TSH511 ST Microelectronics, Inc., TSH511 Datasheet
TSH511
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TSH511 Summary of contents
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... High sensitivity: 4µV @12dB SINAD Flexibility: access pins for each section Receiver 2 Standby for mono operation DESCRIPTION The TSH511 MHz dual FM receiver. This circuit offers the functions needed for a highly sensitive infrared HiFi STEREO receiver. Featuring high input sensitivity and high input dy- ...
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... Standby Standby demodulator FM demodulator amp. amp. limiter limiter RX2 RX2 LNA LNA TSH511 TSH511 Audio Audio 6 6 buffers buffers RX1 RX1 Vref Vref 9 9 limiter limiter amp. amp. FM demodulator FM demodulator ...
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... Capacitor connection (ramp generator to mute the audio) O Audio buffer output - GROUND - Decoupling capacitor of Audio buffers - SUPPLY VOLTAGE O Audio buffer output I Standby 2 I Standby 1 - GROUND I Audio buffer input - GROUND O Mixer output - SUPPLY VOLTAGE I Mixer input - Decoupling capacitor O Limiter output - Decoupling capacitor I Limiter input - GROUND O Intermediate amplifier output TSH511 3/18 ...
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... TSH511 TYPICAL SCHEMATIC Stereo infrared receiver 4/18 ...
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... INFRARED STEREO HEADPHONE APPLICATION The right side of the figure shows the block-diagram of an infrared stereo receiver using the TSH511. The sensitive LNA directly connected to the photodiode does not require an external pre-amplifier. After filter- ing, the amplified signals are limited and demodulated with quadrature demodulators. The two integrated audio buffers directly drive the stereo headphones ...
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... Band-pass Band-pass MULTIMEDIA APPLICATION: COMPUTER SIDE In multimedia application, the TSH511 receives the voice of the user through the 1.7 MHz infrared carrier. The standby pins can disable the unused receiver and audio amplifier to reduce the supply current. TSH511 & 512 supply: TSH511 & 512 supply: 2 ...
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... RMS psophometric filter ZL MHz carrier LNA_IN C LNA_IN LNA_IN ZL ZL =10 MHz carrier ZL ZL =10 MHz carrier TSH511 Min Typ Max Unit 9.5 11 µV RMS , µV RMS 60 0 ...
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... TSH511 Symbol Parameter Amplifier (AMP) Section G Amplifier Voltage Gain AMP Input impedance defined as Z AMP_IN R in parallel with C AMP_IN Z Output impedance AMP_OUT P 1dB compression point 1dBAMP BW -3dB AMP Bandwidth AMP Limitor (LIM) Section G Voltage gain LIM Input impedance defined as Z LIM_IN ...
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... OFF Standby mode Test condition Min ZL 70mV OD_IN RMS Vout = 0 RMS Z = 10k L with decoupling capacitor CDEC = 1µF/ceramic on pin 28. Pout = 20 mW Pout = TSH511 Typ Max Unit 200 k 35 kHz 20 mW 0.2 0.3 % 0. 0.5 µs 0.5 µ ...
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... TSH511 OVERALL CIRCUIT Supply current vs. Supply voltage 20 RX1+RX2+Buffers 18 16 RX1+Buffers RX1+ (RX1 Buffer (V) CC S/N vs. 2.8 MHz Input Level 60 50 PSOPH 100 Input Level ( V) PSOPH: Signal on Noise Ratio curve measured with a CCITT standard psophometric bandpass characteristic. It approximates the response of human hearing ...
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... Output THD+N vs. Output Power ( kHz 5.5V CC 0.1 100 Output THD+N vs. Output Power (RL = 600 ) 600 kHz kHz 0.1 10 TSH511 kHz kHz 2 100 P (mW) OUT-BUF kHz 2.7 V ...
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... TSH511 Output THD+N vs. Output Voltage (RL = 10k ) 2. kHz kHz 5.5V CC 0.1 0 OUT-BUF rms Output THD+N vs. Frequency ( 2 rms 0.1 100 1000 20 Frequency (Hz) Output THD+N vs. Frequency (RL = 600 2 rms ...
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... Output Power vs. Temperature -40 - (°C) AMB RMS TSH511 13/18 ...
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... TSH511 GENERAL DESCRIPTION The TSH511 MHz dual FM analogue receiver. The incoming signal is amplified with Low Noise Amplifier (LNA section). The good noise performance of the LNA allows the photodiode for infrared applications to be connect- ed directly to the TSH511 without any external preamplifier ...
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... Figure demodulator schematic SQUELCH section To avoid audio ’FM noise’ at the speakers when no carrier is received, the TSH511 has a built-in Squelch circuit. The Squelch detects the wide- band ’FM noise’ on the demodulated output and fades-out the audio of both audio buffers. ...
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... Standby section Depending on the states of the logic inputs SBY1 and SBY2, RX2 and the Audio Buffer2 can be disabled separately. The TSH511 receiver can adapt to different applications by using SBY1 & SBY2 standby pins: SBY1 SBY2 ...
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... APPLICATION SCHEMATIC The infrared carriers are detected by the photodiode and the signal is directly amplified by the TSH511. Optional reject filters can be added in each channel to improve crosstalk performances. Each receiver has a standard bandpass filter (filters F1 & F3) to select the 2.3 and 2.8 MHz carriers. After the FM demodulators, the potentiometers P1 and P2 control the volume levels ...
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... TSH511 PACKAGE MECHANICAL DATA 44 PINS - PLASTIC PACKAGE Dimensions Min 0.05 A2 1.35 B 0. Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use ...