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TSH511C Datasheet(PDF) 8 Page - STMicroelectronics |
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TSH511C Datasheet(HTML) 8 Page - STMicroelectronics |
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8 / 18 page  TSH511 8/18 Amplifier (AMP) Section GAMP Amplifier Voltage Gain ZL=2 k Ω, f carrier=10 MHz 16 20 dB ZAMP_IN Input impedance defined as RAMP_IN in parallel with CAMP_IN RAMP_IN CAMP_IN 10 2 k Ω pF ZAMP_OUT Output impedance 350 Ω P1dBAMP 1dB compression point ZL = 2 k Ω ZL = 2 k Ω, fcarrier=10 MHz 220 560 380 mVRMS BWAMP -3dB AMP Bandwidth ZL = 2 k Ω 11 MHz Limitor (LIM) Section GLIM Voltage gain ZL=15k Ω tied to GND 50 54 60 dB ZLIM_IN Input impedance defined as RLIM_IN in parallel with CLIM_IN RLIM_IN CLIM_IN 15 2 k Ω pF VLIM_OUT Output Voltage ZL = 15 k Ω tied to GND 170 mVpp FM Demodulator Section VDEM Output voltage +-75 kHz FM deviation typical application schematic ZL = 4 k Ω 700 800 900 mVRMS ZDEM_OUT Output impedance 100 Ω Squelch Section ATT Audio attenuation on each receiver when audio buffers are muted. RX1 and RX2 audio buff- ers muted ZL = 16 Ω on both audio buffers 55 65 dB ZN_IN Noise Amplifier Input impedance 2 k Ω VN_TH Comparator threshold from MUTED to UNMUTED state, RMUTE = 22 kΩ, fIN = 100 kHz 9 mVRMS VN_HYS Comparator hysteresis RMUTE = 22 kΩ, fIN = 100 kHz 1 mVRMS IMUTE_SINK Current sinked on pin 25 to discharge CMUTE capacitor: ramp generator con- trolling the attenuation from ON to OFF states of audio buffers. Voltage on pin 25 = 1.7V 24 µA IMUTE_SOU RCE Current sourced on pin 25 to charge CMUTE capacitor: ramp generator con- trolling the attenuation from OFF to ON states of audio buffers. Voltage on pin 25 = 1.7V 14 µA Symbol Parameter Test condition Min Typ Max Unit |
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