Telefunken TSOP1856PM1, TSOP1836PM1, TSOP1838PM1, TSOP1837PM1, TSOP1833PM1 Datasheet

TSOP18..PM1

Vishay Telefunken

Photo Modules for PCM Remote Control Systems

Available types for different carrier frequencies

Type	fo	Type	fo
TSOP1830PM1	30 kHz	TSOP1833PM1	33 kHz
TSOP1836PM1	36 kHz	TSOP1837PM1	36.7 kHz
TSOP1838PM1	38 kHz	TSOP1840PM1	40 kHz
TSOP1856PM1	56 kHz

Description

The TSOP18..PM1 ± 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 reliable function even in disturbed ambient and the protection against uncontrolled output pulses.

16115

Features

Photo detector and preamplifier in one package

Internal filter for PCM frequency

TTL and CMOS compatibility

Output active low

Improved shielding against electrical field disturbance

Suitable burst length ≥ 6 cycles/burst

Special Features

Small size package

Enhanced immunity against all kinds of disturbance light

No occurrence of disturbance pulses at the output

Short settling time after power on (<200 s)

Block Diagram

			3
Input		Control	VS
		Circuit
			30 k
			1
PIN			OUT
	AGC	Band	Demodu-
		Pass	lator
			2
			GND
			9612226

DocumentNumber 82048	www.vishay.com
Rev. 3, 10-Oct-00	1 (7)

TSOP18..PM1

Vishay Telefunken

Absolute Maximum Ratings

Tamb = 25_C
Parameter	Test Conditions	Symbol	Value	Unit
Supply Voltage	(Pin 3)	VS	±0.3...6.0	V
Supply Current	(Pin 3)	IS	5	mA
Output Voltage	(Pin 1)	VO	±0.3...6.0	V
Output Current	(Pin 1)	IO	5	mA
Junction Temperature		Tj	100	C
Storage Temperature Range		Tstg	±25...+85	C
Operating Temperature Range		Tamb	±25...+85	C
Power Consumption	(Tamb 85 C)	Ptot	50	mW
Soldering Temperature	t 10 s, 1 mm from case	Tsd	260	C

Basic Characteristics

Tamb = 25_C
Parameter	Test Conditions	Symbol	Min
Supply Current (Pin 3)	VS = 5 V, Ev = 0	ISD	0.9
	VS = 5 V, Ev = 40 klx, sunlight	ISH
Supply Voltage (Pin 3)		VS	4.5
Transmission Distance	Ev = 0, test signal see fig.6,	d
	IR diode TSAL6200, IF = 300 mA
Output Voltage Low (Pin 1)	IOSL = 0.5 mA,Ee = 0.7 mW/m2, f = fo	VOSL
Irradiance (30 ± 40 kHz)	Pulse width tolerance:	Ee min
	tpi ± 4/fo < tpo < tpi + 6/fo,
Irradiance (56 kHz)		Ee min
	test signal (see fig.6)
Irradiance		Ee max	30
Directivity	Angle of half transmission distance	ϕ1/2

Typ	Max	Unit
1.2	1.5	mA
1.2		mA
	5.5	V
35		m
	250	mV

0.3 0.5 mW/m2

0.4 0.7 mW/m2

W/m2

±45 deg

Application Circuit

		100 *)	+5V **)
	3	F *)
	4.7		>10 k
	TSOP18..PM1
TSAL62..			optional
	1		C
	2		GND
15905	*) recommended to suppress power supply disturbances

www.vishay.com	DocumentNumber 82048
2 (7)	Rev. 3, 10-Oct-00

TSOP18..PM1

Vishay Telefunken

Suitable Data Format

The circuit of the TSOP18..PM1 is designed in that way that unexpected output pulses due to noise or disturbance signals are avoided. A bandpassfilter, an integrator stage and an automatic gain control are used to suppress such disturbances.

The distinguishing mark between data signal ( not suppressed) and disturbance signal (supressed) are carrier frequency, burst length and Signal Gap Time (see diagram below).

The data signal should fullfill the following condition:

•Carrier frequency should be close to center frequency of the bandpass (e.g. 38kHz).

•Burst length should be 6 cycles/burst or longer.

•After each burst a gap time of at least 9 cycles is neccessary.

•The data format should not make a continuous signal transmission. There must be a Signal Gap Time (longer than 14ms) at least each 90ms

Some examples for suitable data format are:

NEC Code (repetitive pulse), NEC Code (repetitive data), Toshiba Micom Format, Sharp Code, RC5 Code, RECS±80 Code, R±2000 Code.

When a disturbance signal is applied to the TSOP18..PM1 it can still receive the data signal. However the sensitivity is reduced to that level that no unexpected pulses will occure.

Some examples for such disturbance signals which are suppressed by the TSOP18..PM1 are:

•DC light (e.g. from tungsten bulb or sunlight),

•Continuous signal at 38kHz or at any other frequency,

•Signals from fluorescent lamps.

•Continuous IR signal (e.g. 1ms burst, 2ms pause)

					Signal Gap Time
0	10	20	30	40	50	60	70	80	90	100
					time [ms]

Figure A: Data Signal (Output of IR Receiver) with a Signal Gap Time of 20ms

				Signal Gap Time
0	2	4	6	8	10	12	14	16	18	20
					time [ms]

Figure B: Disturbance Signal from Fluorescent Lamp with Signal Gap Time of 7ms

DocumentNumber 82048	www.vishay.com
Rev. 3, 10-Oct-00	3 (7)