The CS4365 is a complete 6-channel digital-to-analog system. This D/A system includes digital de-emphasis, half-dB step size volume control, ATAPI channel mixing, selectable fast and slow digital interpolation filters followed by an oversampled, multi-bit delta sigma modulator which includes mismatch shaping technology that eliminates distortion due to capacitor mismatch. Following this stage is a multi-element switched capacitor stage and low-pass filter with differential analog outputs. The CS4365 also has a proprietary DSD processor which allows for volume control and 50 kHz on-chip filtering without an intermediate decimation stage. It also offers an optional path for direct DSD conversion by directly using the multi-element switched capacitor stage.
The CS4365 is a 6‑channel, 24‑bit digital‑to‑analog converter featuring a multi‑bit delta‑sigma architecture, 114 dB dynamic range, and selectable digital filters from 4 kHz to 216 kHz. It supports PCM, DSD, ATAPI, and TDM audio formats and includes on‑chip volume control and a 50 kHz filter.
The document provides pin descriptions, electrical specifications, register maps, recommended power‑up sequences, and ordering information. It also includes timing diagrams for the serial audio and control interfaces, as well as detailed filter and distortion specifications.
| Analog power supply (VA) typical | 5.0 V |
|---|---|
| Digital internal power (VD) typical | 2.5 V |
| Serial data port interface power (VLS) typical | 5.0 V |
| Control port interface power (VLC) typical | 5.0 V |
| Maximum supply voltage (VA) | 6.0 V |
The typical analog power supply voltage (VA) is 5.0 V.
The typical digital internal power (VD) is 2.5 V.