CXD1175AP 데이터 시트보기 (PDF) - Sony Semiconductor

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CXD1175AP

8-bit 20MSPS Video A/D Converter (CMOS)

Sony Semiconductor 

CXD1175AM/AP

Latch Up Prevention

The CXD1175A is a CMOS IC which requires latch up precautions. Latch up is mainly generated by the lag in

the voltage rising time of AVDD (Pins 14, 15 and 18) and DVDD (Pins 11 and 13), when power supply is ON.

1. Correct usage

a. When analog and digital supplies are from different sources

AVDD

DVDD

14 15 18

11 13

AVDD

DVDD

+5V

+5V

C6

C14

CXD1175A

DIGITAL IC

AVSS

AVSS

20 21

DVSS

2 24

DVSS

b. When analog and digital supplies are from a common source

(i)

DVDD

14 15 18

11 13

AVDD

DVDD

+5V

C6

C14

CXD1175A

AVSS

AVSS

20 21

DVSS

2 24

DVSS

DIGITAL IC

(ii)

DVDD

+5V

C6

AVSS

14 15 18

11 13

AVDD

DVDD

C14

CXD1175A

AVSS

20 21

DVSS

2 24

DVSS

DIGITAL IC

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