Denon DN-S3700 Service Manual page 47

PCM1791ADBR (IC802)
LRCK
1 28
BCK 27
2
DATA 3 26
MUTE
4 25
SCK
5 24
RST 23
6
V 7 22
DD
DGND
8 21
AGNDF
9 20
V R 19
10
CC
AGNDR
11 18
V R−
12 17
OUT
V R+
13 16
OUT
V
15
14
COM
Pin Description
TERMINAL
NAME PIN
AGNDC 16
AGNDF 9
AGNDL 19
AGNDR 11
BCK 2
DATA 3
DGND 8
LRCK 1
MC 27
MDI 26
MDO 25
MS 28
MSEL 24
MUTE 4
RST 6
SCK 5
V CC C 15
V CC F 21
V CC L 20
V CC R 10
V COM 14
V DD 7
V OUT L+ 17
V OUT L– 18
V OUT R+ 13
V OUT R– 12
ZEROL 23
ZEROR 22
(1) Schmitt-trigger input, 5-V tolerant
(2) Schmitt-trigger input and output. 5-V tolerant input. In I 2 C mode, this pin becomes an open-drain 3-state output; otherwise, this pin is a CMOS
output.
(3) 3-state output
(4) Schmitt-trigger input and output. 5-V tolerant input and CMOS output
Block Diagram
MS
MC
MDI
LRCK
MDO
Audio
BCK
MSEL
Data Input
DATA I/F
ZEROL
ZEROR
V F
CC
V L
CC
AGNDL
MUTE
V L−
OUT
RST
V L+
OUT
AGNDC MSEL
V C
CC
MDO
MDI
Function
Control
MC
I/F
MS
ZEROL
Zero
ZEROR
Detect
I/O I/O
− Analog ground (internal bias and current DAC)
− Analog ground (DACFF)
− Analog ground (L-channel I/V)
− Analog ground (R-channel I/V)
Bit clock input (1)
I
Serial audio data input (1)
I
− Digital ground
Left and right clock (f S ) input (1)
I
Mode control clock input (1)
I
Mode control data input (2)
I/O
Mode control readback data output (3)
O
Mode control chip select input (4)
I/O
I 2 C/SPI select (1)
I
Analog output mute control (1)
I
Reset (1)
I
System clock input (1)
I
− Analog power supply (internal bias and current DAC), 5 V
− Analog power supply (DACFF), 5 V
− Analog power supply (L-channel I/V), 5 V
− Analog power supply (R-channel I/V), 5 V
− Internal bias decoupling pin
− Digital power supply, 3.3 V
O L-channel analog voltage output +
O L-channel analog voltage output –
O R-channel analog voltage output +
O R-channel analog voltage output –
O Zero flag for L-channel
O Zero flag for R-channel
DN-S3700
8
Oversampling
Advanced
Digital
Segment
Filter
DAC
and
Modulator
Function
Control
System
Clock
Power Supply
Manager
DESCRIPTIONS DESCRIPTIONS
47
Current
V OUT L−
Segment
DAC
V OUT L+
and
I/V Buffer
D/S and Filter
Bias
V COM
and
Vref
Current
V OUT R+
Segment
DAC
V OUT R−
and
I/V Buffer
D/S and Filter