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參數資料
| 型號： | LA7477W |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| 封裝： | 7 X 7 MM, SQFP-48 |
| 文件頁數： | 5/12頁 |
| 文件大?。?/td> | 129K |
| 代理商： | LA7477W |
LA7477W
No.5775-2/12
Specifications
Maximum Ratings at Ta = 25
°C
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
VCC
7V
Allowable power dissipation
Pd max
Ta
≤ 75°C
200
mV
Operating temperature
Topr
-10 to +75
°C
Storage temperature
Tstg
-55 to +150
°C
Operating Conditions at Ta = 25
°C
Parameter
Symbol
Conditions
Ratings
Unit
VCC1
3.15
V
Recommended supply voltage
VCC2
4.75
V
VCC1 opg
3.0 to 3.6
V
Operating supply voltage range
VCC2 opg
4.5 to 5.5
V
Electrical Characteristics at Ta
= 25°C, VCC1 = 3.15V, VCC2 = 4.75V, f = 1kHz, Lch, Rch, EVR ; CENTER
Ratings
Parameter
Symbol
Conditions
min
typ
max
Unit
Record current 1
ICC3R1
VCC (L) = 3.15V, REC
13.3
17.8
22.3
mA
Record current 2
ICC5R2
VCC (H) = 4.75V, REC
4.1
5.5
6.9
mA
Playback current 1
ICC3P1
VCC (L) = 3.15V, PB
6.9
9.3
11.7
mA
Playback current 2
ICC5P2
VCC (H) = 4.75V, PB
4.1
5.5
6.9
mA
Line output reference level
VOL
VIN (MIC) = -40dBV, VIN (LINE1, 2) = -30dBV
-11
-10
-9
dBV
Line output left/right level
difference (THD)
VOLD
VIN (MIC) = -40dBV, VIN (LINE1, 2) = -30dBV
0
±1dB
Line output total harmonic
distortion
VOLTHD
VIN (MIC) = -40dBV, VIN (LINE1, 2) = -30dBV
0.1
0.3
%
Line output noise voltage 1
VNOL1
MIC IN MODE, ALC-ON, Rg = 1k,
JIS-A FILTER
-73
-70
dBV
Line output noise voltage 2
VNOL2
MIC IN MODE, ALC-OFF, Rg = 1k,
JIS-A FILTER
-79
-76
dBV
Line output noise voltage 3
VNOL3
LINE1, 2 IN MODE, ALC-ON, Rg = 1k,
JIS-A FILTER
-83
-80
dBV
Line output noise voltage 4
VNOL4
LINE1, 2 IN MODE, ALC-OFF, Rg = 1k,
JIS-A FILTER
-87
-84
dBV
Line output ALC level
VOLa
VIN (MIC) = -30dBV, VIN (LINE1, 2) = -20dBV
-4.5
-3.0
-1.5
dBV
Line output ALC (20dB boost)
harmonic distortion (THD)
VOLaT
VIN (MIC) = -20dBV
0.2
0.5
%
Record output reference level
VOR
VIN (MIC) = -40dBV, VIN (LINE1, 2) = -30dBV
-18
-17
-16
dBV
Record output left/right level
difference
VORD1
VIN (MIC) = -40dBV, VIN (LINE1, 2) = -30dBV
0
±1dB
Record output total harmonic
distortion (THD)
VORTHD
VIN (MIC) = -40dBV, VIN (LINE1, 2) = -30dBV
0.1
0.3
%
Record output noise voltage 1
VNOR1
MIC IN MODE, ALC-ON, Rg = 1k,
JIS-A FILTER
-81
-78
dBV
Record output noise voltage 2
VNOR2
MIC IN MODE, ALC-OFF, Rg = 1k,
JIS-A FILTER
-86
-83
dBV
Record output noise voltage 3
VNOR3
LINE1, 2 IN MODE, ALC-ON, Rg = 1k,
JIS-A FILTER
-91
-88
dBV
Record output noise voltage 4
VNOR4
LINE1, 2 IN MODE, ALC-OFF, Rg = 1k,
JIS-A FILTER
-96
-93
dBV
Record output ALC level
VORa
VIN (MIC) = -30dBV, VIN (LINE1, 2) = -20dBV
-11.5
-10.0
-8.5
dBV
Record output maximum output
level
VORMAX
ALC-OFF, VIN (MIC, LINE1, 2)
at REC OUT THD = 1%
-4
dBV
Record forward/reverse output
level difference
VORD2
VIN (MIC) = -40dBV, VIN (LINE1, 2) = -30dB
0
±0.2
dB
Record forward/reverse output
DC offset
VOROFF
No signal
0
±7mV
Continued on next page.
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