Harman Kardon AVR247 Service Manual page 182

AVR247
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 +/-15dB Input Gain Adjust for ADC
Differential Analog Architecture
Supports logic levels between 5 V and 1.8 V.
Preliminary Product Information
Cirrus Logic, Inc.
http://www.cirrus.com
VARX AGND
TXP
RXP0
RXP1/GPO1
RXP2/GPO2
RXP3/GPO3
Clock/Data
RXP4/GPO4
Rx
RXP5/GPO5 Recovery
RXP6/GPO6
RXP7/GPO7
GPO
M UTEC
M UTE
FILT+
VQ Ref
REFGND
VA
AGND
AINL+
ADC#1 Digital Filter
AINL-
AINR+
ADC#2 Digital Filter
AINR-
AOUTA1+
AOUTA1-
AOUTB1+
AOUTB1-
AOUTA2+
AOUTA2-
AOUTB2+
AOUTB2-
AOUTA3+
AOUTA3-
AOUTB3+
AOUTB3-
AOUTA4+
AOUTA4-
AOUTB4+
AOUTB4-
General Description
The CS42528 codec provides two analog-to-digital and eight
digital-to-analog delta-sigma converters, as well as an integrat-
ed S/PDIF receiver, in a 64-pin LQFP package.
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 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.
The CS42528 is ideal for audio systems requiring wide dynam-
ic range, negligible distortion and low noise, such as A/V
receivers, DVD receivers, digital speaker and automotive audio
systems.
ORDERING INFORMATION
CS42528-CQZ
-10° to 70° C 64-pin LQFP
CS42528-DQZ
-40° to 85° C 64-pin LQFP
CDB42528
Evaluation Board
LPFLT DGND DGND VD VD
C&U Bit
Data Buffer
S/PDIF
Decoder
Form at
Detector
Internal M CLK
DEM
Gain & Clip
ADC
Serial
Data
Gain & Clip
DAC#1
DAC#2
DAC#3
DAC#4
DAC#5
DAC#6
DAC#7
DAC#8
182
harman/kardon
CS42528
Lead Free
Lead Free
INT
RST
Control
AD0/CS
Port
AD1/CDIN
SDA/CDOUT
SCL/CCLK
VLC
OM CK
M ult/Div RM CK
Serial
SAI_LRCK
Audio
SAI_SCLK
Interface
SAI_SDOUT
Port
VLS
ADCIN1
ADCIN2
CX_SDO UT
CX_LRCK
CX_SCLK
CX_SDIN1
CX_SDIN2
CX_SDIN3
CODEC
Serial
CX_SDIN4
Port