TSOP943.., TSOP945..
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Rev. 1.2, 11-Dec-2018 1Document Number: 82835
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IR Receiver Modules for Remote Control Systems
DESIGN SUPPORT TOOLS
FEATURES
• Improved dark sensitivity
• Improved immunity against optical noise
• Very low supply current
• Photo detector and preamplifier in one package
• Internal filter for PCM frequency
• Supply voltage: 2.0 V to 3.6 V
• Insensitive to supply voltage ripple and noise
• Material categorization:
for definitions of compliance please see
www.vishay.com/doc?99912
MECHANICAL DATA
1 = OUT, 2 = GND, 3 = VS
DESCRIPTION
The TSOP94... series devices are the latest generation miniaturized IR receiver modules for infrared remote control systems.
These series provide improvements in sensitivity to remote control signals in dark ambient as well as in sensitivity in the
presence of optical disturbances e.g. from CFLs.
The devices contain a PIN diode and a preamplifier assembled on a lead frame. The epoxy package contains an IR filter. The
demodulated output signal can be directly connected to a microprocessor for decoding.
The TSOP943.. and TSOP945.., series devices are designed to receive short burst codes (6 or more carrier cycles per burst).
The third digit designates the AGC level (AGC3 or AGC5) and the last two digits designate the band-pass frequency (see table
below). The higher the AGC, the better noise is suppressed, but the lower the code compatibility. AGC3 provides enhanced
noise suppression and AGC5 provides maximized noise suppression. Generally, we advise to select the highest AGC that
satisfactorily receives the desired remote code.
These components have not been qualified to automotive specifications.
Note
• 30 kHz and 33 kHz only available on written request
16672
1
2
3
2
3
click logo to get started
Available
Models
PARTS TABLE
AGC ENHANCED NOISE SUPPRESSION
(AGC3)
MAXIMIZED NOISE SUPPRESSION
(AGC5)
Carrier frequency
30 kHz TSOP94330 TSOP94530
33 kHz TSOP94333 TSOP94533
36 kHz TSOP94336 (1)(5) TSOP94536
38 kHz TSOP94338 (2)(4) TSOP94538
40 kHz TSOP94340 TSOP94540
56 kHz TSOP94356 TSOP94556 (3)
Package Mold
Pinning 1 = OUT, 2 = GND, 3 = VS
Dimensions (mm) 6.0 W x 6.95 H x 5.6 D
Mounting Leaded
Application Remote control
Best choice for (1) RCMM (2) RECS-80 Code (3) r-map (4) XMP-1, XMP-2 (5) MCIR
TSOP943.., TSOP945..
www.vishay.com Vishay Semiconductors
Rev. 1.2, 11-Dec-2018 2Document Number: 82835
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
BLOCK DIAGRAM APPLICATION CIRCUIT
Note
• Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only
and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of this specification
is not implied. Exposure to absolute maximum rating conditions for extended periods may affect the device reliability
30 kΩ
2
3
1
Demo-
pass
AGCInput
PIN
Band dulator
Control circuit
16833-13
C1
IR receiver
GND
Circuit
μC
R1
+ VS
GND
Transmitter
with
TSALxxxx VS
VO
17170-12
OUT
R1 and C1 recommended to reduce supply ripple for VS < 2.2 V
ABSOLUTE MAXIMUM RATINGS
PARAMETER TEST CONDITION SYMBOL VALUE UNIT
Supply voltage VS-0.3 to +3.6 V
Supply current IS3mA
Output voltage VO-0.3 to (VS + 0.3) V
Output current IO5mA
Junction temperature Tj100 °C
Storage temperature range Tstg -25 to +85 °C
Operating temperature range Tamb -25 to +85 °C
Power consumption Tamb ≤ 85 °C Ptot 10 mW
Soldering temperature t ≤ 10 s, 1 mm from case Tsd 260 °C
ELECTRICAL AND OPTICAL CHARACTERISTICS (Tamb = 25 °C, unless otherwise specified)
PARAMETER TEST CONDITION SYMBOL MIN. TYP. MAX. UNIT
Supply current Ev = 0, VS = 3.3 V ISD 0.25 0.37 0.45 mA
Ev = 40 klx, sunlight ISH -0.50- mA
Supply voltage VS2.0 - 3.6 V
Transmission distance Ev = 0, test signal see Fig. 1,
IR diode TSAL6200, IF = 50 mA d-32-m
Output voltage low IOSL = 0.5 mA, Ee = 0.7 mW/m2,
test signal see Fig. 1 VOSL - - 100 mV
Minimum irradiance Test signal: XMP code Ee min. - 0.07 0.15 mW/m2
Maximum irradiance tpi - 3.0/f0 < tpo < tpi + 3.5/f0,
test signal see Fig. 1 Ee max. 30 - - W/m2
Directivity Angle of half transmission
distance ϕ1/2 -± 45- °
TSOP943.., TSOP945..
