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TDA7491MV 数据表(PDF) 9 Page - STMicroelectronics

部件名 TDA7491MV
功能描述  25 W mono BTL class-D audio amplifier
Download  28 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

TDA7491MV 数据表(HTML) 9 Page - STMicroelectronics

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TDA7491MV
Electrical specifications
Doc ID 14576 Rev 2
9/28
VUVP
Undervoltage protection
threshold
-
--4
V
RdsON
Power transistor on resistance
High side
-
0.2
-
Low side
-
0.2
-
Po
Output power
THD = 10%
-
20
-
W
THD = 1%
-
16
-
Po
Output power
RL = 8 Ω, THD = 10%
VCC =12 V
-9.5
-
W
RL = 8 Ω, THD = 1%
VCC =12 V
-7.2
-
Po
Output power
RL = 6 Ω, THD = 10%
VCC =16 V
-20
-
W
RL = 6 Ω, THD = 1%
VCC =16 V
-16
-
PD
Dissipated power
Po = 20 W THD = 10%
-
2.0
-
W
η
Efficiency
Po = 20 W
80
90
-
%
THD
Total harmonic distortion
Po = 1 W
-
0.1
0.2
%
GV
Closed loop gain
GAIN0 = L, GAIN1 = L
18
20
22
dB
GAIN0 = L, GAIN1 = H
24
26
28
GAIN0 = H, GAIN1 = L
28
30
32
GAIN0 = H, GAIN1 = H
30
32
34
∆GV
Gain matching
-
-1
-
1
dB
eN
Total input noise
A Curve, GV = 20 dB
-
20
-
µV
f = 22 Hz to 22 kHz
-
25
35
SVRR
Supply voltage rejection ratio
fr = 100 Hz, Vr = 0.5 V,
CSVR = 10 µF
40
50
-
dB
Tr, Tf
Rise and fall times
-
-
50
-
ns
fSW
Switching frequency
Internal oscillator
290
310
330
kHz
fSWR
Output switching frequency
With internal oscillator (1)
250
-
-
kHz
With external oscillator (2) 250
-
-
VinH
Digital input high (H)
-
2.3
-
-
V
VinL
Digital input low (L)
-
-
0.8
AMUTE
Mute attenuation
VMUTE = 1 V
60
80
-
dB
Table 5.
Electrical specifications (continued)
Symbol
Parameter
Condition
Min
Typ
Max
Unit


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