CS42418
110 dB, 192 kHz 8-Ch Codec with PLL
Features
Eight 24-bit D/A, two 24-bit A/D converters
110 dB DAC / 114 dB ADC dynamic range
-100 dB THD+N
System sampling rates up to 192 kHz
Integrated low-jitter PLL for increased system
jitter tolerance
PLL clock or OMCK system clock selection
7 configurable general purpose outputs
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 5 V and 1.8 V
General Description
The CS42418 CODEC provides two analog-to-digital and eight
digital-to-analog Delta-Sigma converters, as well as an inte-
grated PLL, in a 64-pin LQFP package.
The CS42418 integrated PLL provides a low-jitter system
clock. The internal stereo ADC is capable of independent chan-
nel 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 con-
trols or ADC overflow indicators.
The CS42418 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
CS42418-CQZ
-10° to 70° C
CS42418-DQZ
-40° to 85° C
CDB42428
Evaluation Board
64-pin LQFP
64-pin LQFP
VA
GPO1
GPO2
GPO3
GPO4
GPO5
GPO6
GPO7
MU TEC
AGN D
R EFGN D
VQ
F ILT+
OMC K
RM CK
LPFLT
V LC
D GND VD
INT
Mult/Div
GPO
Internal Voltage
R eference
Control
Port
M ute
PLL
RST
A D0/C S
AD 1/CD IN
S DA/CD OUT
S CL/C C LK
A INL+
A IN L-
AIN R+
AINR -
A DC #1
D igital F ilter
Gain & C lip
AD C#2
D igital F ilter
Gain & C lip
ADC
Serial
Audio
Port
Level Translator
ADC IN 1
A DC IN 2
ADC _SDOU T
AD C_LRC K
ADC _SCLK
VLS
D AC_LR CK
AOU TA1+
AOU TA1-
A OUTB 1+
AOU TB1-
A OUTA 2+
AOU TA2-
Analog F ilter
AOU TB2+
AOU TB2-
A OUTA 3+
AOU TA3-
A OUTB 3+
AOUT B3-
AOU TA4+
AOUTA 4-
AOU TB4+
AOU TB4-
D AC#1
Level Translator
D AC#2
D AC #3
Volume Control
D igital F ilter
D AC Serial Audio Port
D AC_S CLK
D AC_SD IN 1
DA C_SD IN 2
DAC _SD IN 3
DAC _SDIN4
D AC#4
D AC#5
D AC #6
D AC#7
DAC #8
Advance Product Information
Cirrus Logic, Inc.
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. 2004
(All Rights Reserved)
©
JUL ‘04
DS603A2
1
CIRRUS [ CIRRUS LOGIC ]
