TSOP942.., TSOP944..
www.vishay.com
Vishay Semiconductors
IR Receiver Modules for Remote Control Systems
FEATURES
• Improved dark sensitivity
• Improved immunity against optical noise
• Very low supply current
•
•
•
•
•
3
16672
1
2
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
DESIGN SUPPORT TOOLS
Models
Available
click logo to get started
MECHANICAL DATA
1 = OUT, 2 = GND, 3 = V
S
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 TSOP942.. and TSOP944.., series devices are designed to receive long burst codes (10 or more carrier cycles per burst).
The third digit designates the AGC level (AGC2 or AGC4) 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. AGC2 provides basic noise
suppression and AGC4 provides enhanced 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.
PARTS TABLE
AGC
30 kHz
33 kHz
Carrier frequency
36 kHz
38 kHz
40 kHz
56 kHz
Package
Pinning
Dimensions (mm)
Mounting
Application
Best choice for
(1)
BASIC NOISE SUPPRESSION
(AGC2)
TSOP94230
TSOP94233
TSOP94236
TSOP94238
TSOP94240
(11)
TSOP94256
(1)
ENHANCED NOISE SUPPRESSION
(AGC4)
TSOP94430
TSOP94433
TSOP94436
(6)
TSOP94438
(9)
TSOP94440
TSOP94456
(7)(8)
Mold
1 = OUT, 2 = GND, 3 = V
S
6.0 W x 6.95 H x 5.6 D
Leaded
Remote control
Cisco
Mitsubishi
(7)
RCA
(8)
r-step
(2)
(3)
NEC
(4)
Panasonic
(5)
RC-5
(6)
RC-6
(9)
Sejin 4PPM
(10)
Sharp
(11)
Sony
Notes
• 30 kHz and 33 kHz only available on written request
• See datasheet for TSOP946.. for preferred devices for
(2)(3)(4)(5)(10)
Rev. 1.1, 04-Sep-2018
1
Document Number: 82834
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
TSOP942.., TSOP944..
www.vishay.com
BLOCK DIAGRAM
16833-13
17170-12
Vishay Semiconductors
APPLICATION CIRCUIT
R
1
IR receiver
V
S
Circuit
C
1
OUT
GND
2
3
30 kΩ
1
Input
AGC
Band
pass
Demo-
dulator
Transmitter
with
TSALxxxx
+ V
S
μC
V
O
GND
PIN
Control circuit
R
1
and C
1
recommended to reduce
supply
ripple for V
S
< 2.2 V
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Supply voltage
Supply current
Output voltage
Output current
Junction temperature
Storage temperature range
Operating temperature range
Power consumption
Soldering temperature
T
amb
85 °C
t
10 s, 1 mm from case
TEST CONDITION
SYMBOL
V
S
I
S
V
O
I
O
T
j
T
stg
T
amb
P
tot
T
sd
VALUE
-0.3 to +3.6
3
-0.3 to (V
S
+ 0.3)
5
100
-25 to +85
-25 to +85
10
260
UNIT
V
mA
V
mA
°C
°C
°C
mW
°C
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
ELECTRICAL AND OPTICAL CHARACTERISTICS
(T
amb
= 25 °C, unless otherwise specified)
PARAMETER
Supply current
Supply voltage
Transmission distance
Output voltage low
Minimum irradiance
Maximum irradiance
Directivity
E
v
= 0, test signal see Fig. 1,
IR diode TSAL6200, I
F
= 50 mA
I
OSL
= 0.5 mA, E
e
= 0.7 mW/m
2
,
test signal see Fig. 1
Test signal: NEC code
t
pi
- 4/f
0
< t
po
< t
pi
+ 4/f
0
,
test signal see Fig. 1
Angle of half transmission
distance
TEST CONDITION
E
v
= 0, V
S
= 3.3 V
E
v
= 40 klx, sunlight
SYMBOL
I
SD
I
SH
V
S
d
V
OSL
E
e min.
E
e max.
1/2
MIN.
0.25
-
2.0
-
-
-
30
-
TYP.
0.37
0.50
-
32
-
0.07
-
± 45
MAX.
0.45
-
3.6
-
100
0.15
-
-
UNIT
mA
mA
V
m
mV
mW/m
2
W/m
2
deg
Rev. 1.1, 04-Sep-2018
2
Document Number: 82834
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
TSOP942.., TSOP944..
www.vishay.com
TYPICAL CHARACTERISTICS
(T
amb
= 25 °C, unless otherwise specified)
Axis Title
Vishay Semiconductors
E
e
Optical Test
Signal
(IR diode TSAL6200, 30 pulses, f = f
0
, T = 10 ms)
2nd line
t
on
, t
off
- Output Pulse Width (ms)
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
λ = 950 nm,
optical test signal, Fig. 3
t
on
10000
t
t
pi (1)
T
(1)
AGC4: t
pi
≥ 10/f
0
, AGC2: t
pi
≥ 16/f
0
V
O
V
OH
V
OL
1000
1st line
2nd line
100
100
1000
10
10 000 100 000
10000
1000
1st line
2nd line
100
f = f
0
± 5 %
∆f (3 dB) = f
0
/10
t
off
Output
Signal
(2)
AGC4: 7/f
0
< t
d
< 13/f
0
AGC2: 11/f
0
< t
d
< 17/f
0
(3)
16110-10
t
pi
- 4/f
0
< t
po
< t
pi
+ 4/f
0
t
po (3)
t
t
d (2)
0.1
1
10
E
e
- Irradiance (mW/m
2
)
Fig. 1 - Output Delay and Pulse-Width
Fig. 4 - Pulse-Width vs. Irradiance in Dark Ambient
Axis Title
0.90
Output pulse width
Axis Title
10000
2nd line
E
e min.
