LR38575

4

PIN NO. SYMBOL IO SYMBOL POLARITY

PIN NAME

DESCRIPTION

20

–

Power supply

Supply of +3.3 V power.

An input pin for resetting all internal circuits at power-on.

capacitor.

All clear input

ICU3

ACLX

21

–

A grounding pin.

Ground

–

GND

23

22

RS

O6MA3

S/H pulse output

A pulse to sample-hold the signal for the CDS circuit.

The output polarity of RS is selected by serial data.

24

VCON

ICU3

VD control input

An input pin to control internal vertical clock for long

shutter speed.

H level or open

: VD

L level

: VD is masked by the pulse which

is latched at the rising edge of VD.

It's necessary to be set SMD = high and number of the

fields data n ≥ 2 in serial data control at VCON operation.

–

–

A pulse to sample-hold the signal for the CCD.

The output phase and output polarity of FS are selected

by serial data.

CDS pulse output 2

O6MA3

FS

19

–

–

An input pin for reference clock oscillation.

The frequency is 24.54545 MHz.

Clock input

OSCI3

CKI

25

26

CKO

OSCO3

Clock output

An output pin for reference clock oscillation.

The output is the inverse of CKI (pin 25).

–

An output pin to generate HD and VD pulses.

The frequency is 12.272725 MHz.

Clock output

O6MA3

CLK

27

18

FCDS

O6MA3

CDS pulse output 1

A pulse to clamp the feed-through level for the CCD.

The output phase and output polarity of FCDS are

selected by serial data.

A pulse to clamp the optical black signal.

This pulse is controlled by serial data BCPCNT;

BCPCNT = H; This pulse stays high during the

absence of effective pixels within the

vertical blanking or during the

sweepout signal.

BCPCNT = L; This pulse stays high during the

sweepout signal.

Optical black clamp

pulse output

BCPX

14

O3

O3

15

CLPX

Clamp pulse output

A pulse to clamp the dummy outputs of the CCD signal.

This pulse stays high during the sweepout period.

AD clock output

ADCK

16

O6MA3

An output pin for AD converter. The output phase of

ADCK is selected by serial data in 90˚ steps.

–

17

GND

Ground

A grounding pin.

–