Bose FreeSpace 4400 Service Manual page 95

Integrated Circuit Diagrams
PINOUT DIAGRAM
VCOM 1
AINR+ 2
AINR- 3
AINL+ 4
AINL- 5
6
VREF
AGND 7
VA 8
P/S
9
MCLK 10
LRCK 11
BICK 12
SDTO 13
S D I T 1
N . o P n i N a m e
1 VCOM
2 AINR+
3 AINR-
4 AINL+
5 AINL-
6 VREF
7 AGND
8 VA
9 P/S
10 MCLK
11 LRCK
12 BICK
13 SDTO
14 SDTI
CDTI
15
CKS0
CCLK
16
CKS1
CSN
17
DIF
18 DFS
19 PDN
20 DEM0
21 DEM1
22 VT
23 VD
24 DGND
25 AOUTL-
26 AOUTL+
27 AOUTR-
28 AOUTR+
28 AOUTR+
27 AOUTR-
26 AOUTL+
25 AOUTL-
24 DGND
AK4528
23 VD
Top 22 VT
View
21 DEM1
20 DEM0
19 PDN
18 DFS
17 CSN(DIF)
16 CCLK(CKS1)
4 1 5 C D I T C ( K
/ I O
Common Voltage Output Pin, VA/2
O
Bias voltage of ADC inputs and DAC outputs.
I Rch Positive Input Pin
I Rch Negative Input Pin
I Lch Positive Input Pin
I Lch Negative Input Pin
Voltage Reference Input Pin, VA
I Used as a voltage reference by ADC & DAC. VREF is connected
externally to filtered VA.
- Analog Ground Pin
- Analog Power Supply Pin, 4.75
Parallel/Serial Mode Select Pin
I
"L": Serial Mode, "H": Parallel Mode
I Master Clock Input Pin
I Input/Output Channel Clock Pin
I Audio Serial Data Clock Pin
O Audio Serial Data Output Pin
I Audio Serial Data Input Pin
I Control Data Input Pin in Serial Mode
I Master Clock Select Pin
I Control Data Clock Pin in Serial Mode
I Master Clock Select Pin
I Chip Select Pin in Serial Mode
Digital Audio Interface Select Pin
I
"L": 24bit MSB justified, "H": I
I Double Speed Sampling Mode Pin
Power-Down Mode Pin
I
"H": Power up,
I De-emphasis Control Pin
I De-emphasis Control Pin
- Output Buffer Power Supply Pin, 2.7
- Digital Power Supply Pin, 4.75
- Digital Ground Pin
O Lch Negative Analog Output Pin
O Lch Positive Analog Output Pin
O Rch Negative Analog Output Pin
O Rch Positive Analog Output Pin
AK4528VF, 24 bit CODEC
BLOCK DIAGRAM
AINL+
AINL-
AINR+
AINR-
VCOM
AOUTL+
AOUTL-
AOUTR+
AOUTR-
VREF
Control Register I/F
VA
AGND
P/S
CSN CCLK
(DIF) (CKS1) (CKS0)
S ) 0
PIN/FUNCTION
F u n t c o i n
5.25V
2
S compatible
"L": Power down reset and initialize the control register.
5.25V
5.25V
95
VD
VT
DGND
PDN
ADC
HPF
LRCK
Audio I/F
BICK
Controller
SDTO
SDTI
DATT
DAC
SMUTE
DEM0
Clock Divider DEM1
MCLK DFS
CDTI