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Rev. 1.2, 11-Dec-2018 3Document Number: 82835
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TYPICAL CHARACTERISTICS (Tamb = 25 °C, unless otherwise specified)
Fig. 1 - Output Delay and Pulse-Width
Fig. 2 - Pulse-Width vs. Irradiance in Dark Ambient
Fig. 3 - Test Signal
Fig. 4 - Pulse-Width vs. Irradiance in Dark Ambient
Fig. 5 - Frequency Dependence of Responsivity
Fig. 6 - Sensitivity in Bright Ambient
14337-5
Ee
T
tpi (1) t
V
O
VOH
VOL tpo (3) t
Optical Test Signal
(IR diode TSAL6200, N = 6 pulses, f = f0, T = 10 ms)
Output Signal
td (2)
(2) 4/f0 < td < 10/f0
(3) tpi - 3.0/f0 < tpo < tpi + 3.5/f0
(1) tpi ≥ 6/f0
10
100
1000
10000
0
0.05
0.10
0.15
0.20
0.25
0.30
0.1 10 1000 100 000
Axis Title
1st line
2nd line
2nd line
tpo - Output Pulse Width (ms)
Ee- Irradiance (mW/m2)
Output pulse width
Input burst length
λ= 950 nm,
optical test signal, Fig. 1
E
e
t
V
O
V
OH
V
OL
t
600 µs 600 µs
t = 60 ms
t
on
t
off
94 8134
Optical Test Signal
Output Signal, (see Fig. 4)
10
100
1000
10000
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
0.1 1 10 100 1000 10 000 100 000
Axis Title
1st line
2nd line
2nd line
ton, toff - Output Pulse Width (ms)
Ee- Irradiance (mW/m2)
ton
toff
λ= 950nm,
optical test signal, Fig. 3
10
100
1000
10000
0
0.2
0.4
0.6
0.8
1.0
1.2
0.7 0.9 1.1 1.3
Axis Title
1st line
2nd line
2nd line
Ee min./Ee- Relative Responsivity
f/f0- Relative Frequency
f = f
0
±5 %
∆f (3 dB) = f
0
/10
10
100
1000
10000
0
1
2
3
4
0.01 0.1 1 10 100
Axis Title
1st line
2nd line
2nd line
Ee min. - Threshold Irradiance (mW/m2)
Ee- Ambient DC Irradiance (W/m2)
Correlation with ambient light sources:
10 W/m2= 1.4 klx (std. ilum. A, T = 2855 K)
10 W/m2= 8.2 klx (daylight, T = 5900 K)
Wavelength of ambient
illumination: λ = 950 nm
TSOP943.., TSOP945..
www.vishay.com Vishay Semiconductors
Rev. 1.2, 11-Dec-2018 4Document Number: 82835
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Fig. 7 - Sensitivity vs. Supply Voltage Disturbances
Fig. 8 - Max. Envelope Duty Cycle vs. Burst Length
Fig. 9 - Sensitivity vs. Ambient Temperature
Fig. 10 - Relative Spectral Sensitivity vs. Wavelength
Fig. 11 - Directivity
Fig. 12 - Sensitivity vs. Supply Voltage
10
100
1000
10000
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1101001000
Axis Title
1st line
2nd line
2nd line
E
e min.
