NJL71H/71V/72H/73H/74H000A

- 2 -

IR TRANSMITTER

OUTPUT WAVE FORM

Carrier frequency is adjusted to

center frequency of each product

T

WL

WH

OUTPUT PULSE

OF DEVICE

L

600us

600us

T

V

20cm

+

-

10K

Vout

100K

4.9-5.1V

SENSING DISTANCE : L

STANDARD

TRANSMITTER

Vout

Vcc

OUT

GND

s RECOMMENDED OPERATING CONDITION

Supply Voltage Range

2.4 V to 5.5V

°C)

PARAMETER

SYMBOL

TEST CONDITION

MIN

TYP

MAX

UNIT

Supply Current

Icc

No Signal Input

—

0.43

0.6

mA

Transmission Distance

Lc

Direction of Ray Axis *1

13

18

—

m

Directivity

θL

θV

Angle of half Lc, Horizontal *2

Angle of half Lc, Vertical *2

—

—

45

30

—

—

deg

deg

Output Voltage Low

VL

No Load

—

0.2

0.5

V

Output Voltage High

VH

No Load

2.8

—

—

V

Low Level Pulse Width

TwL

See Test Circuit

350

—

800

µs

High Level Pulse Width

TwH

See Test Circuit

400

—

850

µs

Center Frequency

fo

See Line-up

36.0

—

40.0

kHz

Note *1:Test with each center carrier frequency under the test condition shown below.

*2:Place major axis of elliptic lens in horizontal direction and minor vertical.

s TEST METHOD

Test condition in as follows:

(1) Standard transmitter:

Transmitting waveform is shown in Fig.1

Transmitting power should be adjusted

so that output voltage Vout will be

400mVp-p.(Test circuit is shown in Fig.2)

Regarding IR LED used for transmitter,

λp=940nm, ∆λ=50nm.

Regarding photo diode,

Sensitivity

S=26nA/Lx

in case light source temperature2856

°K,

Ee=100Lx, VR=5V

(2) Test system: Shown in Fig.3.

Fig.1 TRANSMITTER WAVE FORM

Fig.2 STD.TRANSMITTER TEST CIRCUIT

Fig.3 TEST SYSTEM