Telefunken TSOP2856ZC1, TSOP2840ZC1, TSOP2838ZC1, TSOP2837ZC1, TSOP2833ZC1 Datasheet

TSOP28..ZC1

Vishay Telefunken

Photo Modules for PCM Remote Control Systems

Available types for different carrier frequencies

Type	fo	Type	fo
TSOP2830ZC1	30 kHz	TSOP2833ZC1	33 kHz
TSOP2836ZC1	36 kHz	TSOP2837ZC1	36.7 kHz
TSOP2838ZC1	38 kHz	TSOP2840ZC1	40 kHz
TSOP2856ZC1	56 kHz

Description

The TSOP28..ZC1 ± 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.

14 500

Features

DPhoto detector and preamplifier in one package

DInternal filter for PCM frequency

DTTL and CMOS compatibility

DOutput active low

DImproved shielding against electrical field disturbance

DSuitable burst length ≥ 6 cycles/burst

Special Features

DSmall size package

DEnhanced immunity against all kinds of disturbance light

DNo occurrence of disturbance pulses at the output

DShort settling time after power on (<200ms)

Block Diagram

			2
Input		Control	VS
		Circuit	30 kW
			1
PIN			OUT
	AGC	Band	Demodu-
		Pass	lator
			3
			GND
14318
Document Number 82072			www.vishay.de •FaxBack [phone]
Rev. 4, 13-Jun-00			1 (7)

TSOP28..ZC1

Vishay Telefunken

Absolute Maximum Ratings

Tamb = 25_C

Parameter	Test Conditions	Symbol	Value	Unit
Supply Voltage	(Pin 2)	VS	±0.3...6.0	V
Supply Current	(Pin 2)	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 x 85 °C)	Ptot	50	mW
Soldering Temperature	t x 10 s, 1 mm from case	Tsd	260	°C

Basic Characteristics

Tamb = 25_C

Parameter	Test Conditions		Symbol	Min	Typ	Max	Unit
Supply Current (Pin 2)	VS = 5 V, Ev = 0		ISD	0.9	1.2	1.5	mA
	VS = 5 V, Ev = 40 klx, sunlight		ISH		1.3		mA
Supply Voltage (Pin 2)			VS	4.5		5.5	V
Transmission Distance	Ev = 0, test signal see fig.6,		d		35		m
	IR diode TSAL6200, IF = 300 mA
Output Voltage Low (Pin 1)	IOL = 0.5 mA,		VOL			250	mV
	E = 0.7 mW/m2, f = f	o
	e
Irradiance (30 ± 40 kHz)	Pulse width tolerance:		E		0.3	0.5	mW/m2
	tpi ± 4/fo < tpo < tpi + 6/fo,		e min
	test signal see fig.6
Irradiance (56 kHz)	Pulse width tolerance:		E		0.4	0.7	mW/m2
	tpi ± 4/fo < tpo < tpi + 6/fo,		e min
	test signal see fig.6
Irradiance			E	30			W/m2
			e max
Directivity	Angle of half transmission distance		ϕ1/2		±45		deg

Application Circuit

		100 W *)	+5V
TSOP28..	2	4.7 mF *)
			>10 kW
TSAL62..			optional
	1		mC

3

GND

14319	*) recommended to suppress power supply disturbances

www.vishay.de •FaxBack [phone]	Document Number 82072
2 (7)	Rev. 4, 13-Jun-00

TSOP28..ZC1

Vishay Telefunken

Suitable Data Format

The circuit of the TSOP28..ZC1 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 10 cycles is neccessary.

•The data format should not make a continuous signal transmission. There must be a Signal Gap Time (longer than 15ms) at least each 90ms (see Figure A).

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 TSOP28..ZC1 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 TSOP28..ZC1 are:

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

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

•Signals from fluorescent lamps (see Figure B).

•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 (suppressed by TSOP28..)

Document Number 82072	www.vishay.de •FaxBack [phone]
Rev. 4, 13-Jun-00	3 (7)