lt5504 Linear Technology Corporation, lt5504 Datasheet
lt5504
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lt5504 Summary of contents
Page 1
... RF signal from –75dBm to +5dBm. The logarithm of the RF signal is precisely converted into a linear DC voltage. The LT5504 consists of RF/IF limiters buffer amplifier, a limiting mixer, a 3rd-order 450MHz integrated low pass filter, RF/IF detectors and an output interface. The ultrawide dynamic range is achieved ...
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... Input = –20dBm Input = 0dBm Input from –50dBm to –20dBm Input = –70dBm Input = –20dBm Input = 0dBm Input from –50dBm to –20dBm ORDER PART NUMBER OUT LT5504EMS8 MS8 PART MARKING LTGP MIN TYP MAX UNITS 800 to 2700 MHz 1.7 V 850 to 3100 MHz ...
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... Note 7: Refer to Pin Functions description. Supply Current vs Supply Voltage and Temperature 85° 25° –40° 2.5 3.5 4.0 4.5 5.0 5.5 3.0 SUPPLY VOLTAGE (V) 5504 G02 LT5504 MIN TYP MAX UNITS 0.3 1.45 1 mV/dB 400 µA 3.9 µV/√Hz 0.32 µV/√Hz 200 ns 400 ns 4 µs 30 kΩ ...
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... LT5504 W U TYPICAL PERFOR A CE CHARACTERISTICS Output Slope Variation vs RF Input Power and Frequency 240MHz IF AVERAGE SLOPE: 23mV/ 900MHz 1.9GHz RF –2 50% VARIATION OR SLOPE = 11.5mV/dB – 2.5GHz RF –6 –80 –70 –60 –50 –40 –30 –20 – PIN (dBm) ...
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... APPLICATIO S I FOR ATIO The LT5504 consists of the following sections: RF/IF limiters, limiting mixer, RF/IF detectors, LO buffer ampli- fier, 3rd-order integrated low pass filter (LPF), output interface and bias circuitry signal ranging from 800MHz to 2.7GHz is detected by the RF and IF detectors using a proprietary technique. ...
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... LT5504 U U APPLICATIO S I FOR ATIO 1: 63.56Ω –j98.05Ω 900.00MHz 2: 26.69Ω 3 –j42.90Ω 1.90GHz 3: 28.88Ω –j27.76Ω 2.50GHz 2 START: 100MHz Figure 1. Differential RF Input Impedance MATCHING NETWORK C S1 3.3pF RF INPUT L SH 3.3nH C S2 3.3pF Figure 2. RF Input Matching Network at 1900MHz Figure 3 shows the output voltage vs RF input power response for these two input terminations ...
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... RSSI output can be split 5504 F04 into two branches, providing AC coupled data output, and DC coupled, RSSI output for signal strength measure- ments and AGC. Refer to Figure 5. The LT5504 can also be used as a wide range RF power detector for transmit power control ...
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... LT5504 PACKAGE DESCRIPTIO 0.889 ± 0.127 (.035 ± .005) 5.23 3.2 – 3.45 (.206) (.126 – .136) MIN 0.65 0.42 ± 0.04 (.0165 ± .0015) (.0256) TYP BSC RECOMMENDED SOLDER PAD LAYOUT NOTE: 1. DIMENSIONS IN MILLIMETER/(INCH) 2. DRAWING NOT TO SCALE 3. DIMENSION DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. ...