CXD2457R データシートの表示（PDF） - Sony Semiconductor

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CXD2457R

Timing Generator for Progressive Scan CCD Image Sensor

Sony Semiconductor 

CXD2457R

Description of Operation

1. Progressive Scan CCD drive pulse generation

• Combining this IC with a crystal oscillator generates a fundamental frequency of 30.0MHz.

• CCD drive pulse generation is synchronized with HRI and FRI.

• The CCD drive method can be changed to various modes by inputting serial data or parallel data to the

CXD2457R.

• The various drive methods possessed by the CXD2457R are shown in the Timing Charts A-1 to 4 (V rate)

and B-1 to 6 (H rate).

2. Serial data input method

• All CXD2457R operations can be controlled via the serial interface. The serial data format is as follows.

SSI

SSK

00 01 02 03 04 05 06 33 34 35 36 37 38 39

SEN

Serial data format

Data

D00

to

D07

D08

to

D10

Symbol

CHIP

CTGRY

D11

to DATA

D31

D32

to Checksum bits

D39

Serial data

Function

Chip switching

When reset

See D00 to D07

CHIP.

All 0

Category switching

See D08 to D10

CTGRY.

All 0

Control data for each category

The meaning of this CTGRY control data

See D11 to D31

differs according to the category set by D08 to DATA.

All 0

D10.

Checksum bits

See D32 to D39

CHKSUM.

All 0

– 12 –

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