Cirrus Logic CS4382 - Manual

Copyright
© Cirrus Logic, Inc. 2008
(All Rights Reserved) http://www.cirrus.com
114 dB, 192 kHz 8-Channel D/A Converter
Features
 24-bit Conversion
 Up to 192 kHz Sample Rates
 114 dB Dynamic Range
 -100 dB THD+N
 Supports PCM and DSD Data Formats
 Selectable Digital Filters
 Volume Control with Soft Ramp
– 1 dB Step Size
– Zero Crossing Click-Free Transitions
 Dedicated DSD Inputs
 Low Clock-Jitter Sensitivity
 Simultaneous Support for Two Synchronous
Sample Rates for DVD Audio
 μC or Stand-Alone Operation
Description
The CS4382 is a complete 8-channel digital-to-analog
system including digital interpolation, fifth-order delta-
sigma digital-to-analog conversion, digital de-empha-
sis, volume control and analog filtering. The advantages
of this architecture include: ideal differential linearity, no
distortion mechanisms due to resistor matching errors,
no linearity drift over time and temperature and a high
tolerance to clock jitter.
The CS4382 is available in a 48-pin LQFP package in
Commercial grade (-10°C to +70°C). The CDB4382
Customer Demonstration Board is also available for de-
vice evaluation and implementation suggestions.
Please see
“Ordering Information” on page 42 for com-
plete details.
The CS4382 accepts PCM data at sample rates from
4 kHz to 192 kHz, DSD audio data, and operates over a
wide power supply range. These features are ideal for
multi-channel audio systems including DVD players,
SACD players, A/V receivers, digital TV’s, mixing con-
soles, effects processors, and automotive audio
systems.
I
E x t e r n a l
M u t e C o n t r o l
R S T
V o l u m e C o n t r o l I n t e r p o l a t i o n F i lt e r A n a l o g F i l t e r Δ Σ D A C
M i x e r
V o l u m e C o n t r o l Δ Σ D A C A n a l o g F i l t e r I n t e r p o l a t i o n F i l t e r
V o l u m e C o n t r o l I n t e r p o l a t i o n F i lt e r A n a l o g F i l t e r Δ Σ D A C
M i x e r
V o l u m e C o n t r o l Δ Σ D A C A n a l o g F i l t e r I n t e r p o l a t i o n F i lt e r
V o l u m e C o n t r o l I n t e r p o l a t i o n F i lt e r A n a l o g F i l t e r Δ Σ D A C
M i x e r
V o l u m e C o n t r o l
Δ Σ D A C A n a l o g F i l t e r
A O U T B 4 -
I n t e r p o l a t i o n F i lt e r
M C L K
Se
ri
a
l
P
o
rt
S C L /C C L K (M 1 ) S D A /C D IN (M 2 ) A D 0 /C S (M 0 ) V L C
÷ 2
V Q
F IL T +
V A G N D V D
M U T E C 1 D S D _ S C L K (M 3 )
G N D
C o n tro l P o rt(S ta n d -A lo n e M o d e S e le c t)
V L S
L R C K
S D I N 1
S D I N 2
S D I N 3
2 S C L K
L R C K 2
S C L K
D S D x x
8
A O U T B 4 +
A O U T A 4 -
A O U T A 4 +
A O U T B 2 -
A O U T B 2 +
A O U T A 2 -
A O U T A 2 +
A O U T B 1 -
A O U T B 1 +
A O U T A 1 -
A O U T A 1 +
V o l u m e C o n t r o l I n t e r p o l a t i o n F i lt e r A n a l o g F i l t e r Δ Σ D A C
M i x e r
V o l u m e C o n t r o l Δ Σ D A C A n a l o g F i l t e r I n t e r p o l a t i o n F i lt e r
A O U T B 3 -
A O U T B 3 +
A O U T A 3 -
A O U T A 3 +
S D I N 4
M U T E C 2 3 4
1
1
FEB '08
DS514F2
CS4382