Denon DN-X600, Service Manual

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87
PCM1795 (U2100)
PCM1795 Pin Function
TERMINAL
NAME NO. I/O DESCRIPTION
SCK 7 I System clock input
(2)
V
CC
1 23 — Analog power supply, 5 V
V
CC
2L 28 — Analog power supply (left channel DACFF), 5 V
V
CC
2R 15 — Analog power supply (right channel DACFF), 5 V
V
COM
L 22 — Left channel internal bias decoupling pin
V
COM
R 21 — Right channel internal bias decoupling pin
V
DD
9 — Digital power supply, 3.3 V
ZEROL 1 I/O Zero flag for left channel
(4)
ZEROR 2 I/O Zero flag for right channel
(4)
ZEROL
ZEROR
MSEL
LRCK
DATA
BCK
SCL
DGND
V
DD
MS
MDI
MC
MDO
RST
V 2L
CC
AGND3L
I L
-
OUT
I L+
OUT
AGND2
V 1
CC
V L
COM
V R
COM
I
REF
AGND1
I R
-
OUT
I R+
OUT
AGND3R
V 2R
CC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
TERMINAL
NAME NO. I/O DESCRIPTION
AGND1 19 — Analog ground (internal bias)
AGND2 24 — Analog ground (internal bias)
AGND3L 27 — Analog ground (left channel DACFF)
AGND3R 16 — Analog ground (right channel DACFF)
BCK 6 I Bit clock input
(1)
DATA 5 I Serial audio data input
(2)
DGND 8 — Digital ground
I
OUT
L+ 25 O Left channel analog current
I
OUT
L– 26 O Left channel analog current output–
I
OUT
R+ 17 O Right channel analog current
I
OUT
R– 18 O Right channel analog current output–
I
REF
20 — Output current reference bias pin
LRCK 4 I Left and right clock (f
S
) input
(2)
MC 12 I Mode control clock input
(2)
MDI 11 I Mode control data input
(2)
MDO 13 I/O Mode control readback data output
(3)
MS 10 I/OI Mode control chip-select input
(4)
; active low
MSEL 3 I I
2
C/SPI select
(2)
; active low SPI select
RST 14 I Reset
(2)
; active low
(1) Schmitt-trigger input, 5-V tolerant.
(2) Schmitt-trigger input, 5-V tolerant.
(3) 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.
(4) Schmitt-trigger input and output. 5-V tolerant input and CMOS output.