CS4228
24-Bit, 96 kHz Surround Sound Codec
Features
l
Two
Description
The CS4228 codec provides two analog-to-digital and
six digital-to-analog delta-sigma converters, along with
volume controls, in a compact +5/+3.3 V, 28-pin SSOP
device. Combined with an IEC958 (SPDIF) receiver (like
the CS8414) and surround sound decoder (such as one
of the CS492x or CS493xx families), it is ideal for use in
DVD player, A/V receiver and car audio systems sup-
porting multiple standards such as Dolby Digital AC-3,
AAC, DTS, Dolby ProLogic, THX, and MPEG.
A flexible serial audio interface allows operation in Left
Justified, Right Justified, I
2
S, or One Line Data modes.
ORDERING INFORMATION
CS4228-KS -10° to +70° C 28-pin SSOP
CDB4228
Evaluation Board
24-bit A/D Converters
-
102 dB dynamic range
-
90 dB THD+N
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Six
24-bit D/A Converters
-
103 dB dynamic range and SNR
-
90 dB THD+N
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Sample
rates up to 100 kHz
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Pop-free Digital Output Volume Controls
-
90.5 dB range, 0.5 dB resolution (182 levels)
-
Variable smooth ramp rate, 0.125 dB steps
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Mute
Control pin for off-chip muting circuits
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On-chip Anti-alias and Output Filters
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De-emphasis filters for 32, 44.1 and 48 kHz
I
SCL/CCLK
SDA/CDIN
AD0/CS
MUTEC
RST
VD
VL
VA
CONTROL PORT
MUTE CONTROL
FILT
ANALOG LOW PASS AND
OUTPUT STAGE
DIGITAL FILTERS
WITH DE-EMPHASIS
LRCK
SCLK
SDIN1
SDIN2
SDIN3
SERIAL AUDIO
DATA INTERFACE
DIGITAL VOLUME
DIGITAL VOLUME
DIGITAL VOLUME
DIGITAL VOLUME
DIGITAL VOLUME
DIGITAL VOLUME
∆Σ
DAC #1
∆Σ
DAC #2
∆Σ
DAC #3
∆Σ
DAC #4
∆Σ
DAC #5
∆Σ
DAC #6
AOUT1
AOUT2
AOUT3
AOUT4
AOUT5
AOUT6
SDOUT
DIGITAL FILTERS
LEFT ADC
RIGHT ADC
AINL+
AINL-
AINR+
AINR-
CLOCK MANAGER
MCLK
DGND
AGND
Advance Product Information
P.O. Box 17847, Austin, Texas 78760
(512) 445 7222 FAX: (512) 445 7581
http://www.cirrus.com
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
Copyright
©
Cirrus Logic, Inc. 1999
(All Rights Reserved)
JUL ‘99
DS307PP1
1
CIRRUS [ CIRRUS LOGIC ]
