TDA7491P Просмотр технического описания (PDF) - STMicroelectronics

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TDA7491P

2 x 10-watt dual BTL class-D audio amplifier

STMicroelectronics 

Characterization curves

Figure 16. Attenuation vs. voltage on pin STBY

TDA7491P

Test Condition:

Vcc =10V,

RL= 4 ohm,

Rosc = 39kΩ, Cosc = 100nF,

0dB@f=1kHz,Po=1w,

Gv=30dB,

Tamb=25℃

0

-20

Vcc=10V

-40

Rload=4ohm

Gain=30dB

-60

0dB@f=1kHz, Po=1w

-80

-100

-120

0

0.5

1

1.5

2

2.5

Standby voltage (V)

3

3.5

4.2

With 6-Ω load at VCC = 11 V

Figure 17. Output power vs. supply voltage

Test Condition :

Vcc = 5~11V,

RL = 6 ohm,

Rosc = 39kO, Cosc = 100nF,

f =1kHz,

Gv = 30dB,

Tamb = 25℃

Specification Limit:

Typical:

Vs =11V,Rl =6 ohm

Po =10W @THD=10%

Po =8W @THD=1%

12

11

10

9

THD =10%

8

7

6

Rl =6 ohm

5

f =1kHz

4

THD =1%

3

2

1

0

5

6

7

8

9

10

11

Supply Voltage (V)

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Doc ID 13540 Rev 6

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