Harman Kardon HK 990/230, Service Manual

Page: 69 / 141

Copyright ¤ Cirrus Logic, Inc. 2005
(All Rights Reserved)
http://www.cirrus.com
CS5361
114 dB, 192 kHz, Multi-Bit Audio A/D Converter
Features
z
Advanced Multi-bit Delta-sigma Architecture
z
24-bit Conversion
z
114 dB Dynamic Range
z
-105 dB THD+N
z
System Sampling Rates up to 192 kHz
z
135 mW Power Consumption
z
High-pass Filter and DC Offset Calibration
z
Supports Logic Levels Between 5 and 2.5 V
z
Differential Analog Architecture
z
Overflow Detection
z
Pin-compatible with the CS5381
General Description
The CS5361 is a complete analog-to-digital converter for
digital audio systems. It performs sampling, analog-to-
digital conversion, and anti-alias filtering. The CS5361
generates 24-bit values for both left and right inputs in
serial form at sample rates up to 192 kHz per channel.
The CS5361 uses a 5th-order, multi-bit, delta-sigma
modulator followed by digital filtering and decimation.
This removes the need for an external anti-alias filter.
The ADC uses a differential architecture which provides
excellent noise rejection.
The CS5361 is ideal for audio systems requiring wide dy-
namic range, negligible distortion, and low noise. These
applications include A/V receivers, DVD-R, CD-R, digital
mixing consoles, and effects processors.
ORDERING INFORMATION
CS5361-KSZ -10° to 70°C 24-pin SOIC Lead Free
CS5361-KZZ -10° to 70°C 24-pin TSSOP Lead Free
CS5361-DZZ -40° to 85°C 24-pin TSSOP Lead Free
CDB5361
Evaluation Board
Voltage Reference
Serial Output Interface
Digital
Filter
High
Pass
Filter
High
Pass
Filter
Decimation
Digital
Filter
Decimation
DAC
-
+
S/H
DAC
-
+
S/H
AINR+
SCLK
SDOUT MCLK
RST
VQ LRCK
AINR-
AINL+
AINL-
FILT+
I
2
S/LJ
M/S
HPF
MODE0
MODE1
REFGND
V
L
MDIV
LP Filter
LP Filter
∆Σ
∆Σ
OVFL
FEB ‘05
DS467F2
6 7