/E
e
- Relative Responsivity
1.2
1.0
0.8
0.6
0.4
0.2
0
0.7
0.9
1.1
1.3
f/f
0
- Relative Frequency
2nd line
t
po
- Output Pulse Width (ms)
0.85
0.80
0.75
0.70
0.65
0.60
0.1
10
1000
E
e
- Irradiance (mW/m
2
)
λ = 950 nm,
optical test signal, Fig. 1
1000
1st line
2nd line
100
10
100 000
Input burst length
10
Fig. 2 - Pulse-Width vs. Irradiance in Dark Ambient
Fig. 5 - Frequency Dependence of Responsivity
E
e
Optical Test Signal
2nd line
E
e min.
- Threshold Irradiance (mW/m
2
)
Axis Title
4
Correlation with ambient light sources:
10 W/m
2
= 1.4 klx (std. ilum. A, T = 2855 K)
10 W/m
2
= 8.2 klx (daylight, T = 5900 K)
10000
3
Wavelength of ambient
illumination: λ = 950 nm
t = 60 ms
V
O
V
OH
V
OL
t
on
Fig. 3 - Test Signal
2
100
1
Output Signal,
(see Fig. 4)
94 8134
t
off
t
0
0.01
10
0.1
1
10
100
E
e
- Ambient DC Irradiance (W/m
2
)
Fig. 6 - Sensitivity in Bright Ambient
Rev. 1.1, 04-Sep-2018
3
Document Number: 82834
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
1st line
2nd line
600 µs
600 µs
t
1000
TSOP942.., TSOP944..
www.vishay.com
Vishay Semiconductors
Axis Title
Axis Title
1.0
2nd line
E
e min.
- Threshold Irradiance (mW/m
2
)
10000
2nd line
S(λ)
rel.
- Relative Spectral Sensitivity
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
750
850
950
1050
λ - Wavelength (nm)
10000
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
10
1
10
100
1000
∆V
S RMS
- AC Voltage on DC Supply Voltage (mV)
100
f = f
0
f = 30 kHz
f = 10 kHz
f = 100 Hz
1000
1st line
2nd line
1000
1st line
2nd line
100
10
1150
Axis
0°
Title
10°
20°
30°
40°
2nd line
2nd line
1st line
2nd line
100
10
1.0
1.5
2.0
2.5
3.0
3.5
4.0
V
S
- Supply Voltage (V)
50°
60°
70°
80°
0.6
0.4
0.2
0
0.2
0.4
0.6
d
rel.
- Relative Transmission Distance
Fig. 7 - Sensitivity vs. Supply Voltage Disturbances
Fig. 10 - Relative Spectral Sensitivity vs. Wavelength
Axis Title
0.9
0.8
2nd line
Maximum Envelope Duty Cycle
0.7
0.6
0.5
0.4
0.3
TSOP944..
TSOP942..
f = 38 kHz, E
e
= 2 mW/m
2
10000
1000
1st line
2nd line
2nd line
2nd line
1.0
0.9
0.8
100
0.7
0.2
0.1
0
0
20
40
60
80
100
120
Burst Length (Number of Cycles/Burst)
10
Fig. 8 - Max. Envelope Duty Cycle vs. Burst Length
Fig. 11 - Directivity
Axis Title
0.30
2nd line
E
e min.
- Threshold Irradiance (mW/m
2
)
0.25
0.20
0.15
0.10
0.05
0
-30
-10
10
30
50
70
90
T
amb
- Ambient Temperature (°C)
10
100
1000
1st line
2nd line
10000
2nd line
E
e min.
- Threshold Irradiance (mW/m
2
)
0.25
Axis Title
10000
0.20
1000
0.15
0.10
0.05
0
Fig. 9 - Sensitivity vs. Ambient Temperature
Fig. 12 - Sensitivity vs. Supply Voltage
Rev. 1.1, 04-Sep-2018
4
Document Number: 82834
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
TSOP942.., TSOP944..
www.vishay.com
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)
40
16920
Vishay Semiconductors
Axis Title
7
6
2nd line
IR Signal Amplitude
5
4
3
2
1
0
0
5
10
Time (ms)
15
20
10
100
10000
1000
1st line
2nd line
Fig. 13 - IR Emission from Fluorescent Lamp
With Low Modulation
Axis Title
10000
20
2nd line
IR Signal Amplitude
1000
1st line
2nd line
100
-40
10
0
16921
0
-20
-60
5
10
Time (ms)
15
20
Fig. 14 - IR Emission from Fluorescent Lamp
With High Modulation
TSOP942..
Minimum burst length
After each burst of length
a minimum gap time is required of
For bursts greater than
a minimum gap time in the data stream is needed of
Maximum number of continuous short bursts/second
RC-5 code
RC-6 code
NEC code
r-step code 56 kHz
Sony code
RCA 56 kHz code
Mitsubishi code 38 kHz
Suppression of interference from fluorescent lamps
16 cycles/burst
16 to 70 cycles
16 cycles
70 cycles
> 6 x burst length
1000
Yes
Yes
Yes
No
Preferred
Yes
Yes
Fig. 13
TSOP944..
10 cycles/burst
6 to 40 cycles
12 cycles
40 cycles
> 10 x burst length
1800
Yes
Preferred
Yes
Preferred
No
Preferred
Yes
Fig. 13 and Fig. 14
Note
• For data formats with short bursts please see the datasheet for TSOP943.., TSOP945..
Rev. 1.1, 04-Sep-2018
5
Document Number: 82834
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
