Cirrus Logic has released the CS4923/4/5/6/7/8/9 series of multi-channel digital audio decoders, which feature virtual 3D output, simulated surround and programmable effects, real-time automatic detection of Dolby Digital®, DTS®, MPEG Multi-Channel and PCM, and flexible 6-channel master or slave output
The CS4923/4/5/6/7/8/9 family provides flexible multi‑channel audio decoding for home A/V receivers, DVD players, set‑top boxes and similar devices. Variants support Dolby Digital, DTS, MPEG‑2 multi‑channel, AAC 2‑channel and PCM, with optional 3‑D output and programmable effects.
Key features include a 3.3 V supply, 8 kB input buffer, multiple host interfaces (parallel Intel/Motorola, SPI, I²C), external memory boot, and detailed timing specifications for reset, clock and data signals.
| Digital supply voltage (VD) | 3.3 V typ (3.13‑3.47 V range) |
|---|---|
| Analog supply voltage (VA) | 3.3 V typ (3.13‑3.47 V range) |
| Digital input voltage (VinD) | 0.3 V – 5.5 V |
| Recommended ambient temperature | 0 °C – 70 °C |
| RESET minimum pulse width | 100 ns |
| Digital power‑supply current | 225 mA – 435 mA |
It supports Dolby Digital, DTS, MPEG‑2 multi‑channel, AAC 2‑channel and PCM audio formats.
Both the analog and digital supplies are typically 3.3 V.
The minimum RESET pulse width is 100 ns.