General Description

The CS42428 codec provides two analog-to-digital and eight digital-to-analog delta-sigma converters, as well as an integrated PLL.

The CS42428 integrated PLL provides a low-jitter system clock. The internal stereo ADC is capable of independent channel gain control for single-ended or differential analog inputs. All eight channels of DAC provide digital volume control and differential analog outputs. The general-purpose outputs may be driven high or low, or mapped to a variety of DAC mute controls or ADC overflow indicators.

Features

♦ Eight 24-bit D/A, two 24-bit A/D Converters

♦ 114 dB DAC / 114 dB ADC Dynamic Range

♦ -100 dB THD+N

♦ System Sampling Rates up to 192 kHz

♦ Integrated Low-Jitter PLL for Increased System Jitter Tolerance

♦ PLL Clock or System Clock Selection

♦ 7 Configurable General-Purpose Outputs

♦ ADC High-Pass Filter for DC Offset Calibration

♦ Expandable ADC Channels and One-Line Mode Support

♦ Digital Output Volume Control with Soft Ramp

♦ Digital +/-15 dB Input Gain Adjust for ADC

♦ Differential Analog Architecture

♦ Supports Logic Levels between 1.8 V and 5 V