AD1988A/AD1988B is a high definition audio codec produced by Analog Devices, supporting 192kHz sampling rate, with 10 independent stereo DACs and 6 independent stereo ADCs, supporting 7.1 surround sound and independent headphone output.
The AD1988A and AD1988B are high‑definition audio SoundMAX® codecs offering up to ten 192 kHz DACs, six 192 kHz ADCs, multiple sample‑rate options, and integrated headphone and microphone support. They include programmable gain, digital PCM control, and support for various audio formats.
This handbook contains a functional block diagram, detailed specifications, test conditions, absolute maximum ratings, pin configuration, hardware volume control circuitry, outline dimensions, and an ordering guide for the 48‑lead LQFP and LFCSP_VQ packages.
| Sample rate range | 8 kHz – 192 kHz |
|---|---|
| DAC resolution | 24 bits |
| ADC resolution | 24 bits |
| Analog supply voltage | 3.3 V ±5 % |
| Digital supply voltage | 3.3 V ±10 % |
| Power dissipation (analog) | 155 mW / 172 mW |
| Line‑out full‑scale voltage | 1.0 Vrms |
| Line‑out impedance | 300 Ω |
| THD+N (line output) | ‑85 dB |
| Dynamic range | ‑60 dB (A‑weighted) |
The codec supports sample rates from 8 kHz up to 192 kHz.
The device includes ten 192 kHz DACs.
The full‑scale line‑out voltage is 1.0 Vrms when the output drive is enabled.