TDA7492 データシートの表示（PDF） - STMicroelectronics
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TDA7492 Datasheet PDF : 32 Pages
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Electrical specifications
TDA7492
Table 5. Electrical specifications (continued)
Symbol
Parameter
Condition
Min Typ Max Unit
VUVP
RdsON
Po
Po
PD
THD
GV
Undervoltage protection
threshold
Power transistor on resistance
Output power
Output power
Dissipated power
Efficiency
Total harmonic distortion
Closed-loop gain
-
High side
Low side
THD = 10%
THD = 1%
RL = 6 , THD = 10%,
VCC = 25V
RL = 6 , THD = 1%
VCC = 25V
Po =40W +40 W,
THD = 10%
Po = 40 W + 40W
Po = 1 W
GAIN0 = L, GAIN1 = L
GAIN0 = L, GAIN1 = H
GAIN0 = H, GAIN1 = L
-
-
7
V
-
0.2 -
-
0.2 -
-
40 -
W
-
32 -
-
50 -
W
-
40 -
-
8.0 -
W
80 90 -
%
-
0.1 0.4 %
20.6 21.6 22.6
26.6 27.6 28.6
dB
30.1 31.1 32.1
GAIN0 = H, GAIN1 = H 32.6 33.6 34.6
GV
Gain matching
CT
Cross talk
-
f = 1 kHz
-
-
±1 dB
-
50 -
dB
eN
Total input noise
A Curve, GV = 20 dB
-
20 -
μV
f = 22 Hz to 22 kHz
-
25 35
SVRR
Tr, Tf
fSW
fSWR
Supply voltage rejection ratio
Rise and fall times
Switching frequency
Output switching frequency
Range
fr = 100 Hz, Vr = 0.5 V,
CSVR = 10 μF
40
50
-
dB
-
-
50 -
ns
Internal oscillator
290 310 330 kHz
With internal oscillator (1) 250 -
With external oscillator (2) 250 -
400
kHz
400
VinH
Digital input high (H)
-
VinL
Digital input low (L)
2.3 -
-
-
-
V
0.8
AMUTE Mute attenuation
VMUTE = 1 V
60 80 -
dB
1. fSW = 106 / ((16 * ROSC + 182) * 4) kHz, fSYNCLK = 2 * fSW with R3 = 39 k (see Figure 28.).
2. fSW = fSYNCLK / 2 with the frequency of the external oscillator.
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DocID014926 Rev 6
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