- Threshold Irradiance (mW/m
2
)
∆V
S RMS
- AC Voltage on DC Supply Voltage (mV)
f = 100 Hz
f = 10 kHz
f = 30 kHz
f = f
0
10
100
1000
10000
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
0 20406080100120140
Axis Title
1st line
2nd line
2nd line
Maximum Envelope Duty Cycle
Burst Length (Number of Cycles/Burst)
TSOP943..
TSOP945..
f = 38 kHz, Ee= 2 mW/m2
10
100
1000
10000
0
0.05
0.10
0.15
0.20
0.25
0.30
-30 -10 10 30 50 70 90
Axis Title
1st line
2nd line
2nd line
Ee min. - Threshold Irradiance (mW/m2)
Tamb - Ambient Temperature (°C)
10
100
1000
10000
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
750 850 950 1050 1150
Axis Title
1st line
2nd line
2nd line
S(λ)rel. - Relative Spectral Sensitivity
λ - Wavelength (nm)
1.0
30°
10
100
1000
10000
0
0.05
0.10
0.15
0.20
0.25
0.30
1.0 1.5 2.0 2.5 3.0 3.5 4.0
Axis Title
1st line
2nd line
2nd line
Ee min. - Threshold Irradiance (mW/m2)
VS- Supply Voltage (V)
TSOP943.., TSOP945..
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Rev. 1.2, 11-Dec-2018 5Document Number: 82835
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SUITABLE DATA FORMAT
This series is designed to suppress spurious output pulses
due to noise or disturbance signals. The devices can
distinguish data signals from noise due to differences in
frequency, burst length, and envelope duty cycle. The data
signal should be close to the device’s band-pass center
frequency (e.g. 38 kHz) and fulfill the conditions in the table
below.
When a data signal is applied to the product in the presence
of a disturbance, the sensitivity of the receiver is
automatically reduced by the AGC to insure that no spurious
pulses are present at the receiver’s output. Some examples
which are suppressed are:
• DC light (e.g. from tungsten bulbs sunlight)
• Continuous signals at any frequency
• Strongly or weakly modulated patterns from fluorescent
lamps with electronic ballasts (see Fig. 13 or Fig. 14)
Fig. 13 - IR Emission from Fluorescent Lamp
With Low Modulation
Fig. 14 - IR Emission from Fluorescent Lamp
With High Modulation
Note
• For data formats with long bursts (more than 10 carrier cycles) please see the datasheet for TSOP942.., TSOP944.., or TSOP946..
16920
10
100
1000
10000
0
1
2
3
4
5
6
7
0 5 10 15 20
Axis Title
1st line
2nd line
2nd line
IR Signal Amplitude
Time (ms)
16921
10
100
1000
10000
-60
-40
-20
0
20
40
0 5 10 15 20
Axis Title
1st line
2nd line
2nd line
IR Signal Amplitude
Time (ms)
TSOP943.. TSOP945..
Minimum burst length 6 cycles/burst 6 cycles/burst
After each burst of length
A gap time is required of
6 to 20 cycles
≥ 8 cycles
6 to 38 cycles
≥ 8 cycles
For bursts greater than
a minimum gap time in the data stream is needed of
20 cycles
> 6 x burst length
38 cycles
> 20 ms
Maximum number of continuous short bursts/second 2500 2500
RCMM code Preferred Yes
XMP-1 code Preferred Yes
r-map code Yes Preferred
RECS-80 code Preferred Yes
MCIR Preferred Yes
Suppression of interference from fluorescent lamps Fig. 13 and Fig. 14 Fig. 13 and Fig. 14
TSOP943.., TSOP945..
www.vishay.com Vishay Semiconductors
Rev. 1.2, 11-Dec-2018 6Document Number: 82835
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
PACKAGE DIMENSIONS in millimeters
Not indicated tolerances ± 0.2
Drawing-No.: 6.550-5169.01-4
Issue: 9; 03.11.10
13655
specications
according to DIN
technical drawings
3.9
0.5 max.
1.3
4.1
6
0.85 max.
0.89
1
1
8.25
(5.55)
6.95
5.3
30.5 ± 0.5
2.54 nom.
2.54 nom.
0.7 max.
5.6
marking area
R 2.5
Legal Disclaimer Notice
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Revision: 01-Jan-2021 1Document Number: 91000
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