IR3Y38 データシートの表示（PDF） - Sharp Electronics

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IR3Y38

CCD Signal Process & Digital Interface IC

Sharp Electronics 

IR3Y38M

PRECAUTIONS

Each VCC1 to VCC6 pin corresponds to the each

GND1 to GND6 pin. Connect a ceramic capacitor

as near the IC as possible between each

corresponding VCC pin and GND pin.

The GND1 pin is the ground of the CDS/ADC

circuit handling a weak signal. Pay careful attention

to the board layout of the GND1 pattern in order to

avoid the potential fluctuation of the GND1 caused

by the current of the other GND pins. Especially

pay attention to the current of the GND6 pin's

flowing spiky current.

converter is controllable by the voltage of the

VLOGIC pin, but take care that the high level voltage

does not fall below about 1.5 V, in spite of making

the VLOGIC pin 0 V. This may cause the latch up of

the following logic ICs if the power supply of this IC

rises up faster than the power supply of the

following logic. To avoid this problem, it is

recommended to make the ‰ pin low until the

voltage of the logic power supply becomes stable.

Take care too that the high level voltage does not

rise above about VCC – 1.0 V, in spite of making

the VLOGIC pin the VCC potential.

All the GND pins must be at the same potential

and not open. And keep the potential difference of

each VCC pin within 0.3 V.

The high level voltage of the outputs of the A/D

Restore the value of the serial register when setting

up the power supply or making the ‰ pin high

because the value will have been removed in that

case.

ABSOLUTE MAXIMUM RATINGS

PARAMETER

SYMBOL

Supply voltage

VCC1-VCC6

Input voltage

VIN

Power consumption

PD

PD derating ratio

Operating temperature

TOPR

Storage temperature

TSTG

(Unless otherwise specified, TA = +25 ˚C)

CONDITIONS

RATING

UNIT

7

V

–0.3 to VCC + 0.3

V

TA ≤ +25 ˚C

570

mW

TA > +25 ˚C

4.5

mW/˚C

–30 to +70

˚C

–55 to +150

˚C

RECOMMENDED OPERATING CONDITIONS

PARAMETER

SYMBOL APPLICABLE PINS

Supply voltage

VCC1-VCC6

Standard CCD input signal level VCCD

CCDIN

Input "Low" voltage

Input "High" voltage

VIL ‡, SCK, SDATA,

‰, Â, fl/H1, fl/H2,

VIH fl/H3, Î, Ô, Å

S/H pulse width

tWS/H Â, fl/H1, fl/H2, fl/H3

Clamp pulse width

tWC

Î, Å

A/D converter clock frequency

fADCK

ADCK

Serial interface clock frequency fSCK

SCK

RATING

4.75 to 5.25

200

0 to 0.7

2.1 to VCC

≥ 12

≥ 1.5

≤ 18

≤ 300

UNIT

V

mVp-p

V

V

ns

µs

MHz

kHz

12

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