Denon D RCD-M37, Service Manual

Page: 37 / 85

37
RCD-M37 / RCD-M37DAB / D-E500 / D-M37
Pin
No.
Symbol I/O Description
Default
Remarks
26 DVSS3
㧙
Grounding pin for 3.3V DAC circuit
㧙
27
Ro
O
3AI/F
R channel audio output pin of Audio DAC. O
28
DVDD3 㧙
Power supply pin for 3.3V Audio DAC
circuit.
㧙
29
DVR
㧙
Reference voltage pin for Audio DAC.
㧙
30
Lo
O
3AI/F
L channel audio output pin of Audio DAC O
31
DVSS3 㧙
Grounding pin for 3.3V Audio DAC circuit
㧙
No capacitor required to
DVR pin when built-in
audio DAC is not in use,
however , connect 3.3V to
DVDD3 and GND to
DVSS3.
32
VDDT3 㧙 Power supply pin for 3.3 V digital I/O circuit. 㧙 -
33
VSS 㧙 Grounding pin for 3.3V digital circuit 㧙 -
34
VDD1 㧙 Power supply pin for 1.5V digital circuit. 㧙 -
35
VDDM1 㧙 Power supply pin for 1.5V 1Mbit SRAM. 㧙
36 SRAMSTB
I
3I/F
1Mbit SRAM stand-by pin I Schmitt input
37
/RST
I
3I/F
Reset signal input pin. I Schmitt input
38
BUS0
IO
3I/F
Data input/output pin -0 for
microcontroller interface
I
Schmitt input
CMOS PORT
39
BUS1
IO
3I/F
Data input/output pin -1 for
microcontroller interface
I
Schmitt input
CMOS PORT
40
BUS2(So)
IO
3I/F
Data input/output pin -2 for
microcontroller interface (Serial output)
I
Schmitt input
CMOS PORT
41
BUS3(Si)
IO
3I/F
Data input/output pin -3 for
microcontroller interface (Serial input)
I
Schmitt input
CMOS PORT
42
BUCK(CLK)
I
3I/F
Clock input pin for the microcontroller
interface. (Clock input for Serial
communication interface)
I Schmitt input
43
/CCE
I
3I/F
Chip enable signal input pin for
microcontroller interface.
I Schmitt input
44
TEST
I
3I/F
Setting pin for LSI test mode.
(Connect to GND in normal operation)
I Schmitt input
45
IRQ
I
3I/F
DSP interruption pin.(Pull down by 100k
:
when not in use)
I Schmitt input
46
AoUT3(Po4)
O
3I/F
Audio data output pin -3 (DSP general
output port -4)
O CMOS PORT
47
AoUT2(Po5)
O
3I/F
Audio data output pin -2 (DSP general
output port -5)
O CMOS PORT
48
Pio0
I/O
3I/F
DSP general input/output port -0 I
Schmitt input
CMOS PORT
49
Pio1
I/O
3I/F
DSP general input/output port -1 I
Schmitt input
CMOS PORT
50
Pio2
I/O
3I/F
DSP general input/output port -2 I
Schmitt input
CMOS PORT
51
Pio3
I/O
3I/F
DSP general input/output port -3
I
Schmitt input
CMOS PORT
52
VSS 㧙 Grounding pin for 3.3V digital circuit 㧙 -
53
VDDT3 㧙 Power supply pin for 3.3 V digital I/O circuit. 㧙 -
54
SBSY
O
3I/F
Sub code block sync output pin O CMOS PORT
55
SBOK
O
3I/F
CRCC check result output pin for sub code
Q data.
O CMOS PORT