ERM-TU38
INFRARED RECEIVER MODULE
Description
The ERM-TU38 are miniaturized infrared receivers
for infrared remote control systems. PIN diode and
preamplifier are assembled on lead frame. The
type of epoxy package can filter the visual
interference. The demodulated output signal can
directly be decoded by a microprocessor.
Features
Photo detector and preamplifier in one package
Internal filter for PCM frequency
High immunity against ambient light
Improved shielding against electric field
disturbance
3.0 Volt supply voltage ; low power consumption
TTL and CMOS compatibility
Applications
AV instruments (Audio, TV, VCR, CD player)
Home appliances (Air-conditioner, Fan, Light)
Remote control for wireless devices
Absolute Maximum Ratings (Ta =25℃)
Dimension in mm
Supply Voltage –0.3 ~ 6.0Volt
Junction Temperature 100℃
Operating Temperature -25 ~ +85℃
Storage Temperature -25 ~ +85℃ (t<10s, 1mm from case)
Soldering Temperature 260℃
Optoelectric Characteristics (Ta =25℃, VS=5V)
Parameter
Symbol
VCC
Supply Voltage
Icc
Current Consumption
λP
Peak Sensitivity Wavelength
Output form
High Level Output Voltage
VOH
Low Level Output Voltage
VOL
High Level Output Pulse Width
Twh
Low Level Output Pulse Width
Twl
Receiving Distance
L1
Δθ
Controlled Angle
Min.
2.7
Typ. Max.
3.0
5.5
1.1
2.5
940
Active low output
2.8
3.0
0.2
0.4
500
800
500
800
10
±45
Unit
V
mA
nm
V
V
µS
µS
m
deg
Elite Enterprises (H.K.) Co., Ltd.
Version : 01
Flat 2505, 25/F., Nanyang Plaza, 57 Hung To Road, Kwun Tong, H.K.
Tel: (852) 2723-3122 Fax: (852) 2723-3990 Email: info@elite-ent.com.hk
Page : 1 / 5
ERM-TU38
INFRARED RECEIVER MODULE
Typical Electrical / Optical Characteristics curves
(25℃ Ambient Temperature Unless Otherwise Noted)
Elite Enterprises (H.K.) Co., Ltd.
Version : 01
Flat 2505, 25/F., Nanyang Plaza, 57 Hung To Road, Kwun Tong, H.K.
Tel: (852) 2723-3122 Fax: (852) 2723-3990 Email: info@elite-ent.com.hk
Page : 2 / 5
ERM-TU38
INFRARED RECEIVER MODULE
Note 1.Distance between emitter & detector specifies maximum distance that output form satisfies
the standard
(3-2) Under the conditions below the standard transmitter
(1) Measuring place …
Indoor without extreme reflector of light
(2) Ambient light source …
Detecting surface lamination shall be 200 ± 50Lux under ordinary white
fluorescence lamp or high frequency lightning
(3) Standard transmitter …
Burst wave indicated in drawing Fig.1 of Standard transmitter shall be to 50mVp-p
under the measuring circuit specified in Fig.2.
Block Diagram
Functional Block Diagram
Noise Det. &
Gain Ctrl
IN
I-V
Converter
& Input
Bias
Control
VCC
Voltage
Reference Circuit
Band-pass
filter
Pre
Amp
AGC
Amp
Limit
Amp
Integrator
& Wave
Shaping
Comparator
Output
Stage
OUT
Fast Bias Circuit
Frequency
Setting
Frequency
Trimming
Threshold
Control
Circuit
GND
Freq. Selection
Option Pads
(S1-S4)
Trimming Pads
(T1-T5)
Text Method
A. Standard Transmitter
Elite Enterprises (H.K.) Co., Ltd.
Version : 01
Flat 2505, 25/F., Nanyang Plaza, 57 Hung To Road, Kwun Tong, H.K.
Tel: (852) 2723-3122 Fax: (852) 2723-3990 Email: info@elite-ent.com.hk
Page : 3 / 5
ERM-TU38
INFRARED RECEIVER MODULE
B. Detection Length Test
C. Pulse Width Test
Elite Enterprises (H.K.) Co., Ltd.
Version : 01
Flat 2505, 25/F., Nanyang Plaza, 57 Hung To Road, Kwun Tong, H.K.
Tel: (852) 2723-3122 Fax: (852) 2723-3990 Email: info@elite-ent.com.hk
Page : 4 / 5
ERM-TU38
INFRARED RECEIVER MODULE
Recommended application circuit :
Reliability
TEST ITEM
High Temperature
High Temp. & High Hum.
Low Temperature
Heat Cycle
Dropping
Note 2. 3-2
Note 3. 3-2
TEST CONDITION
Ta=+80℃
t=240H
Ta=+40℃ 90%RH
t=240H
Ta=-25℃
t=240H
-25℃(0.5H) ∼ +80℃(0.5H) 20Cycle
Test devices shall be dropper 3 times naturally onto
hard wooden board from a 75cm position
STANDARD
Note 2.
Note 2.
Note 2.
Note 2.
Note 3.
(electro-optical characteristics) shall be satisfied after leaving 2 hours in the normal temperature.
(electro-optical characteristics) shall be satisfied and no conditions deforms and destruction of
appearance. (excepting deforms of terminals)
Inspection standard
1. Among electrical characteristics total number shall be inspected on items blow
a. Front distance between emitter & detector inspection standard
b. Current consumption
c. H level output voltage
d. L level output voltage
2. Items except above mentioned are not inspected particularly, but shall fully satisfy
Caution (When use and storage of this device)
1. Store and use where there is no force causing transformation or change in quality.
2. Store and use where there is no corrosive gas or sea (salt) breeze.
3. Store and use where there is no extreme humidity.
4. Solder the lead-pin within the condition of ratings. After solder do not add exteriors force.
5. Do not wash this device wipe the stains of diode side with a soft cloth you can use the solvent ethyl alcohol or
isopropyl one only.
6. To prevent static electricity damage to the Pre-AMP, make sure that the human body, the soldering iron is
connected to ground before using.
7. Put decoupling device between Vcc and GND for reduce the noise from power supply line.
8. The performance of remote-control system depends on environments condition and ability of
peripheral parts, Customer should evaluate the performance as total system in those conditions after system up
with components such as commander, micon and this receiver module.
Others
1. This devices is not design to endure radioactive rays and heavily charged particles.
2. In case where any trouble questions arise, both parties agree to make full discussion covering the said problem.
Elite Enterprises (H.K.) Co., Ltd.
Version : 01
Flat 2505, 25/F., Nanyang Plaza, 57 Hung To Road, Kwun Tong, H.K.
Tel: (852) 2723-3122 Fax: (852) 2723-3990 Email: info@elite-ent.com.hk
Page : 5 / 5