CXD2457R View Datasheet(PDF) - Sony Semiconductor

Part Name

Description

Manufacturer

CXD2457R

Timing Generator for Progressive Scan CCD Image Sensor

Sony Semiconductor 

AC Characteristics

1) AC characteristics between the serial interface clocks

CXD2457R

SSI

SSK

SEN

SEN

0.2VDDa

0.8VDDa

0.8VDDa

ts1

th1

0.2VDDa

ts3

0.8VDDa

ts2

th2

0.2VDDa

(Within the recommended operating conditions)

Symbol

Definition

ts1 SSI setup time, activated by the rising edge of SSK

th1 SSI hold time, activated by the rising edge of SSK

ts2 SSK setup time, activated by the rising edge of SEN

th2 SSK hold time, activated by the rising edge of SEN

ts3 SEN setup time, activated by the rising edge of SSK

fk

SSK frequency

Min. Typ. Max. Unit

20

ns

20

ns

20

ns

20

ns

20

ns

7.5 MHZ

2) Serial interface clock internal loading characteristics

V2A

HRI

0.5VDDa

0.5VDDa

300ns

300ns

Do not rise the SEN level in this time

(300ns after the fall of HRI just before XSGA pulse generation

to 300ns after the fall of HRI just after XSGA pulse generation)

–9–

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