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參數(shù)資料
| 型號： | SM6451BV |
| 廠商： | Seiko NPC Corporation |
| 英文描述： | Audio Variable Volume IC |
| 中文描述： | 音頻集成電路體積變 |
| 文件頁數(shù)： | 5/12頁 |
| 文件大小： | 155K |
| 代理商： | SM6451BV |
SM6451BV
NIPPON PRECISION CIRCUITS—5
AC Analog Characteristics
V
AC-coupled inputs
DD
= 3.0 V, 0.8 Vrms amplitude, 1 kHz input frequency, 100 k
output load resistance, Ta = 25
°
C,
Analog inputs (LIN, RIN)
Analog outputs (LOUT, ROUT)
Reference voltage (VRL, VRR)
Parameter
Symbol
Condition
Rating
Unit
min
typ
max
Reference input amplitude
V
AI
–
0.8
–
Vrms
Input resistance
R
IN
40
50
60
k
Input clipping voltage
V
CLP
THD + N = 1%, ATT = 0 dB
–
1.1
–
Vrms
Parameter
Symbol
Condition
Rating
Unit
min
typ
max
Residual noise voltage
V
NS
Input signal: 0 Vrms,
A-weight filter, 0 dBr = 0.8
Vrms, ATT = 0 dB
–
12
20
μ
Vrms
Signal-to-noise ratio
SNR
92
96
–
dBr
Total harmonic distortion + noise
THD + N
ATT = 0 dB, 20 kHz
lowpass filter
–
0.0025
0.005
%
Gain control range
R
CNT
– 80
–
0
dB
Step size
Step
0.8
1.0
1.8
dB
Attenuation error (1k to 20kHz)
ERR
1
0 to
60 dB
– 2
–
1
dB
ERR
2
61 to
80 dB
– 6
–
0
dB
Absolute attenuation (1 kHz)
AT
0
ATT = 0 dB
–
– 0.0
–
dB
AT
2
ATT =
20 dB
–
– 20.0
–
dB
AT
4
ATT =
40 dB
–
– 40.0
–
dB
AT
6
ATT =
60 dB
–
– 60.4
–
dB
AT
8
ATT =
80 dB
–
– 84.2
–
dB
Mute attenuation (1 kHz)
Mute
ATT = Mute
– 85.0
– 88.0
–
dB
Channel crosstalk
CT
ATT = 0 dB
– 103
– 105
–
dB
Frequency response
FR
ATT = 0 dB, f = 200 kHz
– 10
– 8
–
dB
Quiescent output zip noise voltage
(while ATT value adjusting)
N
J
0 Vrms input
–
–
3
mV
Minimum driver load resistance
R
ML
ATT = 0 dB, THD + N = 1%
–
8
12
k
Parameter
Symbol
Condition
Rating
Unit
min
typ
max
Reference voltage output
V
REF
0.45V
DD
0.5V
DD
0.55V
DD
V
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