SAMHOP Microelectronics Corp.
SM7347
6 CHANNELS VOLUME CONTROLLER
ELECTRICAL CHARACTERISTICS
℃
Ω
Ω
( Ta=25 ,AVDD=7.0V, AVSS=-7.0V, DVDD=5.0V, f=1kHz, unless otherwise noted. Rg=1K , Rl=10K
,
VOLUME are set to 0dB/FLAT )
(1)Power Supply Characteristics
Limits
Parameter
Symbol
Aldd
Test condition
Unit
Min
typ
Max
Current at pin 5
No signal input
Analog positive circuit
current
Analog negative circuit
current
－
ꢀ
－
24
35
mA
mA
mA
Current at pin 29,30
No signal input
24
Alss
35
Current at pin 42
No signal input
－
1.0
2.0
Digital circuit current
Dldd
／
(2)Input Output Characteristics
Limits
typ Max
Parameter
Symbol
Ri
Test condition
Unit
Min
Ω
Input resistance
6,8,9,11,16,18pin
35
70
150
K
6,8,9,11,16,18pin INPUT
31~36pin OUTPUT, THD=1%
Maximum output
voltage
ꢀ
3.0
－
VOM
4.2
Vrms
Vi=0.2Vrms,FLAT
6,8,9,11,16,18pin INPUT
31~36pin OUTPUT
Pass gain
Gv
-2.0
0
2.0
dB
%
BW=400~30kHz
－
－
－
－
Distortion
THD
Vn(VOL)
S/N
0.004 0.09
Ω
Vi=0.2Vrms,RL=10K
Output noise
voltage
31~36pin
μ
4
6
Vrms
dB
JIS-A,VOL=OdB
Signal to noise ratio
98
105
all gains=0dB; Vo=1Vrms
31~36 pin
Maximum
ATTmax
Dvol
-100 -95
1.5
-100 -75
dB
∞
attenuation
JIS-A,VOL=- dB
Volume gain
-1.5
0
dB
between channels
Ω
,
Crosstalk between
channels
Vo=0.5Vrms,RL=10K
－
CT
dB
Ω
JIS-A, Rg=1K
Port output current
Ω
－
－
IL
RL=22K
0.2
mA
Page 11
MAY.2003
SAMHOP [ SAMHOP MICROELECTRONICS CORP. ]
