TDA7437N_03 查看數據表（PDF） - STMicroelectronics

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TDA7437N_03

DIGITALLY CONTROLLED AUDIO PROCESSOR

STMicroelectronics 

Figure 4. Power on Time Constant vs CREF

Capacitor CREF = 4.7µF

V

(1V/div)

D95AU380

2

OUT LF

1

CREF

BWL

0.5s/DIV TIME

Figure 5. Power on Time Constant vs CREF

Capacitor CREF = 10µF

V

(1V/div)

D95AU381

TDA7437N

Figure 7. SVRR vs. Frequency

SVRR

(dB)

-40

D95AU383

-50

22µF

-60

47µF

-70

4.7µF

-80

VS=8V

Ripple=0.2VRMS

-90

AV=-15dB

-100

10

100

1K

10K Freq(Hz)

Figure 8. Soft Mute ON

SOFT MUTE=ON SLOPE=FAST Vout=500mVrms

V

D95AU384

Main Menu

Pin Csm

2

OUT LF

1

CREF

BWL

0.5s/DIV TIME

Figure 6. Power on Time Constant vs CREF

Capacitor CREF = 22µF

V

(1V)

D95AU382

V

Vout

SOFT MUTE

CH1 9V DC

Chan 2

1ms 0.2V

Chan 3

1ms 2V

CH1 0.5V1x0 ~

TIME

CH2 20mV1x0 ~

CH3 0.2V1x0 =

CH4 20mV1x0 = T/div 1ms

OUT LF

CREF

BWL

2

1

1s/DIV TIME

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