TDA7491LP View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

TDA7491LP

2 x 5-watt dual BTL class-D audio amplifier

STMicroelectronics 

Characterization curves

TDA7491LP

Figure 22. FFT (0 dB)

Test Condition:

Vcc =9V,

RL= 8 ohm,

Rosc =39kΩ, Cosc =100nF,

f = 1kHz,

Gv =30dB,

Po =1W

Tamb =25°C

Specification Limit:

Typical: >60dB

for the harmonic

frequency

FFT (dB)

+10

+0

-10

-20

-30

-40

-50

-60

-70

-80

-90

-100

-110

-120

-130

-140

-150

20

50

FFT (0 dB)

100

200

500

1k

2k

Frequency (Hz)

5k

10k 20k

Figure 23. FFT (-60 dB)

Test Condition:

Vcc =9V,

RL= 8 ohm,

Rosc =39kΩ, Cosc =100nF,

f =1kHz,

Gv =30dB,

Po = -60dB (@ 1W =0dB)

Tamb =25°C

Specification Limit:

Typical: > 90dB

for the harmonic

frequency

FFT (dB)

+0

-10

-20

-30

-40

-50

-60

-70

-80

-90

-100

-110

-120

-130

-140

-150

20

50

FFT (-60 dB)

100

200

500

1k

2k

Frequency (Hz)

5k

10k 20k

22/37

Doc ID 13541 Rev 5

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