DS-138T

1. The DS-138T is miniaturized infrared

receiver for remote control and other applications

●Package Dimensions:

requiring improved ambient light rejection.

2. The separate PIN diode and preamplifier IC are

assembled on a single lead frame.

3. The epoxy package contains a special IR filter.

4. This module has excellent performance even in

disturbed ambient light applications and provides

protection against uncontrolled output pulses.

● Features

1. Photo detector and preamplifier in one package .

2. Internal filter for PCM frequency.

3. High immunity against ambient light. 4. Improved shielding against electric field disturbance.

5. 3.0V or 5.0V supply voltage; low power consumption.

6. TTL and CMOS compatibility.

7. BiCMOS manufacture IC;ESD HBM>4000V;

NOTES:

MM>250V. 1.All dimensions are in millimeters.

8. Suitable transmission code: NEC code,RC5 code. 9. The product itself will remain within RoHS compliant

Version.

2.Tolerance is ±0.30mm (0.004’’) unless otherwise specified.

3.Specifications are subject to change without notice.

● Applications:

1. It can be used for TVs、VTRs、audio equipment air conditioners、 car stereo radio、toys、 home computers and all other equipment requiring remote control. ● BLOCK DIAGRAM PreampAmpLimiterB.P.FDemodulatorPDIntegratorABLCComparator Vcc Vout GND REV: 1.0 Page: 1 of 7 DS-138T

󰀕 Absolute Maximum Ratings(Ta=25℃) Parameter Symbol Ratings Supply Voltage Operating Temperature Storage Temperature Soldering Temperature Vcc Topr Tstg Tsol 0~6.0 -25~+80 -40~+85 260 Unit V ℃ ℃ ℃ Notice — — — 4mm from mold body less than 5 sec *Recommended Operating Condition Supply Voltage Rating: Vcc 4.5V to 5.5V 󰀕 Electrical And Optical Characteristics(Ta=25℃)

Parameter Symbol Supply Voltage Supply Current Vcc Icc

Condition

DC voltage No signal input At the ray axis

Ratings

Min. Typ. Max.

2.7 — — —

— 0.8 14 6

6.0 1.0 —

Unit

V mA

Reception Distance L

In the range of 45°cone

—

m

B.P.F Center Frequency Peak Wavelength Half Angle fo λp θ

— — 38 — KHz

— — 940 — nm —

Specified by the output TH period

within a range from 10cm to the arrival distance (average value of 50

pulses) Specified by the output TL period within a range from 10cm to the arrival distance (average value of 50

pulses)

10cm over the ray axis 10cm over the ray axis

— 45 — deg

High Level Pulse Width TH400 — 800μS

Low Level Pulse Width TL400 — 800μS

High Level Output Voltage Low Level Output Voltage VHVL

2.7 —

— —

— 0.25

V 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.

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DS-138T 󰀕 Available Types For Different Carrier Frequencies Type Carrier Frequencies(Typ) 32.7 kHz 36.7 kHz 38.0 kHz 40.0 kHz 56.7 kHz DS-133T DS-136T DS-138T DS-140T DS-156T

PART Chip Compound

MATERIAL Silicon Epoxy

COLOR Black Black

󰀕 Test Method：

The specified electro-optical characteristics is satisfied under the following Conditions at the controllable distance.

① Measurement place

A place that is nothing of extreme light reflected in the room. ② 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)

③ 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). ④ Measuring system

According to the measuring system shown in Fig.-3

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DS-138T 󰀕 Application Circuit InfraredEmittingDiode Fig.1 Transmitter Wave Form Transmitter Output 600us600usIRMVccOutGND47Ω +5V>10kΩ47uF uC GNDD.U.T Output PulseVHTLTHVL Fig.3 Measuring System Fig.2 Measuring MethodMeasuring Method20cm>10kΩ5.0∮0.1V+10uFStandard TransmitterStandardTransmitter100kΩVoutOscilloscope Vcc GNDVoutD.U.T VoutOscilloscope REV: 1.0 Page: 4 of 7 DS-138T 󰀕 Electrical And Optical Curves(Ta=25℃) Fig.5 Relative Transmission Distance vs. Direction0102030 Fig.4 Relative Spectral Sensitivity vs. (%)1.2Wavelength1.0Relative Responsitibity 0.81.0400.60.90.85060700.40.20.78090075085095010501150(nm)0.50.30.10.20.40.6Wavelength Relative Transmission Distance(mS)1.0Fig.6 Output Pulse Diagram(mA)2.01.8Fig.7 Supply Current vs. Ambient Temperature 0.8on1.61.4To n ,T o ff -Output Pulse Length 0.6offSupply Current 10000(mW/cm ) 21.21.00.80.60.40.40.2=950nm,Optical Test Signal,Fig.80.20.00.10.0-300306090(　C)1101001000Irradiance Ambient Temperature Fig.8 Frequency Dependence of Responsivity1.0(m)20Fig.9 Arrival Distance Vs. Ambient Temperature0.816Transmission Distance 00.612Rel. Responsitivity0.480.2040.00.700.80.91.01.11.21.3-40-20020406080100(　C)Relative FrequencyAmbient Temperature REV: 1.0 Page: 5 of 7 DS-138T 󰀕 Typical Electro-Optical Characteristics Curves Fig.-10 Relative Transmission Distance vs. Center Carrier Frequency DS- 133T DS- 136T DS- 138T

Center Carrier Frequency (kHz) Center Carrier Frequency (kHz) Center Carrier Frequency (kHz)

DS- 140T DS- 156T

Center Carrier Frequency (kHz) Center Carrier Frequency (kHz)

Center Carrier Frequency (kHz) Center Carrier Frequency (kHz)

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DS-138T 󰀕 Reliability Test Item And Condition The reliability of products shall be satisfied with items listed below. Confidence level: 90% LTPD: 10%

Test Items Test Conditions

Failure Judgement Criteria Samples(n) Defective(c)

1 cycle -40℃ +25℃ +85℃ (30min)(5min)(30min) Temperature cycle

300 cycle test High temperature test

Low temperature storage High temperature High humidity

Temp: +85℃ Vcc:5V 1000hrs

n=22,c=0

n=22,c=0

L0≦ L×0.8 L45≦ L×0.8

L: Lower specification limit

Temp: -40℃ 1000hrs Ta: 85℃, RH: 85% 1000hrs

Temp: 260±5℃ 10sec

4mm From the bottom of the package

n=22,c=0

n=22,c=0

n=22,c=0

Solder heat

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