
Copyright
Cirrus Logic, Inc. 2005
(All Rights Reserved)
http://www.cirrus.com
114 dB, 192 kHz 8-Ch Codec with S/PDIF Receiver
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
S/PDIF Receiver Compatible with EIAJ
CP1201 and IEC-60958
Recovered S/PDIF Clock or System Clock
Selection
8:2 S/PDIF Input MUX
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
General Description
The CS42528 codec provides two analog-to-digital and
eight digital-to-analog delta-sigma converters, as well
as an integrated S/PDIF receiver.
The CS42528 integrated S/PDIF receiver supports up
to eight inputs, clock recovery circuitry and format auto-
detection. The internal stereo ADC is capable of inde-
pendent channel gain control for single-ended or
differential analog inputs. All eight channels of DAC pro-
vide 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 con-
trols or ADC overflow indicators.
The CS42528 is ideal for audio systems requiring wide
dynamic range, negligible distortion and low noise, such
as A/V receivers, DVD receivers, digital speaker and
automotive audio systems.
The CS42528 is available in a 64-pin LQFP package in
both Commercial (-10° to 70° C) and Automotive
(-40° to 85° C) grades. The CDB42528 Customer Dem-
onstration board is also available for device evaluation.
Refer to
“Ordering Information” on page 89
.
RST
AD0/CS
RXP1/RXP0
RXP3/GPO3
RXP4/GPO4
RXP6/GPO6
SCL/CCLK
SDA/CDOUT
VLC
OMCK
AOUTA1+
AOUTB1+
AOUTA3+
AOUTA2-
AOUTB2-
AOUTB3+
AOUTA4+
AOUTB4+
AINL-
AINR-
FILT+
VQ
REFGND
Ref
ADC#1
ADC#2
Digital Filter
Digital Filter
Gain & Clip
Gain & Clip
CX_SDOUT
ADCIN1
ADCIN2
CX_SCLK
CX_LRCK
CX_SDIN4
CX_SDIN3
CX_SDIN2
CX_SDIN1
VLS
SAI_LRCK
SAI_SCLK
SAI_SDOUT
DGND VD
RMCK
LPFLT
TXP
INT
Rx
Clock/Data
Recovery
S/PDIF
Decoder
DEM
Serial
Audio
Interface
Port
C&U Bit
Data Buffer
Control
Port
DAC#1
DAC#2
DAC#3
DAC#4
DAC#5
DAC#6
DAC#7
DAC#8
D
V
DGND
VD
MUTEC
GPO
A
VARX
AGND
ADC
Serial
Data
AGND
VA
Internal MCLK
CODEC
Serial
Port
Mult/Div
Format
Detector
MUTE
NOVEMBER '05
DS586F1
CS42528