Denon AVR-3805

30
30
AVR-3805 / AVC-3890
SN65LVDS32PW (AD: IC801)
SN74LVC139APWR (DS: IC301)
TC9459F (AD: IC381)
24
1
12
L-LD2
8
L-ch7 to 91decoder
R-ch latch circuit
R-ch7 to 91decoder
9
16
19
3
2
4
5
6
7
10
11
12
24
22
23
21
20
18
17
15
14
13
1
NC
L-OUT
L-IN
L-LD1
L-A-GND
NC
NC
GND
CK
V
SS
V
DD
NC
R-OUT
R-LD1
R-LD2
R-A-GND
NC
CS2
NC
STB
DATA
R-IN
50k
W
/
91STEP
VR
Same
as L-ch
L-ch latch circuit
Shift register (24Bit)
Level shift circuit
CS1
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
1B
1A
1Y
G
2Y
2A
2B
GND
V
CC
4B
4A
4Y
G
3Y
3A
3B
G
G
1A
1B
2A
2B
3A
3B
4A
4B
4
12
2
1
6
7
10
9
14
15
3
5
11
13
1Y
2Y
3Y
4Y
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
1G
1A
1B
1Y0
1Y1
1Y2
1Y3
GND
V
CC
2G
2A
2B
2Y0
2Y1
2Y2
2Y3
FUNCTION TABLE
(each decoder/demultiplexer)
INPUTS
OUTPUTS
G
SELECT
OUTPUTS
G
B A Y3 Y2 Y1 Y0
L L L H H H L
L L HHHLH
L H LHLHH
L H HLHHH
H X X H H H H
TC74VHCU04FT
(AD: IC803, 804)
1
2
3
4
5
6
7
14
13
12
11
10
9
8
1A
1Y
2A
2Y
3A
3Y
GND
Vcc
6A
6Y
5A
5Y
4A
4Y