Harman Kardon AVR 1650, Service Manual

Page: 134 / 159

Preliminary Product Information
Cirrus Logic, Inc.
http://www.cirrus.com
CS42528
114 dB, 192 kHz 8-Ch Codec with S/PDIF Receiver
Features
z
Eight 24-bit D/A, two 24-bit A/D Converters
z
114 dB DAC / 114 dB ADC Dynamic Range
z
-100 dB THD+N
z
System Sampling Rates up to 192 kHz
z
S/PDIF Receiver Compatible with EIAJ CP1201
and IEC-60958
z
Recovered S/PDIF Clock or System Clock
Selection
z
8:2 S/PDIF Input MUX
z
ADC High-pass Filter for DC Offset Calibration
z
Expandable ADC Channels and One-line Mode
Support
z
Digital Output Volume Control with Soft Ramp
z
D/-15dB Input Gain Adjust for ADC
z
Differential Analog Architecture
z
Supports logic levels between 5 V and 1.8 V.
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 Lead Free
CS42528-DQZ
-40° to 85° C 64-pin LQFP Lead Free
CDB42528
Evaluation Board
RST
RXP0
RXP1/GPO1
AD0/CS
SCL/CCLK
SDA/CDOUT
AD1/CDIN
VLC
AOUTA1-
AOUTA3-
AOUTA2-
AOUTB2-
AOUTB1-
AOUTB3-
AOUTA4-
AOUTB4-
AINL+
AINL-
AINR+
AINR-
FILT+
REFGND
VQ 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
OMCK
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
ig
ita
l F
ilt
er
V
ol
um
e
C
on
tr
ol
DGND
RXP2/GPO2
RXP3/GPO3
RXP4/GPO4
RXP5/GPO5
RXP6/GPO6
RXP7/GPO7
VD
MUTEC
GPO
MUTE
A
na
lo
g
F
ilt
er
VARX AGND
ADC
Serial
Data
AGND
VA
Internal MCLK
CODEC
Serial
Port
Mult/Div
Format
Detector
AVR 1650 harman/kardon
134