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TDA7492P 数据表(PDF) 9 Page - STMicroelectronics

部件名 TDA7492P
功能描述  25-watt 25-watt dual BTL class-D audio amplifier
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

TDA7492P 数据表(HTML) 9 Page - STMicroelectronics

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TDA7492P
Electrical specifications
Doc ID 15068 Rev 5
9/26
VOVP
Overvoltage protection threshold -
28
29
-
V
VUVP
Undervoltage protection
threshold
-
--7
V
RdsON
Power transistor on resistance
High side
-
0.2
-
Ω
Low side
-
0.2
-
Po
Output power
THD = 10%
-
25
-
W
THD = 1%
-
20
-
Po
Output power
VCC = 12 V, THD = 10%
-
9.5
-
W
VCC = 12 V, THD = 1%
-
7.2
-
PD
Power dissipated by device
Po = 25 W + 25 W,
THD = 10%
-5.0
-W
η
Efficiency
Po = 10 W + 10 W
80
90
-
%
THD
Total harmonic distortion
Po = 1 W
-
0.1
0.4
%
GV
Closed-loop gain
GAIN0 = L, GAIN1 = L
20.6
21.6
22.6
dB
GAIN0 = L, GAIN1 = H
26.6
27.6
28.6
GAIN0 = H, GAIN1 = L
30.1
31.1
32.1
GAIN0 = H, GAIN1 = H
32.6
33.6
34.6
ΔGV
Gain matching
-
-
-
±1
dB
CT
Cross talk
f = 1 kHz
-
50
-
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
range
With internal oscillator (1)
250
-
400
kHz
With external oscillator (2) 250
-
400
VinH
Digital input high (H)
-
2.3
-
-
V
VinL
Digital input low (L)
-
-
0.8
AMUTE
Mute attenuation
VMUTE = 1 V
60
80
-
dB
1.
fSW = 10
6 / ((16 * R
OSC + 182) * 4) kHz, fSYNCLK = 2 * fSW with R3 = 39 kΩ, see Figure 20.
2.
fSW = fSYNCLK / 2 with the frequency of the external oscillator.
Table 5.
Electrical specifications (continued)
Symbol
Parameter
Condition
Min
Typ
Max
Unit


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