF input. If these two values do not match, OUTA increases or decreases in an effort to balance the ...
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AD8364 DIRECTIONAL OR POWER SPLITTER 0.1µF 1:4 0.1µF 1:4 C6 0.1µ 1:4 0.1µF 1 0.1µF 0.1µF I ERR VGA CONTROL 2 I INHA CHANNEL A SIG TruPwr™ INLA 2 I TGT OUTA AD8364 ...
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CONSTANT OUTPUT POWER OPERATION In controller mode, the AD8364 can be used to hold the output power stable over a broad temperature/input power range. This can be very useful in systems, such as a transmit module driving a high power ...
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... C8 C12 100pF 0.1µF SENSOR CHPA DECA COMA VPSR ACOM TEMP ACOM VPSA INHA INLA AD8364ACPZ PWDN COMR EXPOSED PADDLE INLB INHB VPSB CHPB DECB COMB ADJB ADJA VREF VLVL C19 C22 R20 R18 0.1µ ...
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GAIN-STABLE TRANSMITTER/RECEIVER There are many applications for a transmitter or receiver with a highly accurate temperature-stable gain. For example, a multicarrier basestation high power amplifier (HPA) using digital predistortion has a power detector and an auxiliary receiver. The power detector ...
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AD8364 RFIN 0Ω 0Ω 1880MHz 454Ω 19dB COUPLING R23 0Ω C11 0.1µF R4 0Ω 0.1µF 0.1µF C10 100pF T2 LDB181G8820C-110 0.1µF 0.1µF 26 INPA R3 1:4 J3 OPEN 27 C6 PWDN A 0.1µF J2 SW1 28 R2 ...
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TEMPERATURE COMPENSATION ADJUSTMENT The AD8364 has a highly stable measurement output with respect to temperature. However, when the RF inputs exceed a frequency of 600 MHz, the output temperature drift must be compensated for using ADJ[A, B] for optimal performance. ...
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AD8364 Calculation of the slope and intercept is done using the equations: Slope = (V − V )/(P − OUT1 OUT2 IN1 IN2 Intercept = P − (V /Slope) IN1 OUT1 Once slope and intercept have been calculated, ...
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BLUE = –40°C GREEN = +25°C 3.15 RED = +85°C ERROR CW –40°C 2.80 ERROR CW +25°C 2.45 2.10 ERROR CW +85° OUT 1. OUT 1.40 1.05 0.70 0.35 0 –60 –55 –50 –45 –40 ...
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AD8364 ALTERING THE SLOPE None of the changes to operating conditions discussed so far affect the logarithmic slope Equation 7. The slope can SLOPE readily be altered by controlling the fraction of OUT[A, B] that is fed ...
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CHANNEL ISOLATION Isolation must be considered when using both channels of the AD8364 at the same time. The two isolation requirements that should be considered are the isolation from one RF channel input to the other RF channel input and ...
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AD8364 CHOOSING THE RIGHT VALUE FOR CHP[A, B] AND CLP[A, B] The AD8364’s VGA includes an offset cancellation loop, which introduces a high-pass filter effect in its transfer function. The corner frequency this filter must be below ...
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PRINTED CIRCUIT BOARD CONSIDERATIONS Each RF input pin of the AD8364 presents 100 Ω impedance relative to their respective ac grounds. To ensure that signal integrity is not seriously impaired by the printed circuit board (PCB), the relevant connection traces ...
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AD8364 DESCRIPTION OF CHARACTERIZATION The general hardware configuration used for most of the AD8362 characterization is shown in Figure 81. The signal sources used in this example are the Rohde & Schwarz SMIQ03B and Agilent E4438C. Input-matching baluns are used ...
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... C8 C12 0.1µF 100pF C15 CLPA DECA COMA VPSR ACOM TEMP ACOM CLPA VSTA OUTA FBKA AD8364ACPZ OUTP OUTN FBKB OUTB VSTB DECB COMB ADJB ADJA VREF VLVL CLPB C16 CLPB C24 100pF AD8364 ...
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AD8364 EVALUATION AND CHARACTERIZATION CIRCUIT BOARD LAYOUTS There are two evaluation boards for the AD8364, one appropriate for low frequency work (AD8364-EVAL-500) and another one designed for use at 2140 MHz (AD8364-EVAL- 2140). Each board has a balun specific to ...
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Figure 85. AD8364_EVAL-2140 Evaluation Board RF Area Layout Figure 86. 880 MHz Characterization Board RF Area Layout Rev Page AD8364 ...
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... SW5 ADJA VREF (Position A)/external control (Position B) selector. SW6 ADJB VREF (Position B)/external control (Position A) selector. Part Number M/A-COM ETK4-2T Samsung CL10B101KONC Samsung CL10B104KONC Samsung CL10B104KONC Samsung CL10B104KONC AD8364ACPZ Rev Page Default Value 0.1 µF 100 pF 0.1 µF OPEN 0.1 µF 0.1 µF 100 pF 0.1 µ ...
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... SW5 ADJA VREF (Position A)/external control (Position B)l selector. SW6 ADJB VREF (Position B)/external control (Position A) selector. Part Number Murata LDB212G1020C-00 Samsung CL10B101KONC Samsung CL10B104KONC Samsung CL10B104KONC Samsung CL10B104KONC AD8364ACPZ Rev Page AD8364 Default Value 0.1 µF 100 pF 0.1 µF OPEN 0.1 µF 0.1 µF 100 pF 0.1 µ ...
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... C8 C12 0.1µF 100pF SENSOR CHPA DECA COMA VPSR ACOM TEMP ACOM VPSA INHA INLA AD8364ACPZ PWDN COMR EXPOSED PADDLE INLB INHB VPSB CHPB DECB COMB ADJB ADJA VREF VLVL C19 C22 R20 R18 0.1µ ...
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... TEMP 100pF 0.1µF SENSOR R24 J4 1kΩ DECA COMA VPSR ACOM TEMP ACOM CLPA VSTA OUTA FBKA AD8364ACPZ OUTP OUTN EXPOSED PADDLE FBKB OUTB VSTB DECB COMB ADJB ADJA VREF VLVL CLPB C19 R20 R18 0.1µ ...
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AD8364 ASSEMBLY DRAWINGS Figure 89. AD8364-EVAL-500 Assembly Drawing Figure 90. AD8364-EVAL-2140 Assembly Drawing Rev Page ...
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... MAX 1.00 0.85 0.80 SEATING PLANE ORDERING GUIDE Model Temperature Range 1, 2 AD8364ACPZ-WP −40°C to +85°C AD8364ACPZ-REEL7 1 −40°C to +85°C 1 AD8364ACPZ-RL2 −40°C to +85°C AD8364ACP-REEL7 −40°C to +85°C AD8364-EVAL-500 AD8364-EVAL-2140 Pb-free part Waffle Pack 5.00 BSC SQ 0.60 MAX 24 0.50 BSC TOP 4 ...
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... AD8364 NOTES © 2005 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D05334–0–4/05(0) Rev Page ...