TDA7492 datasheet(19/32 Pages) STMICROELECTRONICS

tên linh kiện	TDA7492

Giải thích chi tiết về linh kiện	50 W 50 W dual BTL class-D amplifier

PDF	32 Pages

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19 / 32 page

DocID014926 Rev 6

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TDA7492

Characterization curves

Figure 21. THD vs. output (100 Hz)

Figure 22. THD vs. frequency

Figure 23. Frequency response

0.01

0.02

0.05

0.1

0.2

0.5

THD + N

100m

200m

500m

Test conditions:

Vcc = 20 V,

RL = 4

Ω,

Rosc = 39 k

Ω, Cosc = 100 nF,

f = 100 Hz,

Gv = 20 dB,

Tamb = 25 C

Specification limit:

Typical:

Po = 38 W at THD = 1%

Output power (W)

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: THD < 0.4%

0.01

0.5

0.02

0.03

0.04

0.05

0.06

0.07

0.1

0.2

0.3

0.4

THD + N

20k

100

200

500

10k

Frequency (Hz)

-3

-2.75

-2.5

-2.25

-2

-1.75

-1.5

-1.25

-1

-0.75

-0.5

-0.25

-0

+0.25

+0.5

+0.75

dBrA

20k

100

200

500

10k

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:

Max: +/-3 dB (20 Hz to 20 kHz)

Frequency (Hz)

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