AD1953 is a 5V 3-channel audio DAC system that supports 2-channel or 6-channel packed mode, with a sampling rate of up to 48kHz. The product has 7 Biquad filter sections, dual dynamic processors, 0ms to 6ms variable delay/channel, stereo spreading algorithm and program RAM.
The AD1953 is a complete 26‑bit, 3‑channel digital audio playback system that includes a built‑in DSP for speaker equalization, compression, delay, and stereo expansion. It supports sample rates up to 48 kHz and provides high‑quality audio with 112 dB signal‑to‑noise ratio and 112 dB dynamic range.
The device is programmed via an extensive SPI port that allows click‑free parameter updates and full read‑back of program and parameter RAM. It is supplied in a 48‑lead LQFP package, operates from a 4.5‑5.5 V supply, and is rated for –40 °C to +105 °C operation.
| THD+N | -100 dB |
|---|---|
| Analog Output Differential Range (L/R) | 2.72 V p‑p |
| Power Dissipation (Both Supplies) | 540 mW |
It can be programmed via the SPI port, which includes a safe‑upload mode for transparent parameter updates.