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Tempo Semiconductor 92HD95B Four Channel HD Audio CODEC

Tempo Semiconductor 92HD95B Four Channel HD Audio CODEC provides stereo 24-bit full-duplex resolution supporting sample rates up to 192kHz by the DAC and ADC. SPDIF output supports sample rates of 192kHz, 96kHz, 88.2kHz, 48kHz, and 44.1kHz. Additional sample rates are supported by the driver software. An integrated BTL stereo amplifier is ideal for driving 4Ω or 8Ω integrated speakers in mobile and ultra-mobile computers. For desktop computers or mobile computers using only one speaker, the BTL output stage may be configured to support a single mono speaker. The Tempo Semiconductor 92HD95 includes an Integrated Class-G true capless stereo headphone amplifier with charge pump and LDO.

Features

  • Four-channel (two stereo DACs, two stereo ADCs) with 24-bit resolution
  • Microsoft WLP premium logo compliant
  • 2W (4Ω)/1W (8Ω) Class-D Stereo BTL amplifier at <1% THD+N and 5V
    • Selectable frequency hardware high-pass filter for speaker protection
    • Ten band hardware parametric equalizer (five bands per channel) for speaker optimization in ALL operating scenarios
    • Hardware compressor limiter allows higher average volume level without resonances or damage to speakers
  • Integrated Class-G true capless stereo headphone amplifier with charge pump/LDO
  • Four analog ports with port presence detect (three single ended, one BTL)
  • Combo jack support allowing for dual-function headphone and headset detection
  • Two voltage adjustable VREF_Out pins for microphone bias
  • Two digital microphone inputs (four mic support)
  • Microphone mute input
  • Selectable 1.5V and 3.3V HDA signaling
  • Internal DVDD LDO voltage regulator
  • Supports runtime D3 (RTD3) low power mode
  • Capable of MSLync compliance
  • Full HDA015-B and EuP low power support
    • Audio inactivity transitions codec from D0 to D3 low power mode
    • Resume from D3 to D0 with audio activity in < 10msec
    • D3 to D0 transition with < -65dB pop/click
    • Port presence detect in D3 with or without bit clock
    • PC beep wake up in D3
    • Additional vendor-specific modes for even lower power
  • 3.3V analog power supply
  • Digital and analog PC Beep to all outputs
  • 40-pin 5mm x 5mm QFN RoHS package

Block Diagram

Block Diagram - Tempo Semiconductor 92HD95B Four Channel HD Audio CODEC
Paskelbta: 2014-07-03 | Atnaujinta: 2022-03-11