TDA7491MV STMicroelectronics, TDA7491MV Datasheet - Page 13

• Manufacturer Part Number: TDA7491MV
• Description: Audio Amplifiers 25W Mono BTL Class-D 4-Select dB
• Manufacturer: STMicroelectronics

Specifications of TDA7491MV

• Amplifier Class: D
• No. Of Channels: 1
• Output Power: 20W
• Supply Voltage Range: 5V To 18V
• Thd + N: 0.1% @ 1W, 8ohm, VCC=18V
• Load Impedance: 8ohm
• Operating Temperature Range: 0°C To +70°C
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TDA7491MV
Figure 8.
Figure 9.
Figure 10. Closed-loop gain vs frequency
Test Condition :
Vcc = 18V,
RL = 8 ohm,
Rosc =39kO, Cosc =100nF,
0dB@f=1kHz, Po=1w,
Gv=32dB,
Tamb =25℃
FFT (0 dB)
FFT (-60 dB)
Specification Limit:
Typical: > 90dB
for the harmonic frequency
Test Condition:
Vcc =18V,
RL= 8 ohm,
Rosc =39kΩ, Cosc =100nF,
f =1kHz,
Gv =30dB,
Tamb =25℃
Test Condition:
Vcc =18V,
RL= 8 ohm,
Rosc =39kΩ, Cosc =100nF,
f = 1kHz,
Gv =30dB,
Tamb =25℃
Specification Limit:
Typical: >60dB
for the harmonic frequency
Po =1W
Po = -60dB (@ 1W =0dB)
d
B
A
r
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Doc ID 14576 Rev 2
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Gain=32dB
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-150
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Gain=30dB
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Gain=26dB
20
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FFT (dB)
FFT (dB)
100
50
50
Gain=22dB
100
100
200
Vcc=18V,
Rload=8ohm,
0dB@f=1kHz, Po=1w,
Gv=32dB
TDA7491 MV 8ohm Closed -loop gain vs Freq . at27
200
200
500
Frequency (Hz)
Frequency (Hz)
500
500
Hz
1k
1k
1k
2k
2k
2k
Characterization curves
5k
5k
5k
10k
10k
10k
20k
20k
20k
30k
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