92HD91B (Download Data Sheet)
Single Chip PC Audio System: CODEC + Speaker Amplifier + Capless HP + LDO
The 92HD91B single-chip audio system is a low power optimized, high fidelity, 4-channel audio codec with integrated speaker amplifier, capless headphone amplifier, and low drop out voltage regulator. The integrated combo jack allows for dual-function headphone and headset detection. The integrated high-pass and band-pass filters allow for Hardware EQ and speaker protection.
Features
- 2 Full Duplex Stereo 24-bit ADCs and 24-bit DACs
- 3W/channel Class-D stereo speaker amplifier @ 4 ohms and 5V
- Hardware EQ and Compressor Limiter
- Capless headphone amplifier with charge pump/LDO
- Dual SPDIF Outputs and AUX Audio Mode for playback and record
- Combo Jack Support allowing for dual-function headphone and headset detection
- Dedicated BTL high pass filter and Mono bandpass filter for speaker protection
- Full HDA015-B low power support
- Internal digital core LDO voltage regulator
- 48 pin QFN 7mm X 7mm Package
Product Specification
| Interface | DAC Mono Channels (#) | ADC Mono Channels (#) | HDA Bus Voltage (V) | Analog Supply Voltage (V) | Ports (#) | GPIOs (#) | Headphone Amps | SPDIF out | SPDIF in | Advanced Features |
|---|---|---|---|---|---|---|---|---|---|---|
| HD Audio | 4 | 4 | 1.5, 3.3 | 5 | 6 | 5 | 1 Standard, 1 Cap-less | Dual | None | High pass filter, Bandpass filter, Input Mic Mute |
Documents
| Title | Type | Format | File Size | Date | |
|---|---|---|---|---|---|
| 92HD91 Reference Schematic | Reference Schematic | PDK | 154kB | 05-01-15 | |
| 92HD91 Reference Schematic Verb Table | Verb Table | TXT | 1kB | 11-01-18 | |