MAX9931 Maxim, MAX9931 Datasheet
MAX9931
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MAX9931 Summary of contents
Page 1
... PA control-loop design. The logarithmic amplifier is a voltage-measuring device with a typical signal range of -58dBV to -13dBV for the MAX9930/MAX9933, -48dBV to -3dBV for the MAX9931, and -43dBV to +2dBV for the MAX9932. The MAX9930–MAX9933 require an external coupling capacitor in series with the RF input port. These devices feature a power-on delay when coming out of shutdown, holding OUT low for approximately 2.5µ ...
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... Logic-High Threshold Voltage Logic-Low Threshold Voltage SHDN Input Current I SHDN MAIN OUTPUT (MAX9930/MAX9931/MAX9932) Voltage Range V Output-Referred Noise Small-Signal Bandwidth Slew Rate SET INPUT (MAX9930/MAX9931/MAX9932) Voltage Range (Note 2) V Input Resistance Slew Rate (Note 3) DETECTOR OUTPUT (MAX9933) Voltage Range V Small-Signal Bandwidth Slew Rate 2 _______________________________________________________________________________________ OUT Short Circuit to GND ...
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... A MAX9932 MAX9930/MAX9933 f = 2MHz MAX9931 RF MAX9932 MAX9930/MAX9933 f = 900MHz MAX9931 +25°C A MAX9932 MAX9930/MAX9933 f = 900MHz MAX9931 RF MAX9932 MAX9930/MAX9933 f = 1600MHz MAX9931 RF MAX9932 Connected Internally DC-coupled (Note +25°C and are guaranteed by design for T A MIN TYP MAX UNITS 2 1600 MHz ...
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RF-Detecting Controllers and RF Detector = 3V, SHDN = +25°C, all log conformance plots are normalized to their respective temperatures otherwise noted.) MAX9930 SET vs. INPUT POWER ...
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... INPUT POWER (dBm) = +25°C, unless A MAX9931 SET vs. INPUT POWER 1.8 1.6 1.4 1.6GHz 1.2 1.0 2MHz 900MHz 0.8 50MHz 0.6 0.4 0.2 -50 -40 -30 -20 - INPUT POWER (dBm) MAX9931 SET AND LOG CONFORMANCE vs. INPUT POWER AT 50MHz MAX9930 toc15 1.8 4 1.6 3 1.4 2 1.2 1 1 -40° +25° +85° ...
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... +25° 1 -40° 1.0 -1 0.8 -2 0.6 -3 0.4 -4 0.2 -40 -30 -20 -10 0 INPUT POWER (dBm) = +25°C, unless A MAX9931 LOG INTERCEPT vs. V -48 2MHz -50 -52 900MHz 50MHz -54 -56 1.6GHz -58 -60 -62 2.5 3.0 3.5 4.0 1600 V (V) CC MAX9932 LOG CONFORMANCE vs. INPUT POWER 4 50MHz 3 900MHz 2 2MHz ...
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RF-Detecting = 3V, SHDN = +25°C, all log conformance plots are normalized to their respective temperatures otherwise noted.) MAX9932 SET AND LOG CONFORMANCE vs. INPUT POWER AT ...
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RF-Detecting Controllers and RF Detector = 3V, SHDN = +25°C, all log conformance plots are normalized to their respective temperatures otherwise noted.) MAX9933 OUTPUT AND LOG CONFORMANCE ...
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... FREQUENCY (Hz) MAX9930 toc51 ≤ 900mV 75mV/div f = 50MHz RF 25mV/div -2dBm = +25°C, unless A SHDN POWER-ON DELAY RESPONSE TIME MAX9930 toc47 C = 150pF CLPF OUT 2μs/div MAXIMUM OUT VOLTAGE vs LOAD CURRENT CC 5.5 5.0 4.5 0mA 4.0 3.5 5mA 3.0 2.5 2.0 2.5 3.0 3.5 4.0 1M 10M V (V) CC SMALL-SIGNAL PULSE RESPONSE MAX9930 toc52 ...
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... DET DET DET DET 10dB 10dB 10dB 10dB OFFSET REFERENCE COMP CURRENT OUTPUT- ENABLED DELAY DET DET DET DET 10dB 10dB 10dB 10dB OFFSET REFERENCE COMP CURRENT Pin Description FUNCTION g X1 OUT m CLPF V-I* SET MAX9930 MAX9931 MAX9932 g X1 OUT m CLPF V-I* MAX9933 ...
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... With a por- tion of the PA output power coupled to RFIN, apply a volt- stage, which is m age to SET (for the MAX9930/MAX9931/MAX9932) and connect OUT to the gain-control pin of the PA to control its output power. An external capacitor from CLPF to ground sets the bandwidth of the PA control loop. ...
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... Controllers and RF Detector Applications Information (MAX9930/MAX9931/MAX9932) Figure 3 provides a circuit example of the MAX9930/ MAX9931/MAX9932 configured as a controller. The MAX9930/MAX9931/MAX9932 require a 2.7V to 5.25V supply voltage. Place a 0.1µF low-ESR, surface-mount ceramic capacitor close decouple the supply. CC Electrically isolate the RF input from other pins (espe- ...
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... RF-Detecting Filter Capacitor and Transient Response In general, for the MAX9930/MAX9931/MAX9932, the choice of filter capacitor only partially determines the time-domain response control loop. However, some simple conventions can be applied to affect tran- sient response. A large filter capacitor, C nates time-domain response, but the loop bandwidth remains a factor of the PA gain-control range ...
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... MAX9932). Chip Information PROCESS: High-Frequency Bipolar 14 ______________________________________________________________________________________ Block Diagram OUTPUT- SHDN ENABLE V CC DELAY LOG RFIN DETECTOR g m BLOCK SET V-I* MAX9930 MAX9931 MAX9932 GND OUTPUT- SHDN ENABLE V CC DELAY LOG RFIN DETECTOR g m BLOCK MAX9933 V-I* GND *INVERTING VOLTAGE TO CURRENT CONVERTER. x1 OUT ...
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... RF-Detecting For the latest package outline information and land patterns www.maxim-ic.com/packages. PACKAGE TYPE 8 µMAX ______________________________________________________________________________________ Controllers and RF Detector Package Information PACKAGE CODE U8-1 α α DOCUMENT NO. 21-0140 15 ...
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... Added TOC46 to Typical Operating Characteristics Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 16 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © ...