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CS42448_07 Datasheet, PDF (1/64 Pages) Cirrus Logic – 108 dB, 192 kHz 6-In, 8-Out CODEC | |||
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CS42448
108 dB, 192 kHz 6-In, 8-Out CODEC
FEATURES
GENERAL DESCRIPTION
 Six 24-bit A/D, Eight 24-bit D/A Converters
 ADC Dynamic Range
â 105 dB Differential
â 102 dB Single-Ended
 DAC Dynamic Range
â 108 dB Differential
â 105 dB Single-Ended
 ADC/DAC THD+N
â -98 dB Differential
â -95 dB Single-Ended
 Compatible with Industry-Standard Time
Division Multiplexed (TDM) Serial Interface
 System Sampling Rates up to 192 kHz
 Programmable ADC High-Pass Filter for DC
Offset Calibration
 Logarithmic Digital Volume Control
 I²C® & SPI⢠Host Control Port
 Supports Logic Levels Between 5 V and 1.8 V
 Popguard® Technology
The CS42448 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 ei-
ther differential or single-ended inputs and outputs, in a
64-pin LQFP package.
Six fully differential, or single-ended, inputs are avail-
able on stereo ADC1, ADC2, and ADC3. When
operating in Single-Ended Mode, an internal MUX be-
fore 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 CS42448 is available in a 64-pin LQFP package in
Commercial (-10°C to +70°C) and Automotive (-40°C to
+105°C) grades. The CDB42448 Customer Demonstra-
tion board is also available for device evaluation and
implementation suggestions. Please refer to âOrdering
Informationâ on page 64 for complete ordering
information.
The CS42448 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 to 5 V
Analog Supply =
3.3 V to 5 V
I2C/SPI
Software Mode
Control Data
Interrupt
Reset
Register
Configuration
ADC Overflow
& Clock Error
Interrupt
Internal Voltage
Reference
External
Mute Control
Mute
Control
Serial Audio
Input
Auxilliary Serial
Audio Input
Input Master
Clock
Serial Audio
Output
http://www.cirrus.com
Volume
Controls
Digital
Filters
ÎΣ
Modulators
Multibit
DAC1-4 and
8
Differential or
Single-Ended
Analog Filters
Outputs
8
High Pass
Filter
High Pass
Filter
Digital
Filters
Digital
Filters
Multibit
Oversampling
4
ADC1&2
4
Multibit
Oversampling
2
ADC3
2
*Optional MUX allows selection from up to 4 single-ended inputs.
Copyright © Cirrus Logic, Inc. 2007
(All Rights Reserved)
Differential or Single-
Ended Analog Inputs
NOVEMBER '07
DS648F3
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