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TC9459F (IC381, IC382, IC383) : Electronic volume control
1.Terminal layout
VSS
1
2
L-OUT
3
NC
4
L-IN
L-ch
L-LD1
5
L-LD2
6
7
L-A-GND
8
NC
9
CS1
NC
10
GND
11
12
CK
3.Pin function
Pin No.
Symbol
1
VSS
2
L-OUT
3
NC
4
NC
5
L-LD1
6
L-LD2
7
L-A-GND
8
NC
9
CS1
10
NC
11
GND
12
CK
2. Block diagram
24
VDD
23
R-OUT
22
NC
21
R-IN
20
R-ch
R-LD1
19
R-LD2
18
R-A-GND
17
NC
16
CS2
15
NC
14
STB
13
DATA
Function
Negative power supply pin
Volume output pin
No connection
No connection
Loudness tap output pin
Loudness tap output pin
Analog GND pin
No connection
Chip select input pin
No connection
Digital GND pin
Clock input pin
Digitized in Heiloo the Netherlands
VSS
1
L-OUT
2
3
NC
50k
/
915TEP
4
L-1N
VR
5
L-LD1
6
L-LD2
L-A-GND
7
8
NC
L-ch 7 to 91
decoder
L-ch data
latch circuit
Shift register (24BIT)
Level shift circuit
CS1
9
NC
10
GND
11
CK
12
Pin No.
Symbol
13
DATA
14
STB
15
NC
16
CS2
17
NC
18
R-A-GND
19
R-LD2
20
R-LD1
21
R-IN
22
NC
23
R-OUT
24
VDD
RX-8010RBK/ RX-8012RSL
VDD
24
R-OUT
23
22
NC
R-IN
21
Same as L-ch
R-LD1
20
Circuit
R-LD2
19
R-A-GND
18
17
NC
R-ch 7 to 91
decoder
R-ch data
latch circuit
16
CS2
15
NC
STB
14
13
DATA
Function
Data input pin
Strobe input pin
No connection
Chip select input pin
No connection
Analog GND pin
Loudness tap output pin
Loudness tap output pin
Volume input pin
No connection
Volume output pin
Positive power supply pin
2/17/2019
1-27
Not for sale!
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