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參數資料
| 型號： | LA4581MB |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 0.032 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO24 |
| 封裝： | MFP-24 |
| 文件頁數： | 3/10頁 |
| 文件大小： | 241K |
| 代理商： | LA4581MB |
Operating Characteristics at Ta=25 °C, VCC =3.0 V,f=1 kHz, 0.775 V = 0 dBm,
RL =10k (preamplifier), RL =16 (power amplifier)
Parameter
Symbol
Output
min
typ
max
Unit
[Pre + Power]
Quiescent current
ICCO
Rg = 2.2 k
(preamplifer) VIN = 0 V
17
27
mA
Voltage gain (Closed)
VGT
VO = –5 dBm
65
68
71
dB
[Preamplifier]
Voltage gain (Open)
VGo
VO = –5 dBm
70
80
dB
Voltage gain (Closed)
VG1
VO = –5 dBm
40
dB
Maximum output voltage
VOmax
THD=1%,VCC = 1.8 V
0.1
0.2
V
Total harmonic distortion
THD1
VO = 0.2 V, VG = 40 dB/NAB
0.05
0.5
%
Equivalent input noise voltage
VN1
Rg = 2.2 k
, B.P.F = 20 to 20 kHz
1.3
2.0
V
Crosstalk
CT1
Rg = 2.2 k
, TUNE 1 kHz
60
80
dB
Ripple rejection ratio
Rr1
Rg = 2.2 k
,VCC = 1.8 V, Vr = –20 dBm,
f = 100 Hz
40
50
dB
[Power Amplifer]
Output voltage
PO
THD = 10%
23
32
mW
Voltage gain (Closed)
VG2
VO = –5 dBm
25
28
31
dB
Total harmonic distortion
THD2
PO = 1 mW
0.4
1.0
%
Interchannel crosstalk
CTT
VO = –5 dBm, Rv =0
30
40
dB
Output noise voltage
VNO
Rg = 0, B.P.F = 20 to 20 kHz
24
40
V
Ripple rejection ratio
Rr2
Rg=0,Vr = –20 dB, f = 100 Hz, VCC = 1.8 V
45
60
dB
Input resistance
RIN
22
30
38
k
DC offset voltage
VODCoff
Between 13-14 and 15
–90
+90
mV
Note) Power amplifier voltage gain VG2 increases by about 1 dB for min/max respectively than specified above when RL =32 .
LA4581MB
No.3535-2/10
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