Denon DN-A7100 - AV Surround Preamplifier, Service Manual

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IC29 : CS4382A-CQ
114 dB, 192 kHz 8-Channel D/A Converter
Features
z
24-bit Conversion
z
Up to 192 kHz Sample Rates
z
114 dB Dynamic Range
z
-100 dB THD+N
z
Supports PCM and DSD Data Formats
z
Selectable Digital Filters
z
Volume Control with Soft Ramp
– 1 dB Step Size
– Zero Crossing Click-free Transitions
z
Dedicated DSD inputs
z
Low Clock Jitter Sensitivity
z
Simultaneous Support for Two Synchronous
Sample Rates for DVD Audio
z
μ
C 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-emphasis,
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 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.
ORDERING INFORMATION
CS4382-KQZ, Lead Free -10 to 70 °C 48-pin LQFP
CDB4382 Evaluation Board
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 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
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