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PDF SC9153A Data sheet ( Hoja de datos )
| Número de pieza | SC9153A | |
| Descripción | ELECTRONIC VOLUME CONTROLLER | |
| Fabricantes | Silan Microelectronics | |
| Logotipo |  |
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ELECTRONIC VOLUME CONTROLLER
SC9153A
DESCRIPTION
The SC9153A is CMOS IC which has been designed for
electronization volume control of audio equipment,etc.
FEATURES
*Wide operating voltage range(VDD=6V ~ 12V)
*Low current comsumption .
*Attenuation can be controlled from 0dB to –66dB by 2dB/step
*Both of dual power suppliers of (+) and (-) and a single power
supply can be used.
*Be capable of controlling attenuation by means of the built-in
oscillator and the up/down terminals.
DIP-16
BLOCK DIAGRAM
U/D 10
OSC 9
OSC
VDD
16
U/D 7 Bits Bidirectional
CK shift registor
INT
L-OUT1 2
L-IN1 3
A-GND 4
L-IN2 5
L-OUT2 6
A-SW
A-SW
A-SW
A-SW
A-SW
A-SW
A-SW
A-SW
A-SW
A-SW
A-SW
A-SW
A-SW
VDD
CK
CK
VSS
1
U/D 6 Bits Bidirectional
CK shift registor
INT
Auto Initialize
Circuit
Constant
Current
Circuit
7 INH
8 DCO
CK A-SW
A-SW
A-SW
A-SW
A-SW
A-SW
A-SW
15 R-OUT1
14 R-IN1
CK
A-SW
A-SW
A-SW
A-SW
A-SW
A-SW
13 A-GND
12 R-IN2
11 R-OUT2
1
1 page  
SC9153A
STEP
0
1
2
3
4
5
6
7
8
9
10
11
12
13
DCO
0
IDCO=100µA±30µA
2 × IDCO
3 × IDCO
4 × IDCO
5 × IDCO
6 × IDCO
7 × IDCO
8 × IDCO
9 × IDCO
10 × IDCO
11 × IDCO
12 × IDCO
13 × IDCO
ATTENUATION
-64dB ~ ∝
-60dB ~ -62dB
-54dB ~ -58dB
-50dB ~ -52dB
-44dB ~ -48dB
-40dB ~ -42dB
-34dB ~ -38dB
-30dB ~ -32dB
-24dB ~ -28dB
-20dB ~ -22dB
-14dB ~ -18dB
-10dB ~ -12dB
-4dB ~ -8dB
0dB ~ -2dB
8
Step 0
REMARKS
13
12
11
1kΩ 10
Vss 9
8
7
6
About
1.3V
5
4
3
2
1
1 Step is about 100mV±30mV
3.ATTENUATOR
The attenuator unit consist of diffused resistors and analog switches. Attenuator-1 attenuates 0 ~ 60dB at
10dB/step while Attenuator-2 attenuates 2~8db at 2dB/step, a total of 0~ 66dB at 2dB/step.
IN1
R1
R1
R1
R1
R1
R1
A-GND
R1
Buffer
0
OUT1
IN2
R2
-10
R2
-20
R2
-30
R2
-40
0
OUT2
-2
-4
-6
-8
-50
-60
Attenuator-1
R1=50kΩ(typical)
R2=20kΩ(typical)
R2 -∞
Attenuator-2
5
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet SC9153A.PDF ] | |
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