RPM7236-R datasheet(2/7 Pages) ROHM

2 / 7 page

RPM7236-R series

Photo Link Module

Rev.C

2/6

Block diagram

AMP

100k

Ω

Comparator

Limiter

ROUT

GND

VCC

I / V

BPF

Demodulator

and integrator

Terminal description

Pin name

Pin No.

Function

1VOUT

OUTPUT TERMINAL

GROUND

POWER SUPPLY

GND

VCC

Electrical, Optical characteristics (Unless otherwise noted Ta=25

°C, VCC=3V)

Parameter

Symbol

Min.

Typ.

Max.

Unit

Conditions

Consumption current

ICC

TON

TOFF

300

µA

No outside light, no signal input.

Outer light condition Ee

< 10 (Ix)

Isink < 200

µA

Effective distance

High level output voltage

Low level output voltage

ON pulse width

OFF pulse width

Central frequency

Vertical half angle

∗1 The burst wave form mentioned in Fig.1 is to be transmitted from standard transmitter(Fig.2)

Measure 10th or later pulse width after beginning of transmission.

∗2 The angle which effective distance become 50% of L. (effective distance at θ=0°)

−

600

500

−

µs

0.5

800

Horizontal half angle

θ 1/2

600

36.0

∗1

Outer light condition Ee

< 10 (Ix)

∗1

Outer light condition Ee

< 10 (Ix)

∗1

∗2

−

400

2.5

−

400

−

µs

800

kHz

−

deg

−

Measurement Conditions

(1) Transmit signal

Fig.1 Transmit signal.

600

µs

600

µs

Carrier frequency

=fo, Duty=50%

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