CS4244 Overview
The CS4244 provides four multi-bit analog-to-digital and four multi-bit digital-to-analog Delta Sigma converters and is compatible with differential inputs and either differential or single-ended outputs. Digital volume control, noise gating, and muting is provided for each DAC path. A selectable high-pass filter is provided for the 4 ADC inputs. The CS4244 supports main and secondary modes and TDM, left-justified, and I²S modes. This product is available in a 40-pin QFN package in Automotive (–40 °C to +85 °C) and Commercial (0 °C to +70 °C) temperature grades. The CDB4244 Customer Demonstration Board is also available for device evaluation and implementation suggestions.
Product Features
DAC Features
Advanced multi-bit Delta Sigma modulator
24-bit resolution
Differential or single-ended outputs
Dynamic range (A-weighted)
THD+N
2 VRMS full-scale output into 3-kΩ AC load
Rail-to-rail operation
ADC Features
Advanced multi-bit Delta Sigma modulator
24-bit resolution
Differential inputs
–105 dB dynamic range (A-weighted)
–88 dB THD+N
2 VRMS full-scale input
System Features
TDM, left justified, and I²S serial inputs and outputs
I²C™ host control port
Supports logic levels between 5 and 1.8 V
Supports sample rates up to 96 kHz
Parametric Specifications
| Analog Input Type | Single-ended; Differential |
| Analog Output Type | Single-ended; Differential |
| Channels In | 2 |
| Channels Out | 2 |
| Control Interface | SPI/I²C |
| ADC Dynamic Range (dB) | 105 |
| DAC Dynamic Range (dB) | 109 |
| ADC THD+N (dB) | -88 |
| DAC THD+N (dB) | -90 |
| Sample Rate (kHz) | 96 |
| Analog Power Supply (V) | 3.3-5 |
| Digital Power Supply (V) | 1.8-5.25 |
| Logic Power Supply (V) | 1.8-5 |
| Features | Left-Justified, I²S, or TDM audio interfaces|I²C control interface |
| Package | 40 QFN |
Design Resources
CS42448 Datasheet
CDB4244 Evaluation Board User Guide
Evaluation Boards
CS4244 Codec Evaluation Board (CDB4244)
The CDB4244 evaluation board is a platform for evaluating the CS4244 multi-channel CODEC, offering multiple analog input/output filter options, a versatile S/PDIF interface, and DSP serial audio I/O, configured via Windows-based FlexGUI software.