20
AVR-2801/981
16
1
8
STROBE
1
2
3
4
5
6
7
8
9
10
11
16
15
14
13
12
DATA
CLOCK
Q1
Q2
Q3
Q4
V
SS
VDD
OE
Q5
Q6
Q7
Q8
Q'
S
Q
S
1
2
3
4
5
6
7
8
9
10
11
13
14
12
15
16
28
27
26
25
24
23
22
21
20
19
18
17
V
DD
STB
DATA
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
GND
CK
Vss
1
28
14
TC9273N-004 (AU: IC108)
BU4094BF (CO: IC304, EX: IC103)
CO: IC304
Port Symbol Function
Port Symbol Function
EX: IC103
Function
Note
Dual Power Use: VDD = 8.0~17 V
Single Power Use: VDD = 8.0~18V
GND = 0V
Vss = GND = 0V
Vss =
-
8.0~17V
¾
Input terminal of analog switch.
¾
14
CK
Clock Input
Clock input for data transfer.
15
DATA
Data Input
Serial input for switch setting.
16
STB
Strobe Input
Strobe input for data writing.
Low level
Border Input
Terminal
Q7
FRONT SP-A LED
Q8
Q6
Q5
Q4
Q3
Q2
Q1
LOCK LED
DOLBY DIGITAL LED
dts LED
AUTO LED
DTS LED
PCM LED
FRONT SP-B LED
"FRONT SPEAKER A" LED drive output
"LOCK" LED drive output (H: Lock)
"DOLBY DIGITAL" LED drive output (H: D.Digital)
"dts" LED drive output (H: dts)
"AUTO" LED drive output (H: input mode "AUTO")
"DTS" LED drive output (H: input mode "DTS")
"PCM" LED drive output (H: input mode "PCM")
"FRONT SPEAKER B" LED drive output
Q7
Q8
Q6
Q5
Q4
Q3
Q2
Q1
G
A
B
C
D
E
F
Not Used
Video output switching (DVD/TV)
Video input switching
Video input switching
Video input switching
Video output switching
Video output switching
Video output switching (DVD/TV)
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