CXD2308Q Ver la hoja de datos (PDF) - Sony Semiconductor

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CXD2308Q

10-bit 50MSPS RGB 3-channel D/A Converter

Sony Semiconductor 

CXD2308Q

Latch Up Prevention

The CXD2308Q is a CMOS IC which requires latch up precautions. Latch up is mainly generated by the lag in

the voltage rising time of AVDD and DVDD, when power supply is ON.

1. Correct usage

a. When analog and digital supplies are from different sources

AVDD

DVDD

AVDD

DVDD

+5V

+5V

C

C

CXD2308Q

AVSS

AVSS

DVSS

DVSS

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

(i)

DVDD

DIGITAL IC

AVDD

DVDD

+5V

C

C

CXD2308Q

AVSS

AVSS

DVSS

DVSS

(ii)

DVDD

DIGITAL IC

+5V

C

AVSS

AVDD

CXD2308Q

DVDD

C

AVSS

DVSS

DVSS

—11—

DIGITAL IC

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