Datasheet > AK4204ET

AK4204ET

更新时间： 2022-10-09 14:10:11

品牌	Logo	应用领域
AKM		视频放大器
页数	文件大小	规格书
13页	303K
描述
Stereo Cap-less LINE-Amp and Video-Amp

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中文翻译

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数据手册

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AK4204ET 数据手册

[AK4204]

■ Video Circuit Power-Up Sequence

The video circuit of the AK4204 is powered-up when the VPDN pin becomes “H”.

(Note) The charge pump starts operation when the VPDN pin or APDN pin is “H”.

The figure below shows an example of when the APDN pin becoes “H” before the VPDN pin.

Power Supply

VDD1,VDD2

3.0V

APDN: “L” → “H” (Note)

VPDN

Charge Pump

VEE

Power down VEE=0V

Power down

Power up VEE = Negative voltage

Power up

time B

Video Circuit

Video Timer

Circuit

(1)

VIN

Video Input Signal

(2)

VSS2=0V

Video Output Signal

VOUT

Figure 7. System Reset Diagram

(1) When the VPDN pin goes to “H”, the video timer circuit starts counting “timeB” period (max. 100ms).

(2) After the “timeB” period, the video output becomes ebable exiting 0V state.

Rev. 0.1

2012/02

- 9 -

1...6 7 8910 11 12 13

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