TSH512 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'TSH512' PDF : 32 Pages View PDF
General description
TSH512
5.8
Output buffer section
The output buffers can deliver a sinusoidal signal with a 1.5 Vpp amplitude in a 1 kΩload.
This impedance is compatible with popular biasing circuitry of external transistor drivers of
IR LEDs.
The VOX-MUTE logic signal can be used to control the external LED drivers. When the
audio is not present on the TX1 input, VOX-MUTE is in Low state, the TSH512’s internal
buffers are muted, and the external drivers can be switched off by controlling their bias.
5.9
SBY pin: standby for mono operation
A high state on the Standby pin (SBY) sets the second transmitter TX2 to power-down. The
SBY pin is typically used when the TSH512 is used as a mono transmitter (that is, infrared
microphone transmitter).
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Doc ID 8120 Rev 7
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