SC5358S Datasheet PDF - Silan Microelectronics

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SC5358S
Silan Microelectronics

Part Number SC5358S
Description 6-CH ELECTRONIC VOLUME CONTROLLER
Page 9 Pages


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SC5358
6-CH ELECTRONIC VOLUME CONTROLLER
DESCRIPTION
SC5358 is a 6-channel electronic volume controller IC mainly designed
for the current multi-channel AV systems. It provides an I2C control
interface, a selectable address and an attenuation range from 0 to –
79dB at 1dB/step.
FEATURES
* CMOS technology
* I2C bus control interface
* Selectable address
* Attenuation range: 0~-79dB(1dB/step)
* Power supply: 5~9V
* S/N>100dB
* High Channel Separation
APPLICATIONS
* 5.1-channel AV system
* Computer multi-media system
* Other multi-channel systems
ORDERING INFORMATION
Part No.
SC5358
SC5358S
Package
DIP-20-300-2.54
SOP-20-375-1.27
BLOCK DIAGRAM
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.1 2004.08.03
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SC5358
ABSOLUTE MAXIMUM RATINGS
Characteristics
Supply Voltage
Operating Temperature
Storage Temperature
Input Voltage
Symbol
VCC
Topr
Tstg
Vi
Ratings
12
-20~+75
-40~+125
-0.3~VCC+0.3
Unit
V
°C
°C
V
ELECTRICAL CHARACTERISTICS(VCC=9V Vi=1Vrms f=1kHz Temperature t=27 )
Characteristics
Symbol
Test conditions
Min.
Operating Voltage
VCC -
4
Operating Current
ICC VCC=9V Vi=0V
-
Volume Attenuation Range
Min. attenuation
ARAN
Max. attenuation
-
-
Attention step
ASTEP -
-
Attention Step Gain Error
GERR -
-
Interchannel Attenuation Gain
-
CERR
Error
-
VCC=9V,=1kHz,volume
Maximum Output Voltage
Vomax attenuation 0dB load resistor is 2.0
50k,THD<1%
Total Harmonic Distortion
THD
f=1kHz,volume Vout=2Vrms
attenuation
0dB,load
Vout=200mVrms
resistor is 50k
-
-
Noise Output
eNO Vin=GND,volume attenuation 0dB. -
Signal To Noise Ratio
Vin=1Vrms,volume attenuation
SNR
0dB
110
Channel Separation
Vin=2.5Vrms,f=1kHz,volume
CS
attenuation 0dB
100
Mute Attenuation
Vin=2.5Vrms,f=1kHz,volume
MUTE
attenuation 0dB.
90
Frequency Response
Vin=2.5Vrms,volume attenuation
FR
0dB THD<3%
-
Input Impedance
Rin f=1kHz
-
Output Impedance
Rout f=1kHz,Vout=100mVrms
-
Typ.
9
7.5
0
79
1
0.5
Max.
12
9
-
-
-
-
0.5 -
Unit
V
mA
dB
dB
dB
dB
2.3 2.5 Vrms
0.07 0.09 %
0.003 0.005 %
2 3 µVrms
120 125 dB
120 125 dB
95 97 dB
0.25 0.27 MHz
48 -
100 -
k
I2C BUS SECTION ELECTRICAL CHARACTERISTICS
Characteristics
Bus high input level
Bus low input level
Symbol
VIH
VIL
-
-
Conditions
Min.
0.5
-
Typ.
-
-
Max.
-
0.2
Unit
VCC
VCC
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.1 2004.08.03
Page 2 of 9
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PIN CONFIGURATION
SC5358
PIN DESCRIPTION
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Pin name
IN1
IN2
IN3
A2
DGND
SCL
SDA
IN4
IN5
IN6
OUT6
OUT5
OUT4
GND
REF
VCC
A3
OUT3
OUT2
OUT1
Pin description
Input channel 1
Input channel 2
Input channel 3
The 3rd bit of address
"0" Usually connected to ground
I2C clock input
I2C data input
Input channel 4
Input channel 5
Input channel 6
Output channel 6
Output channel 5
Output channel 4
Ground
Reference voltage output
Power supply
The 4th bit of address
Output channel 3
Output channel 2
Output channel 1
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.1 2004.08.03
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SC5358
FUNCTION DESCRIPTION
1. I2C bus interface
SC5358 is connected to I2C bus via the SCL and SDA, controlled by MCU.
Date validity
A data on the SDA line must be stable when the SCL line is high state. It can be changed only when the SCL
line is low state. Please refer to the figure below.
Start and stop conditions
A start condition is activated when the SCL is high state and the SDA shifts from high to low state. A stop
condition is activated when the SCL is high state and the SDA shifts from low to high state. Please refer to the
figure below.
SDA
SCL
start condition
stop condition
Start and stop conditions are generated by MCU. The buses are busy after a start condition is activated and are
idle after a while when a stop condition is activated.
Byte format
Every byte transmitted to the SDA line consists of 8 bits. Each byte must be followed by an acknowledge bit.
The MSB is transmitted first.
During the 9th clock pulse, MCU puts a resistive high level on the SDA line and waits for acknowledge signal.
As a peripheral SC5358 must pull down the SDA line if acknowledging, or else keeps high state. Please refer to
the figure below.
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.1 2004.08.03
Page 4 of 9
Free Datasheet http://www.0PDF.com



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