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TSH512CF Fiches technique(PDF) 26 Page - STMicroelectronics |
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TSH512CF Fiches technique(HTML) 26 Page - STMicroelectronics |
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26 / 31 page ![]() General description TSH512 26/31 Doc ID 8120 Rev 7 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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