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Электронный компонент: TSOP6938

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TSOP69..
Document Number 84687
Rev. 1.0, 01-Mar-05
Vishay Semiconductors
www.vishay.com
1
16797
1
2
3
4
IR Receiver Modules for Remote Control Systems
Description
The TSOP69.. - series are 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. The main benefit is the
operation with a high envelope duty cycle datasignal
and the good immunity against disturbance signals
with spike characteristic as well as all continuous dis-
turbance signals.
Features
Photo detector and preamplifier in one
package
Internal filter for PCM frequency
Improved shielding against electrical
field
disturbance
TTL and CMOS compatibility
Output active low
Low power consumption
High immunity against ambient light
Special Features
Enhanced data rate of 4000 bit/s
Operation with short bursts possible
(
6 cycles/burst)
Taping available for topview and sideview assem-
bly.
Mechanical Data
Pinning:
1 = GND, 2 = GND, 3 = V
S
, 4 = OUT
Parts Table
Block Diagram
Application Circuit
Part
Carrier Frequency
TSOP6930
30 kHz
TSOP6933
33 kHz
TSOP6936
36 kHz
TSOP6937
36.7 kHz
TSOP6938
38 kHz
TSOP6940
40 kHz
TSOP6956
56 kHz
25 k
3
1;2
V
S
OUT
Demo-
GND
Pass
AGC
Input
PIN
Band
dulator
Control Circuit
4
C
1
=
4.7 F
TSOPxxxx
OUT
GND
Circuit
C
R
1
= 100
+V
S
GND
Transmitter
with
TSALxxxx
V
S
R
1
+ C
1
recommended to suppress power supply
disturbances.
V
O
The output voltage should not be hold continuously at
a voltage below V
O =
3.3 V by the external circuit.
16842
e3
www.vishay.com
2
Document Number 84687
Rev. 1.0, 01-Mar-05
TSOP69..
Vishay Semiconductors
Absolute Maximum Ratings
Absolute Maximum Ratings
T
amb
= 25 C, unless otherwise specified
Electrical and Optical Characteristics
T
amb
= 25 C, unless otherwise specified
Parameter
Test condition
Symbol
Value
Unit
Supply Voltage
Pin 3
V
S
- 0.3 to 6.0
V
Supply Current
Pin 3
I
S
5
mA
Output Voltage
Pin 4
V
O
- 0.3 to 6.0
V
Output Current
Pin 4
I
O
15
mA
Junction Temperature
T
j
100
C
Storage Temperature Range
T
stg
- 40 to + 100
C
Operating Temperature Range
T
amb
- 25 to + 85
C
Power Consumption
T
amb
85 C
P
tot
50
mW
Parameter
Test condition
Symbol
Min
Typ.
Max
Unit
Supply Current
V
S
= 5 V, E
v
= 0
I
SD
0.8
1.2
1.5
mA
V
S
= 5 V,
E
v
= 40 klx, sunlight
I
SH
1.5
mA
Supply Voltage
V
S
4.5
5.5
V
Transmission Distance
E
v
= 0, test signal see fig.1,
IR diode TSAL6200,
I
F
= 400 mA
d
35
m
Output Voltage Low (Pin 4)
I
OSL
= 0.5 mA,
E
e
= 0.7 mW/m
2
,
test signal see fig. 1
V
OSL
250
mV
Minimum Irradiance
(30 - 40 kHz)
Pulse width tolerance:
t
pi
- 5/f
o
< t
po
< t
pi
+ 6/f
o
,
test signal see fig.3
E
e min
0.35
0.5
mW/m
2
Minimum Irradiance (56 kHz)
Pulse width tolerance:
t
pi
- 5/f
o
< t
po
< t
pi
+ 6/f
o
,
test signal see fig.3
E
e min
0.4
0.6
mW/m
2
Maximum Irradiance
t
pi
- 5/f
o
< t
po
< t
pi
+ 6/f
o
,
test signal see fig. 1
E
e max
30
W/m
2
Directivity
Angle of half transmission
distance
1/2
50
deg
VISHAY
TSOP69..
