TDA7491P datasheet(15/42 Pages) STMICROELECTRONICS

部件名	TDA7491P

功能描述	2 x 10-watt dual BTL class-D audio amplifier

PDF	42 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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15 / 42 page

TDA7491P

Characterization curves

Doc ID 13540 Rev 6

15/42

Figure 7.

THD vs. frequency

Figure 8.

Frequency response

Figure 9.

Crosstalk vs. frequency

Frequency (Hz)

THD (%)

0.005

0.01

0.02

0.05

0.1

0.2

0.5

20k

100

200

500

10k

Test Condition:

Vcc=10V,

RL=4 ohm,

Rosc=39k

Ω, Cosc=100nF,

f = 1kHz,

Gv=30dB,

Po=1W

Tamb=25

℃

Specification Limit:

Typical: THD <0.5%

Ampl (dB)

Frequency (Hz)

-5

-4

-3

-2

-1

-0

30k

100

200

500

10k

Specification Limit:

Max: +/-3dB

@20Hz to 20kHz

Test Condition:

Vcc =10V,

RL= 4 ohm,

Rosc=39k

Ω, Cosc=100nF,

f = 1kHz,

Gv = 30dB,

Po =1W

Tamb = 25

℃

Test Conditions:

Vcc = 10V

Rl = 4 ohm

Rosc = 39k ohm

Cosc = 100nF

Po = 1W

Gv = 20 dB

Tamb. = 25

˚C

Specification limits:

Typical:

Crosstalk < -73 dB

Crosstalk (dB)

Frequency (Hz)

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