IRM-3638T

Infrared Remote-control Receiver Module

IRM-3638T Features

• Photo detector and preamplifier in one package

• Internal filter for PCM frequency

• Improved inner shielding against electrical field disturbance

• TTL and CMOS compatibility

• Low power consumption

• Improved immunity against ambient light

≧

• Suitable burst length 10 cycles/burst

• Pb free

• BiCMOS manufacture IC ; ESD HBM>4000V ; MM>250V

• The product itself will remain within RoHS compliant version.

Descriptions

The IRM-3638T is 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-3638T is the standard

IR remote control receiver series, supporting all major

transmission codes.

Applications

․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 MATERIAL COLOR

Chip Silicon Black Compound Epoxy Black

IRM-3638T

IRM-3638T Absolute Maximum Ratings (Ta=25℃)

Parameter Symbol Rating Unit Notice

Supply Voltage Vcc 0~6 V Operating Temperature Topr -25 ~ +80 ℃

Storage Temperature Tstg -40 ~ +85 ℃

Soldering Temperature Tsol 260 ℃4mm from mold body less than 10 seconds

Recommended Operating Condition

Supply Voltage Rating: Vcc 2.7V to 5.5V

Electro-Optical Characteristics (Ta=25℃, and Vcc=3.0V)

Parameter Symbol

MIN.

TYP.

MAX.

Unit

Condition Consumption Current Icc --- 0.8 1.0 mA No signal input B.P.F Center Frequency Fo --- 38 --- KHz Peak Wavelength λp--- 940 --- nm

L014 --- ---

Reception Distance

L45 6 --- ---

m

Half Angle(Horizontal) Θh--- 45 --- deg At the ray axis

*1

Half Angle(Vertical) Θv--- 45 --- deg

High Level Pulse Width T H400 --- 800 μs Low Level Pulse Width T L400 --- 800 μs At the ray axis

*2

High Level Output Voltage V H 2.7 --- --- V

Low Level Output Voltage V L--- --- 0.25 V

Notes:

*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.IRM-3638T

Test Method：

The specified electro-optical characteristics is satisfied under the following

Conditions at the controllable distance.

c Measurement place

A place that is nothing of extreme light reflected in the room.

d External 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)

e Standard 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).

(Standard light / Light source temperature 2856°K).

f Measurin

g system

According to the measuring system shown in Fig.-3

EVERLIGHT ELECTRONICS CO.,LTD.

IRM-3638T

The Notice of Application:

Transmission of remote control signal consist of four parts: Encode Part, IR Transmitter Source, IRM device, Decode Part

1. When IRM-3638T code select frequency, it need to well understand the center system of encode part.

2. Strong or weak light of IR Transmitter can affect distance of transmission.

3. When using IRM-3638T device, it requires the composition of code pattern to reach the demand as follows:

Minimum t burst

( number of pulses per burst)

Minimum t burst_gap ( number of pulses between two burst)

Minimum t pause

10 pulses

14 pulses

25 msec

4. It needs to ensure the translation range of decode part if it is applied to the pulse-width range.

If the above items hardly assure of its application, it’ll cause NG(no good) message from the edge of signal.

IRM-3638T Code Property:

Data format Data format NEC O Sony 12 Bit O RC5 _ Philips O Sony 15 Bit X RC6 _ Philips O Sony 20 Bit X RCA _ Thomson

X

Matsushita

O

Toshiba O Mitsubishi O Sharp O Zenith O JVC O

High data rate (4000 bit/s)

X

EVERLIGHT ELECTRONICS CO.,LTD.\nIRM-3638T\nTypical Electro-Optical Characteristics Curves\nFig.-4 Relative Spectral Sensitivity vs. Wavelength Fig.-5 Relative Direction Transmission Distance vs.\n\nRelative Transmission Distance (%)\n\n80 60 40\n\n20 0\n\n-60\n\n-40\n\n-20\n\n0\n\n20\n\n40\n\n60\n\nAngle (deg)\n\nFig.-6 Output Pulse Length vs. Arrival Distance\n\nFig.-7 Arrival Distance vs. Supply Voltage\n17.5\n\nOutput Pulse Width TWL (µsec)\n\nTransmission Distance Lc (m)\n0 2 4 6 8 10 12 14 16\n\n10.5 7.0 3.5\n0\n\nTransmission Distance Lc (m)\n\n2.7 3.0 3.3 3.5 3.8 4.1 4.4 4.7 5.0 5.3 5.5\n\nSupply Voltage Vcc (V)\n\nEverlight Electronics Co., Ltd. Device No：SZDMO-036-050\n\nhttp:\\\\www.everlight.com Prepared date：20-Sep-06\n\nRev 1\n\nPage: 7 of 10\n\nPrepared by：Hao Liu\n\n\r\n

