TFDU4300-TT1 datasheet(7/15 Pages) VISHAY

Part #	TFDU4300-TT1

Description	Infrared Transceiver Module (SIR, 115.2 kbit/s)

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Manufacturer	VISHAY [Vishay Siliconix]

Direct Link	http://www.vishay.com

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VISHAY

TFDU4300

Document Number 82614

Rev. 1.4, 26-Jan-04

Vishay Semiconductors

www.vishay.com

7

Transmitter

Tested @ Tamb = 25 °C, VCC1 = VCC2 = 2.7 V to 5.5 V unless otherwise noted.

Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing.

*) Using an external current limiting resistor is allowed and recommended to reduce IRED intensity and operating current when current

reduction is intended to operate at the IrDA low power conditions. E.g. for VCC2 = 3.3 V a current limiting resistor of RS = 56 Ω

will allow a power minimized operation at IrDA low power conditions.

**) Note: Due to this wavelength restriction compared to the IrDA spec of 850 nm to 900 nm the transmitter is able to operate as source for

the standard Remote Control applications with codes as e.g. Phillips RC5/RC6® or RECS 80.

Parameter

Test Conditions

Symbol

Min

Typ.

Max

Unit

IRED operating current

limitation

No external resistor for current

limitation*)

ID

250

300

350

mA

Forward voltage of built-in IRED If = 300 mA

Vf

1.4

1.8

1.9

V

Output leakage IRED current

Txd = 0 V, 0 < VCC1 < 5.5 V

IIRED

- 1

1

µA

Output radiant intensity

α = 0 °, 15 °

Txd = High, SD = Low

Ie

30

65

mW/sr

VCC1 = 5.0 V, α = 0 °, 15 °

Txd = Low or SD = High

(Receiver is inactive as long as

SD = High)

Ie

0.04

mW/sr

Output radiant intensity, angle of

half intensity

α

± 24

°

Peak - emission wavelength**)

λp

880

900

nm

Spectral bandwidth

∆λ

45

nm

Optical rise time, fall time

tropt, tfopt

10

100

ns

Optical output pulse duration

input pulse width 1.63

µs,

115.2 kbit/s

topt

1.6

1.63

1.8

µs

input pulse width tTxd < 20 µstopt

tTxd

tTxd + 0.15

µs

input pulse width tTxd ≥ 20 µstopt

20

300

µs

Optical overshoot

25

%

Similar Part No. - TFDU4300-TT1

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TFDU4300-TT1 Datasheet(PDF) 7 Page - Vishay Siliconix

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