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參數(shù)資料
| 型號： | NCP2821 |
| 廠商： | ON SEMICONDUCTOR |
| 英文描述： | 2.65 W Filterless with Selectable Gain Class(2.65W, 可選增益D類音頻放大器) |
| 中文描述： | 2.65糯濾波與可選增益級（2.65W，可選增益?類音頻放大器） |
| 文件頁數(shù)： | 4/19頁 |
| 文件大?。?/td> | 247K |
| 代理商： | NCP2821 |
NCP2821
http://onsemi.com
4
ELECTRICAL CHARACTERISTICS
(Limits apply for T
A
= +25
°
C unless otherwise noted)
Characteristic
Symbol
Conditions
T
A
= 40
°
C to +85
°
C
V
P
= 3.6 V, R
L
= 8.0
V
P
= 5.5 V, No Load
V
P
from 2.5 V to 5.5 V, No Load
T
A
= 40
°
C to +85
°
C
Vp = 4.2 V, T
A
= +25
°
C
Vp = 5.5 V, T
A
= +25
°
C
Vp = 2.5 V to 5.5 V
T
A
= 40
°
C to +85
°
C
Min
Typ
Max
Unit
Operating Supply Voltage
Supply Quiescent Current
V
P
I
dd
2.5
5.5
4.5
V
2.5
3.1
mA
Shutdown Current
I
sd
0.5
0.8
150
75
A
A
1.4
0.4
0.4
SD Voltage High
SD Voltage Low
GS Voltage High
GS Voltage Low
Differential Input Resistance
V
sdih
V
sdil
V
gsih
V
gsil
R
in
1.2
1.2
V
V
V
V
k
k
kHz
G = 6 dB
G = 12 dB
Vp = 2.5 V to 5.5 V
T
A
= 40
°
C to +85
°
C
R
L
= 8.0 , V
GS
= High
R
L
= 8.0 , V
GS
= Low
Switching Frequency
F
SW
200
5.5
11.5
200
25
250
6
12
300
2.5
9
5
160
300
6.5
12.5
+25
Gain
G
dB
dB
k
mV
ms
ms
°
C
Vrms
Resistance from SD to Gnd
Output Offset Voltage
Turn On Time
Turn Off Time
Thermal Shutdown Temperature
Output Noise Voltage
R
SD
V
os
T
ON
T
OFF
Tsd
Vn
T
A
= 40
°
C to +85
°
C
Vp = 2.5 V to 5.5 V
Vp = 2.5 V to 5.5 V
Vp = 3.6 V
F = 20Hz to 20kHz
No weighting filter
A weighting filter
63
40
RMS Output Power
Po
R
L
= 8 , f = 1 kHz, THD+N < 1%
Vp = 2.5 V
Vp = 3.0 V
Vp = 3.6 V
Vp = 4.2 V
Vp = 5.0 V
R
L
= 8 , f = 1 kHz, THD+N < 10%
Vp = 2.5 V
Vp = 3.0 V
Vp = 3.6 V
Vp = 4.2 V
Vp = 5.0 V
R
L
= 4 , f = 1 kHz, THD+N < 1%
Vp = 2.5 V
Vp = 3.0 V
Vp = 3.6 V
Vp = 4.2 V
Vp = 5.0 V
R
L
= 4 , f = 1 kHz, THD+N < 10%
Vp = 2.5 V
Vp = 3.0 V
Vp = 3.6 V
Vp = 4.2 V
Vp = 5.0 V
0.32
0.48
0.7
0.97
1.38
W
0.4
0.59
0.87
1.19
1.7
W
RMS Output Power
Po
0.49
0.72
1.06
1.62
2.12
W
0.6
0.9
1.33
2.0
2.65
W
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