Document
EVERLIGHT ELECTRONICS CO.,LTD.
Technical Data Sheet Infrared Remote-control Receiver Module
Features :
• Photo detector and preamplifier in one package • Internal filter for PCM frequency • Improved shielding against electrical field disturbance • TTL and CMOS compatibility • Output active low • Low power consumption • Improved immunity against ambient light • Suitable burst length ≧ 10 cycles/burst
IRM-2638VS18
Descriptions
‧The IRM-2638VS18 are miniaturized receivers for infrared remote control systems. PIN diode and preamplifier are assembled on lead frame, the epoxy package is designed as IR filter. The demodulated output signal can directly be decoded by a microprocessor. IRM-2638VS18 is the standard IR remote control receiver series, supporting all major transmission codes.
Applications
1. Optical switch 2. Light detecting portion of remote control ․AV instruments such as Audio, TV, VCR, CD, MD, etc. ․Home appliances such as Air-conditioner, Fan , etc. ․The other equipments with wireless remote control. ․CATV set top boxes ․Multi-media Equipment
PART Chip Shell
MATERIAL Silicon Tinplate
COLOR Black
Silver-white
Everlight Electronics Co., Ltd. Device No:DMO-026-374
http:\\www.everlight.com Prepared date:03-15-2005
Rev 1
Page: 1 of 9
Prepared by:Carryll Hsu
EVERLIGHT ELECTRONICS CO.,LTD.
Package Dimensions
IRM-2638VS18
OUT GND Vcc
Notes: 1.All dimensions are in millimeters. 2.Tolerances unless dimensions ±0.3mm.
Absolute Maximum Ratings (Ta=25℃)
Parameter
Symbol
Rating
Supply Voltage Operating Temperature Storage Temperature
Vcc Topr Tstg
6 -25 ~ +80 -40 ~ +85
Soldering Temperature
Tsol
260
Unit Notice V ℃ ℃ ℃ 4mm from mold body less than 10 seconds
Everlight Electronics Co., Ltd. Device No:DMO-026-374
http:\\www.everlight.com Prepared date:03-15-2005
Rev 1
Page: 2 of 9
Prepared by:Carryll Hsu
EVERLIGHT ELECTRONICS CO.,LTD.
IRM-2638VS18
Recommended Operating Condition
Supply Voltage Rating: Vcc 4.5V to 5.5V
Electro-Optical Characteristics (Ta=25℃, and Vcc=5 V)
Parameter
Symbol MIN. TYP. MAX.
Consumption Current
Icc --- 1.2 ---
B.P.F Center Frequency Peak Wavelength Reception Distance
Half Angle(Horizontal) Half Angle(Vertical)
Fo --- 38 ---
λp --- 940 ---
L0 8
--- ---
L45 5
--- ---
Θh --- 45 ---
Θv --- 45 ---
High Level Pulse Width
TH 400 --- 800
Low Level Pulse Width
TL 400 --- 800
Unit Condition mA No signal input KHz nm
m
deg
At the ray axis *1
deg
μs At the ray axis μs *2
High Level Output Voltage VH
4.5
---
--- V
Low Level Output Voltage
VL
---
0.2
0.5 V
*1:The ray receiving surface at a vertex and relation to the ray axis in the range of θ= 0° and θ=45°. *2:A range from 30cm to the arrival distance. Average value of 50 pulses.
Everlight Electronics Co., Ltd. Device No:DMO-026-374
http:\\www.everlight.com Prepared date:03-15-2005
Rev 1
Page: 3 of 9
Prepared by:Carryll Hsu
EVERLIGHT ELECTRONICS CO.,LTD.
IRM-2638VS18
Test Method:
The specified electro-optical characteristics is satisfied under the following Conditions at the controllable distance.
cMeasurement place A place that is nothing of extreme light reflected in the room.
dExternal light Project the light of ordinary white fluorescent lamps which are not high Frequency lamps and must be less then 10 Lux at the module surface. (Ee≦10Lux)
eStandard transmitter A transmitter whose output is so adjusted as to Vo=400mVp-p and the output Wave form shown in Fig.-1.According to the measurement method shown in Fig.-2 the standard transmitter is specified. However , the infrared photodiode to be used for the transmitter should be λp=940nm,∆λ=50nm. Also, photodiode is used of PD438B(Vr=5V).
fMeasuring system According to the measuring system shown in Fig.-3
Fig.-1 Transmitter Wave Form
IR TANSMITTER OUTPUT WAVE FORM
Carrier frequency is adjusted to center frequency of each product.
D.U.T output Pulse
OUTPUT PULSE OF DEVICE
Duty=0.5
Everlight Electronics Co., Ltd. Device No:DMO-026-374
http:\\www.everlight.com Prepared date:03-15-2005
Rev 1
Page: 4 of 9
Prepared by:Carryll Hsu
EVERLIGHT ELECTRONICS CO.,LTD.
IRM-2638VS18
Fig.-2 Measuring Method
20cm
10k
+5.0± 0.1V
10uF
Standard Transmitter
Vout
100k
Oscilloscope
Fig.-3 Measuring System
Standard Transmitter
L: Transmission Distance
Vcc
θ OUT
θ
D.U.T
Vout
GND
θ: Angle Of Horizontal & Vertical Direction
Block Diagram:
IN Input
Carrier frequency f0
Modulated IR signal min 10 pulses
Oscillator
Application Circuit:
Vs
CGA & filter
Demodulator
AGC/ATC & digital control
GND
OUT µC
RC Filter should be connected closely between Vcc pin and GND pin.
Everlight Electronics Co., Ltd. Device No:DMO-026-374
http:\\www.everlight.com Prepared date:03-15-2005
Rev 1
Page: 5 of 9
Prepared by:Carryll Hsu
EVERLIGHT ELECTRONICS CO.,LTD.
IRM-2638VS18
Typical Electro-Optical Characteristics Curves
Fig.-4 Relative Spectral Sensitivity vs.
Fig.-5 Relative Transmission Distance vs.
Wavelength
Direction
θ
Fig.-6 .