User Guide

46
46
DCD-SA100
MDI
MC
Bias
&
Vref
Current
Segment
DAC
DBCK
PBCK
DSDL
SCK
RST
MS
I
OUT
L+
I
OUT
L–
MDO
Current
Segment
DAC
Advanced
Segmented
DAC
Modulator
×
8
Oversampling
Digital
Filter
&
Function
Control
I/V & Filter
Function
Control
I/F
System Clock Manager
Audio
Data input
I/F
PDATA
Power Supply
DGND
AGND3L
V
DD
V
CC
1
V
CC
2R
AGND2 AGND1
DSDR
P
LRCK
V
CC
2L
V
OUT
L
I
OUT
R+
I
OUT
R–
I/V & Filter
V
OUT
R
V
COM
L
I
REF
V
COM
R
A
GND3R
DGND 8 - Digital ground
V
DD
9 - Digital power supply, +3.3 V
MS
10 I/O Chip select for mode control
‡
MDI 11 I Mode control data input
†
MC 12 I Mode control clock input
†
MDO 13 I/O Mode control read back data output
‡
RST
14 I Reset
†
V
CC
2R 15 - Analog power supply (R-channel DACFF), +5.0 V
AGND3R 16 - Analog ground (R-channel DACFF)
I
OUT
R+ 17 O R-channel analog current output +
I
OUT
R– 18 O R-channel analog current output –
AGND1 19 - Analog ground (internal bias)
I
REF
20 - Output current reference bias pin
V
COM
R 21 - R-channel Internal bias de-coupling pin
V
COM
L 22 - R-channel Internal bias de-coupling pin
V
CC
1 23 - Analog power supply, +5.0 V
AGND2 24 - Analog ground (internal bias)
I
OUT
L+ 25 O L-channel analog current output +
I
OUT
L– 26 O L-channel analog current output –
AGND3L 27 - Analog ground (L-channel DACFF)
V
CC
2L 28 - Analog power supply (L-channel DACFF), +5.0 V
†
Schmitt trigger input, 5 V tolerant.
‡
Schmitt trigger input and output, 3.3 V.
PIN
I/O
PBCK 6 I Bit clock input. Connected GND for DSD mode
†
SCK 7 I System clock input
†
TERMINAL
NAME
DESCRIPTIONS