Pioneer Elite BDP-HD1, Service Manual, Page: 134 / 140

BDP-HD1
134
1 2 3 4
1 2 3 4
C
D
F
A
B
E
PCM1738EG-3 (IC3001, 3401, 3501)
• DIGITAL-TO-ANALOG CONVERTER
Pin Arrangement (Top view)
Block Diagram
Pin Function
RST
ZEROL
ZEROR
LRCK
DATA
BCK
SCKI
DGND
V
DD
SCKO
MDO
MDI
MC
CS
V
CC
3
AGND2
I
OUT
L–
I
OUT
L+
V
CC
2
V
CC
1
V
COM
3
I
REF
V
COM
2
V
COM
1
AGND1
I
OUT
R+
I
OUT
R–
MUTE
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
PCM1738
Input
I/F
8x
Oversampling
Digital
Filter
and
Function
Control
Advanced
Segment
DAC
Modulator
BCK
System Clock
Manager
ZERO Detect
Power Supply
RST
MUTE
CS
MC
MDI
ZEROL
ZEROR
SCKI
System Clock
SCKO
MDO
Function
Control
I/F
Current
Segment
DAC
Bias
and V
REF
Current
Segment
DAC
V
CC
1
V
CC
2
V
C
C
3
V
DD
DGND
AGND1
AGND2
LRCK
DATA
I
OUT
L+
I
OUT
L–
IV and Filter
I
OUT
R–
I
OUT
R+
V
COM
2
I
REF
V
COM
1
V
COM
3
IV and Filter
PIN NAME TYPE FUNCTION
1 RST IN Reset
(1)
2 ZEROL OUT Zero Flag for L-Channel.
3 ZEROR OUT Zero Flag for R-Channel.
4 LRCK IN Left/Right clock (f
S
) input for normal operation.
(1)
WDCK clock input in external DF mode. Con-
nected to GND in DSD mode.
5 DATA IN Serial Audio data input for normal operation.
(1)
L-channel audio data input for external DF and
DSD modes.
6 BCK IN Bit Clock. Input. Connected to GND for DSD mode.
(1)
7 SCKI IN System Clock Input for normal operation.
(1)
BCK (64f
S
) clock input for DSD mode.
8 DGND – Digital Ground
9 V
DD
– Digital Supply, +3.3V
10 SCKO OUT System Clock Output
11 MDO OUT Serial data output for function control register.
(2)
12 MDI IN Serial data input for function control register.
(1)
13 MC IN Shift Clock for function control register.
(1)
14 CS IN Mode Control chip select and latch signal.
(1)
15 MUTE IN Analog output mute control for normal operation.
(1)
R-channel audio data input for external DF and
DSD modes.
16 I
OUT
R– OUT R-Channel Analog Current Output –
17 I
OUT
R+ OUT R-Channel Analog Current
18 AGND1 – Analog Ground
19 V
COM
1 – Internal Bias Decoupling Pin
20 V
COM
2 – Common Voltage for I/V
21 I
REF
– Output current reference bias pin. Connect 16k
resistor to GND.
22 V
COM
3 – Internal Bias Decoupling Pin
23 V
CC
1 – Analog Supply, +5.0V
24 V
CC
2 – Analog Supply, +5.0V
25 I
OUT
L+ OUT L-Channel Analog Current
26 I
OUT
L– OUT L-Channel Analog Current Output –
27 AGND2 – Analog Ground
28 V
CC
3 – Analog Power Supply, +5.0V
NOTES: (1) Schmitt-trigger input, 5V tolerant. (2) Tristate output.