TDM CODEC - Cirrus Logic
Description
CS42438
108 dB, 192 kHz 6-In, 8-Out TDM CODEC
FEATURES
GENERAL DESCRIPTION
Six 24-bit A/D, Eight 24-bit D/A Converters
ADC Dynamic Range – 105 dB Differential – 102 dB Single-Ended
DAC Dynamic Range – 108 dB Differential – 105 dB Single-Ended
ADC/DAC THD+N – -98 dB Differential – -95 dB Single-Ended
Compatible with Industry-Standard Time Division Multiplexed (TDM) Serial Interface
DAC Sampling Rates up to 192 kHz
ADC Sampling Rates up to 96 kHz
Programmable ADC High-Pass Filter for DC Offset Calibration
Logarithmic Digital Volume Control
Hardware Mode or Software I²C™ and SPI™
Supports Logic Levels Between 5 V and 1.
8 V
The CS42438 CODEC provides six multi-bit analog-to-digital and eight multi-bit digital-to-analog delta-sigma converters.
The CODEC is capable of operation with either differential or single-ended inputs and outputs, in a 52-pin MQFP package.
Six fully differential, or single-ended, inputs are available on stereo ADC1, ADC2, and ADC3.
When operating in Single-Ended Mode, an internal MUX before ADC3 allows selection from up to four single-ended inputs.
Digital volume control is provided for each ADC channel, with selectable overflow detection.
All eight DAC channels provide digital volume control and can operate with differential or single-ended outputs.
An auxiliary serial input is available for an additional two channels of PCM data.
The CS42438 is available in a 52-pin MQFP package in Commercial (-10°C to +70°C) and Automotive (-40°C to +105°C) grades.
The CDB42438 Customer Demonstration Board is also available for device evaluation and implementation suggestions.
Please refer to “Ordering Information” on page 61 for complete ordering information.
The CS42438 is ideal for audio systems requiring wide dynamic range, negligible distortion and low noise, such as A/V receivers, DVD receivers, and automotive audio systems.
Control Port & Serial Audio Port Supply = 1.
8 V to 5 V
Digital Supply = 3.
3 V
Analog Supply = 3.
3 V to ...
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