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PDF SM7347 Data sheet ( Hoja de datos )
| Número de pieza | SM7347 | |
| Descripción | 6 CHANNELS VOLUME CONTROLLER | |
| Fabricantes | SamHop Microelectronics | |
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SAMHOP Microelectronics Corp.
6 CHANNELS VOLUME CONTROLLER
SM7347
GENERAL DESCRIPTION
The SM7347 is 6 channels electronic volume
controlled by 3-wire serial data. The IC is suitable
for use in DVD systems and AV.
APPLICATIONS
* DVD
* Home Audio equipment
* AV
FEATURES
* 4 Output ports
* Built-in microcomputer interface circuit con-
trolled by 16-bit serial data.
* Electronic volume
Volume level......0dB~-79dB, - ∞dB(1dB/
step)
PIN ASSIGNMENTS
OUT4
OUT3
OUT2
OUT1
AVDD
SWin
GNDS
SRin
SLin
GNDC
Cin
GNDR1
GNDR2
GNDL1
GNDL2
Rin
GNDLR
Lin
NC
NC
NC
1 42
2 41
3 40
4 39
5 38
6 37
7 36
8 35
19
01
1
21
31
41
15
61
17
81
29
02
1
34
33
32
31
30
29
28
27
26
25
24
23
22
SDIP 42PIN
DVDD
CLK
DATA
LATCH
DGND
AGND
SWout
SRout
SLout
Cout
Rout
Lout
AVSS1
AVSS2
NC
NC
NC
NC
NC
NC
NC
Page 1
MAY.2003
Datasheet pdf - http://www.DataSheet4U.net/
1 page  
www.DataSheet.co.kr
SAMHOP Microelectronics Corp.
6 CHANNELS VOLUME CONTROLLER
SM7347
ABSOLUTE MAXIMUM RATINGS
Symbol
Vsupply
Pd
Kθ
Topr
Tstg
Parameter
Supply Voltage
Power dissipation
Thermal derating
Operating temperature
Storage temperature
Conditions
AVDD-AVSS
Ta<25oC
Ta>25oC
*standard board
Ratings
16.0
1000
10
-20~+75
-40~+125
Unit
V
mW
mW / oC
oC
oC
THERMAL DERATING (MAXIMUM RATING)
Standard board
1.5
1.0
0.5
0 25 50 75 100 125 150
AMBIENT TEMPERATURE Ta [℃]
Page 5
MAY.2003
Datasheet pdf - http://www.DataSheet4U.net/
5 Page 
www.DataSheet.co.kr
SAMHOP Microelectronics Corp.
6 CHANNELS VOLUME CONTROLLER
SM7347
ELECTRICAL CHARACTERISTICS
( Ta=25℃,AVDD=7.0V, AVSS=-7.0V, DVDD=5.0V, f=1kHz, unless otherwise noted. Rg=1KΩ, Rl=10KΩ,
VOLUME are set to 0dB/FLAT )
(1)Power Supply Characteristics
Parameter
Analog positive circuit
current
Analog negative circuit
current
Digital circuit current
Symbol
Aldd
Alss
Dldd
Test condition
Current at pin 5
No signal input
Current at pin 29,30
No signal input
Current at pin 42
No signal input
Limits
Min typ Max
－ 24 35
－ 24 35
－ 1.0 2.0
Unit
mA
mA
mA
(2)Input／Output Characteristics
Parameter
Symbol
Input resistance
Maximum output
voltage
Pass gain
Ri
VOM
Gv
Distortion
THD
Output noise
voltage
Vn(VOL)
Signal to noise ratio
S/N
Maximum
attenuation
Volume gain
between channels
Crosstalk between
channels
ATTmax
Dvol
CT
Port output current
IL
Test condition
6,8,9,11,16,18pin
6,8,9,11,16,18pin INPUT
31~36pin OUTPUT, THD=1%
Vi=0.2Vrms,FLAT
6,8,9,11,16,18pin INPUT
31~36pin OUTPUT
BW=400~30kHz
Vi=0.2Vrms,RL=10KΩ
31~36pin
JIS-A,VOL=OdB
all gains=0dB; Vo=1Vrms
31~36 pin
JIS-A,VOL=-∞dB
Vo=0.5Vrms,RL=10KΩ,
JIS-A, Rg=1KΩ
RL=22KΩ
Limits
Min typ Max
Unit
35 70 150 KΩ
3.0 4.2 － Vrms
-2.0 0 2.0 dB
－ 0.004 0.09 %
－ 4 6 μVrms
－ 98 105 dB
－ -100 -95 dB
-1.5 0 1.5 dB
－ -100 -75 dB
0.2 － － mA
Page 11
MAY.2003
Datasheet pdf - http://www.DataSheet4U.net/
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet SM7347.PDF ] | |
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