EVERLIGHT ELECTRONICS CO.,LTD.\nIRM-3638T\nTypical Electro-Optical Characteristics Curves\nFig.-8 Relative Transmission Distance vs. Center Carrier Frequency Fig.-9 Arrival Distance vs. Ambient Temperature\n\n17.5\n\n80 70\n\nTransmission Distance Lc (m)\n20 25 30 35 40 45 50\n\n90\n\n14.0 10.5 7.0 3.5\n\nRelative Distance (%)\n\n60 50\n\nCarrier Frequency (KHz)\n\nAmbient Temperature Ta (°C)\n\nEverlight Electronics Co., Ltd. Device No：SZDMO-036-050\n\nhttp:\\\\www.everlight.com Prepared date：20-Sep-06\n\nRev 1\n\nPage: 8 of 10\n\nPrepared by：Hao Liu\n\n\r\n

EVERLIGHT ELECTRONICS CO.,LTD.\nIRM-3638T\nReliability Test Item And Condition\nThe reliability of products shall be satisfied with items listed below. Confidence level：90% LTPD：10% Test Items 1 cycle Temperature cycle Test Conditions -40℃ +100℃ n=22,c=0 Failure Judgement Criteria Samples(n) Defective(c)\n\n(15min)(5min)(15min) 300 cycle test Temp: +100℃ L0≦ L×0.8 L45≦ L×0.8\n\nHigh temperature test Vcc:6V 1000hrs Low temperature storage High temperature High humidity Temp: -40℃ 1000hrs Ta: 85℃,RH:85% 1000hrs Temp: 260±5℃ 10sec 4mm From the bottom of the package.\n\nn=22,c=0\n\nn=22,c=0 L: Lower specification limit\n\nn=22,c=0\n\nSolder heat\n\nn=22,c=0\n\nEverlight Electronics Co., Ltd. Device No：SZDMO-036-050\n\nhttp:\\\\www.everlight.com Prepared date：20-Sep-06\n\nRev 1\n\nPage: 9 of 10\n\nPrepared by：Hao Liu\n\n\r\n

EVERLIGHT ELECTRONICS CO.,LTD.\nIRM-3638T\nPacking Quantity Specification\n1. 1500 PCS/1Box 2. 10 Boxes/1Carton\n\nLabel Form Specification\nCPN: Customer’s Production Number P/N : Production Number QTY: Packing Quantity CAT: Ranks HUE: None REF: Reference LOT No: Lot Number MADE IN TAIWAN: Production Place\n\nIRM-3638T\n\nNotes\n1. Above specification may be changed without notice. EVERLIGHT will reserve authority on material change for above specification. 2. When using this product, please observe the absolute maximum ratings and the instructions for using outlined in these specification sheets. EVERLIGHT assumes no responsibility for any damage resulting from use of the product which does not comply with the absolute maximum ratings and the instructions included in these specification sheets. 3. These specification sheets include materials protected under copyright of EVERLIGHT corporation. Please don’t reproduce or cause anyone to reproduce them without EVERLIGHT’s consent.\n\nEVERLIGHT ELECTRONICS CO., LTD. Office: No 25, Lane 76, Sec 3, Chung Yang Rd, Tucheng, Taipei 236, Taiwan, R.O.C\n\nTel: 886-2-2267-2000, 2267-9936 Fax: 886-2267-6244, 2267-61, 2267-6306 http:\\\\www.everlight.com\n\nEverlight Electronics Co., Ltd. Device No：SZDMO-036-050\n\nhttp:\\\\www.everlight.com Prepared date：20-Sep-06\n\nRev 1\n\nPage: 10 of 10\n\nPrepared by：Hao Liu\n\n\r\n