TDA7492 datasheet(20/32 Pages) STMICROELECTRONICS

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Characterization curves

TDA7492

20/32

DocID014926 Rev 6

Figure 24. Crosstalk

Figure 25. FFT performance (0 dB)

Figure 26. FFT performance (-60 dB)

Test conditions:

Vcc = 20 V,

RL = 4

Ω,

Rosc = 39 k

Ω, Cosc = 100 nF,

f = 1 kHz,

Gv = 20 dB,

0 dB at f = 1 kHz,

Po = 1 W,

Tamb = 25 C

Specification limit:

Typical: > 50 dB (at f = 1 kHz)

-120

-60

-115

-110

-105

-100

-95

-90

-85

-80

-75

-70

-65

Crosstalk

20k

100

200

500

10k

Frequency (Hz)

Test conditions:

Vcc = 20 V,

RL = 4

Ω,

Rosc = 39 k

Ω, Cosc = 100 nF,

f = 1 kHz,

Gv = 20 dB,

0 dB at f = 1 kHz,

Po = 1 W,

Tamb = 25 C

Specification limit:

Typical: > 60 dB

for the harmonic frequency

-150

+10

-140

-130

-120

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

dBrA

20k

100

200

500

10k

Frequency (Hz)

Test conditions:

Vcc = 20 V,

RL = 4

Ω,

Rosc = 39 k

Ω, Cosc = 100 nF,

f = 1 kHz,

Gv = 20 dB,

0 dB at f = 1 kHz,

Po = 1 W,

Tamb = 25 C

Specification limit:

Typical: > 90 dB

for the harmonic frequency

-150

+10

-140

-130

-120

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

dBrA

20k

100

200

500

10k

Frequency (Hz)

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