This document introduces the features and characteristics of Cirrus Logic CS4245 105 dB, 24-Bit, 192 kHz Stereo Audio CODEC.
The CS4245 is a 24‑bit, 192 kHz stereo audio CODEC featuring multi‑bit Delta‑Sigma modulators for both DAC and ADC sections. It provides up to 105 dB dynamic range, -95 dB THD+N, selectable serial audio interfaces, and built‑in Popguard™ technology for click‑free output transitions.
The document includes detailed pin descriptions, electrical characteristics, absolute maximum ratings, DAC and ADC analog specifications, digital interface details, and a register map for configuring the device. It also contains typical connection diagrams and application notes for integrating the codec into audio systems.
| Dynamic Range (DAC) | 105 dB |
|---|---|
| THD+N (DAC) | -95 dB |
| Analog Supply Voltage (VA) | 3.1 V – 5.25 V |
| Digital Supply Voltage (VD) | 3.1 V – 5.25 V |
| Serial Port Logic Level (VLS) | 1.71 V – 5.25 V |
| Control Port Logic Level (VLC) | 1.71 V – 5.25 V |
| Ambient Operating Temperature (powered) | -10 °C to +70 °C |
The CS4245 DAC provides a dynamic range of 105 dB.
The analog supply voltage (VA) is rated up to 5.25 V.
The device operates from –10 °C to +70 °C when power is applied.
The total harmonic distortion plus noise is –95 dB.