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

4. Shutter speed setting specifications when PS = H

When PS = H, the CXD2457R can be controlled without inputting serial data by using the SEN, SSK and SSI

pins.

Pin

When L

FHIGH

SEN (horizontal CCD

drive frequency)

Serial registers FHIGH and 3MCK = 0.

SSK

FINE

Serial register FINE = 0 and the

(readout method) CXD2457R operates in DRAFT mode.

When H

Serial registers FHIGH = 1 and

3MCK = 0.

Serial register FINE = 1 and the

CXD2457R operates in FINE mode.

Number of SUB pulses when PS = H

HSHUT,

SSI VSHUT

(exposure time)

L

SEN

H

SSK

L

H

249

777

199

727

217

745

68

596

Upper number: When SSI = H (1/250)

Lower number: When SSI = L (1/60)

Other registers hold the value input when PS = L, and assume the status indicated by STB when the RST

pulse is input.

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