DVR-104
51
5
7
8
5
7
8
C
D
F
A
B
E
Block Diagram
Pin Assignment
Pin Function
PCM1748E (DVR R4 MAIN ASSY : IC270)
D/A Converter IC
(TOP VIEW)
PIN
NAME
TYPE
FUNCTION
1
BCK
IN
Audio Data Bit Clock Input.
(1)
2
DATA
IN
Audio Data Digital Input.
(1)
3
LRCK
IN
L-Channel and R-Channel Audio Data Latch En-
able Input.
(1)
4
DGND
–
Digital Ground
5
V
DD
–
Digital Power Supply, +3.3V
6
V
CC
–
Analog Power Supply, +5V
7
V
OUT
L
OUT
Analog Output for L-Channel.
8
V
OUT
R
OUT
Analog Output for R-Channel.
9
AGND
–
Analog Ground
10
V
COM
–
Common Voltage Decoupling.
11
ZEROR/
OUT
Zero Flag Output for R-Channel/Zero Flag Output
ZEROA
for L/R-Channel.
12
ZEROL/NA
OUT
Zero Flag Output for L-Channel/No Assign.
13
MD
IN
Mode Control Data Input.
(2)
14
MC
IN
Mode Control Clock Input.
(2)
15
ML
IN
Mode Control Latch Input.
(2)
16
SCK
IN
System Clock Input.
NOTES: (1) Schmitt-trigger input, 5V tolerant. (2) Schmitt-trigger with internal
pull-down, 5V tolerant.
Serial
Input
I/F
Output Amp and
Low-Pass Filter
DAC
8x
Oversampling
Digital Filter
with
Function
Controller
Enhanced
Multi-Level
Delta-Sigma
Modulator
Output Amp and
Low-Pass Filter
DAC
BCK
LRCK
DATA
ML
MC
MD
Function
Control
I/F
System Clock
Manager
Zero Detect
Power Supply
V
OUT
L
V
COM
V
OUT
R
V
DD
DGND
ZEROL
ZEROR
SCK
System Clock
V
CC
AGND
BCK
SCK
ML
MC
MD
ZEROL/NA
ZEROR/ZEROA
V
COM
AGND
1
16
15
14
13
12
11
10
9
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