AN7198Z 데이터 시트보기 (PDF) - Panasonic Corporation

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AN7198Z

Dual 20 W BTL Power IC for Car Audio

Panasonic Corporation 

AN7198Z

ICs for Audio Common Use

s Technical Information (continued)

4. Countermeasure for shock noise of the AN7198Z (continued)

3) Muting on/off (Pin7 low: Muting state, high: Operating state) (continued)

(2) Attack and recovery time of muting on/off is determined by the external CR time constant of pin 7.

(3) There is afraid of shock noise when time constant is set to 10 ms or less.

(Since output DC voltage is changed approx. 50 mV by muting on/off.)

Output AC

Less than ± 50 mV

Approx. Output DC

6.3 V

Figure 13

5V

Mute pin voltage

0V

s Application Circuit Example

2200 µF

ch.1 GND 3

ch.1 Out (−) 4

ch.1 Out (+) 2

Ref.

Att

Protection Cct.

Att

Att.Con.

Att

Att

33 µF

14 ch.2 GND

13 ch.2 Out (−)

15 ch.2 Out (+)

Standby 5 V

0V

20

20 kΩ

5 V Mute

0V

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