JRC NJL25V User Manual

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NJL25V/28H000

INFRARED REMOTE CONTROL RECEIVER

■ GENERAL DESCRIPTION

NJL25V/28H000 series are small and high performance receiving devices for infrared remote control system.
They can operate under low and wide supply voltage (2.7V to 5.5V). NJL25V/28H000 series are mesh window type to improve

EMI characteristic. Even under strong EMI noise condition such as TV, Air-conditioner, etc., NJL25V/28H000 series can work

normally.

■ FEATURES

1. Wide and low supply voltage 2.7V to 5.5V

2. Low supply current 0.56mA max.

3. Metal case type with mesh window

4. Line-up for various center carrier frequencies

■APPLICATIONS

1. AV instruments such as Audio, TV, VCR, CD, MD, DVD, STB etc.

2. Home application such as Air-conditioner, Fan etc.

3. Battery operated instruments such as Toy, Camera etc.

■ LINE-UP

View Type Side Top
Height

Carrier
Frequency

fo= 36 kHz NJL25V360 NJL28H360

36.7 kHz NJL25V367 NJL28H367
38 kHz NJL25V380 NJL28H380
40 kHz NJL25V400 NJL28H400

Regarding the other frequency or packages, please contact to New JRC individually.

■ BLOCK DIAGRAM

15.6mm

15mm

Vcc

Head Amp 2nd Amp 3rd Amp

B.P. F.

PD

ABLC

Detect or

Comparator

22K

Vout

GND

■ ABSOLUTE MAXIMUM RATINGS

PARAMETER SYMBOL RATINGS UNIT
Supply Voltage Vcc

Operating Temperature Range Topr
Storage Temperature Range Tstg -40 to +85 °C
Soldering Temperature Tsol 260 (5sec. 4.0mm from mold body) °C

(Ta=25°C)

6.3 V

-30 to +80 °C

Ver.2003-10-24

-1-

NJL25V/28H000

■ RECOMMENDED OPERATING CONDITION

Supply Voltage Range Vcc 2.7 V to 5.5V

■ ELECTRO-OPTICAL CHARACTERISTICS

PARAMETER SYMBOL TEST CONDITION MIN TYP MAX UNIT
Supply Current Icc No Signal Input

Transmission Distance Lc
Directivity

Output Voltage Low VL No Load
Output Voltage High VH No Load
Low Level Pulse Width TwL See Test Circuit
High Level Pulse Width TwH See Test Circuit
Center Frequency fo See Line-up

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.

θL
θV

■TEST METHOD

Test condition is 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.

SENSING DISTANCE : L

STANDARD

TRANSMITTER

Fig.3 TEST SYSTEM

(Vcc=3.3V,Ta=25°C)

— —

Direction of Ray Axis *1 10 15
Angle of half Lc, Horizontal *2
Angle of half Lc, Vertical *2

—
—
—

45
30

0.2

2.8 — —
400 — 850
350 — 800

36.0 — 40.0

Carrier frequency=fo

Carrier Duty=50%

Transmit Signal

Output Signal

600μ

T

WL

600μs

TWH

Fig.1 TRANSMITTER WAVE FORM

Vcc

OUT

Vout

GND

20cm

100K

Fig.2 STD.TRANSMITTER TEST CIRCUIT

0.56 mA

10K

+

-

—
—
—

0.5

m
deg
deg

V
V

µs
µs

kHz

4.9 to 5.1V

Vout

V

H

V

L

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Ver.2003-10-24