Document Number 84687
Rev. 1.0, 01-Mar-05
Vishay Semiconductors
www.vishay.com
3
Typical Characteristics (Tamb = 25
C unless otherwise specified)
Figure 1. Output Function
Figure 2. Pulse Length and Sensitivity in Dark Ambient
Figure 3. Output Function
E
e
T
t
pi
*)
t
V
O
V
OH
V
OL
t
po
2 )
t
14337
Optical Test Signal
(IR diode TSAL6200, I
F
=0.4 A, N=6 pulses, f=f
0
, T=10 ms)
Output Signal
t
d
1 )
1 )
3/f
0
< t
d
< 9/f
0
2 )
t
pi
4/f
0
< t
po
< t
pi
+ 6/f
0
*) t
pi
w 6/fo is recommended for optimal function
t Output Pulse Width ( ms )
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.1
1.0
10.0
100.0 1000.010000.0
E
e
Irradiance ( mW/m
2
)
16907
po
Input Burst Duration
l = 950 nm,
optical test signal, fig.1
Output Pulse
E
e
t
V
O
V
OH
V
OL
t
600
ms
600
ms
T = 60 ms
T
on
T
off
94 8134
Optical Test Signal
Output Signal, ( see Fig.4 )
Figure 4. Output Pulse Diagram
Figure 5. Frequency Dependence of Responsivity
Figure 6. Sensitivity in Bright Ambient
T
,T
Output Pulse Width ( ms )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
0.1
1.0
10.0
100.0 1000.010000.0
E
e
Irradiance ( mW/m
2
)
16910
Toff
l = 950 nm,
optical test signal, fig.3
Ton
on
off
0.0
0.2
0.4
0.6
0.8
1.0
1.2
0.7
0.9
1.1
1.3
f/f
0
Relative Frequency
16926
f = f
0
"5%
Df ( 3dB ) = f
0
/7
E / E Rel. Responsivity
e min
e
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
0.01
0.10
1.00
10.00
100.00
E Ambient DC Irradiance (W/m
2
)
16911
Correlation with ambient light sources:
10W/m
2
^1.4klx (Std.illum.A,T=2855K)
10W/m
2
^8.2klx (Daylight,T=5900K)
Ambient,
l = 950 nm
E
Threshold Irradiance ( mW/m )
e min
2
www.vishay.com
4
Document Number 84687
Rev. 1.0, 01-Mar-05
TSOP69..
Vishay Semiconductors
Figure 7. Sensitivity vs. Supply Voltage Disturbances
Figure 8. Sensitivity vs. Electric Field Disturbances
Figure 9. Max. Envelope Duty Cycle vs. Burstlength
0.0
0.5
1.0
1.5
2.0
0.1
1.0
10.0
100.0
1000.0
DV
sRMS
AC Voltage on DC Supply Voltage (mV)
16912
f = f
o
f = 10 kHz
E
Threshold Irradiance ( mW/m )
e min
2
f = 1 kHz
f = 100 Hz
E
Threshold Irradiance ( mW/m )
0.0
0.4
0.8
1.2
1.6
0.0
0.4
0.8
1.2
2.0
E Field Strength of Disturbance ( kV/m )
2.0
94 8147
1.6
e min
2
f(E) = f
0
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
0
20 40 60 80 100 120 140 160 180 200
Burst Length ( number of cycles / burst )
18658
f = 38 kHz, E
e
= 2 mW/m
2
Max. Envelope Duty Cycle
Figure 10. Sensitivity vs. Ambient Temperature
Figure 11. Relative Spectral Sensitivity vs. Wavelength
Figure 12. Directivity
0.0
0.1
0.2
0.3
0.4
0.5
0.6
30 15
0
15
30
45
60
75
90
T
amb
Ambient Temperature ( C )
16918
Sensitivity in dark ambient
E
Threshold Irradiance ( mW/m )
e min
2
0.0
0.2
0.4
0.6
0.8
1.0
1.2
750
850
950
1050
1150
- Wavelength ( nm )
16919
S(
)
-
Relative
Spectral
Sensitivity
rel
16801
0.4
0.2
0
0.2
0.4
0.6
0.6
0.9
0
30
10
20
40
50
60
70
80
1.0
0.8
0.7
d
rel
- Relative Transmission Distance
VISHAY
TSOP69..
Document Number 84687
Rev. 1.0, 01-Mar-05
Vishay Semiconductors
www.vishay.com
5
Suitable Data Format
The circuit of the TSOP69.. is designed in that way
that unexpected output pulses due to noise or distur-
bance signals are avoided. A bandpass filter, a limiter
stage, an integrator stage and an automatic gain con-
trol are used to suppress such disturbances.
The distinguishing mark between data signal and dis-
turbance signal are carrier frequency, burst length
and duty cycle.
The data signal should fulfill the following conditions:
Carrier frequency should be close to center fre-
quency of the bandpass (e.g. 38 kHz).
Burst length should be 6 cycles/burst or longer.
After each burst which is between 6 cycles and 120
cycles a gap time of at least 10 cycles is necessary.
For each burst which is longer than 3.2 ms a corre-
sponding gap time is necessary at some time in the
data stream. This gap time should have at least same
length as the burst.
Up to 2200 short bursts per second can be received
continuously.
Some examples for suitable data format are: NEC
Code, Toshiba Micom Format, Sharp Code, RC5
Code, RC6 Code, RCMM Code, R-2000 Code,
RECS-80 Code.
When a disturbance signal is applied to the TSOP69..
it can still receive the data signal. However the sensi-
tivity is reduced to that level that no unexpected
pulses will occur.
Some examples for such disturbance signals which
are suppressed by the TSOP69.. are:
DC light (e.g. from tungsten bulb or sunlight)
Continuous signal at 38 kHz or at any other fre-
quency
Signals from fluorescent lamps with electronic bal-
lasts with various kinds of modulation
(see examples in Figure 13 and Figure 14).
Figure 13. IR Signal from Fluorescent Lamp with low Modulation
Figure 14. IR Signal from a Fluorescent Lamp with Spikes
0
5
10
15
20
Time ( ms )
16920
IR Signal
IR Signal from fluorescent
lamp with low modulation
Time ( ms )
18659
IR
Signal
0
1
2
3
4
5
6
7
8
9
0
2
4
6
8
10