This document introduces the features and applications of the TSH512 Hi-fi stereo/mono infrared transmitter and stereo sub-carrier generator
The TSH512 is a single-chip solution designed for high-versatility applications such as infrared hi-fi stereo transmitters, headsets, and voice-operated wireless webcams. It integrates low-noise audio preamplifiers with automatic level control (ALC), frequency-modulated oscillators, and linear output buffers to drive external transistors.
Key features include sinusoidal carriers for high spectral purity, a VOX function to save battery power by disabling the output buffer when no audio signal is present, and a standby mode for mono operation. The device operates with a supply voltage between 2.3 V and 5.5 V.
| Supply voltage range | 2.3 to 5.5 V |
|---|---|
| Carrier frequency range | 0.4 to 11 MHz |
| Operating temperature range | -40 to +85 °C |
| Maximum junction temperature | 150 °C |
| Audio frequency range | 20 to 20,000 Hz |
| LNA Gain bandwidth product | 7 MHz |
The device operates with a supply voltage between 2.3 V and 5.5 V.
It is used in infrared hi-fi stereo transmitters, infrared headsets, and voice-operated wireless webcams.
Yes, the TX2 transmitter can be put into standby mode via the SBY pin to enable mono operation.