TFDU7100-TR3 datasheet(6/14 Pages) VISHAY

Part #	TFDU7100-TR3

Description	Infrared Transceiver Module (FIR, 4 Mbit/s) for IrDA combined with Remote Control Receiver (36 kHz to 38 kHz Carrier)

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Manufacturer	VISHAY [Vishay Siliconix]

Direct Link	http://www.vishay.com

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Document Number 84773

Rev. 1.1, 27-Sep-06

TFDU7100

Vishay Semiconductors

Remote Control Receiver*)

Tested at 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

*) Timing parameters are equivalent to TSOP1238, see that datasheet.

**) The RC-RXD output is an open collector output, therefore a load resistor is mandatory.

Optoelectronic Characteristics

Transmitter

Tested at 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. Philips RC5/RC6® or RECS 80.

Parameter

Test Conditions

Symbol

Min

Typ.

Max

Unit

Minimum detection threshold

irradianceRC

λ = 950 nm

α = 0°, 15°, RC5/RC6, 36 kHz

EeRC

0.4

(0.04)

mW/m2

(µW/cm2)

Maximum detection threshold

irradiance

λ = 950 nm

α = 0°, 15°, 36 kHz to 38 kHz

EeRC

0.4

(0.04)

1mW/m2

(µW/cm2)

Minimum detection threshold

irradiance)

λ = 850 nm - 970 nm

EeRC

0.4

(0.04)

2mW/m2

(µW/cm2)

Maximum detection threshold

irradiance

λ = 850 nm - 900 nm

EeRCmax

30

W/m2

Output voltage low, RC-RXD

CLoad = 15 pF, RL = 10 kΩ

∗∗)

VOLRC

- 0.5

0.15 x VCC1

V

Output voltage high, RC-RXD

CLoad = 15 pF, RL = 10 kΩ

∗∗)

VHLRC

VCC1

V

Parameter

Test Conditions

Symbol

Min

Typ.

Max

Unit

IRED operating current

limitation

No external resistor for current

limitation*)

ID

450

550

650

mA

IRED operating current

limitation for low power FIR

mode

VCC2 = 3.3 V, RS = 18 Ω,

Ie 10 ≥ mW/sr

ID

90

mA

Output leakage IRED current

TXD = 0 V, 0 < VCC1 < 5.5 V

IIRED

- 1

1

µA

Output radiant intensity

α = 0°, 15°, full IrDA cone,

TXD = High, SD = Low, no external

resistor for current limitation*)

Ie

50

70

300

mW/sr

α = 0°

TXD = High, SD = Low, no external

resistor for current limitation*)

Ie

80

200

400

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

Peak - emission wavelength**)

λ

p

880

900

nm

Spectral bandwidth

Δλ

45

nm

Optical rise time, fall time

tropt, tfopt

10

40

ns

Optical output pulse duration

Input pulse width 1.63 µs,

115.2 kbit/s (SIR)

topt

1.6

1.63

1.75

µs

Input pulse width 217 ns,

1.152 Mbit/s

topt

207

217

227

ns

Input pulse width 125 ns,

4.0 Mbit/s

topt

117

125

133

ns

Input pulse width 250 ns,

4.0 Mbit/s

topt

242

250

258

ns

Input pulse width

0.1 µs, < tTXD < 100 µs

topt

tTXD

µs

Input pulse width

0.1 µs, tTXD ≥ 100 µs

topt

tTXD

100

µs

Optical overshoot

25

%

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