TFBS6711-TR3 datasheet(5/14 Pages) VISHAY

Part #	TFBS6711-TR3

Description	Low Profile Fast Infrared Transceiver (FIR, 4 Mbit/s) for IrDA Applications

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Manufacturer	VISHAY [Vishay Siliconix]

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Document Number 84676

Rev. 1.3, 21-Feb-07

TFBS6711

Vishay Semiconductors

Optoelectronic Characteristics

Tamb = 25 °C, VCC = 2.4 V to 3.6 V unless otherwise noted.

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

Note: All timing data measured with 4 Mbit/s are measured using the IrDA® FIR transmission header. The data given here are valid 5 µs

after starting the preamble.

*) IrDA latency definition: Receiver Latency Allowance (milliseconds or microseconds) is the maximum time after a node ceases trans-

mitting before the node’s receiver recovers its specified sensitivity. During this period and also during the receiver start up time (after power

on or shut down) the RXD output may be in an undefined state.

**) IrDA sensitivity definition: Minimum Irradiance E

e In Angular Range, power per unit area. The receiver must meet the BER speci-

fication while the source is operating at the minimum intensity in angular range into the minimum half-angle range at the maximum Link

Length

***) Maximum Irradiance E

e In Angular Range, power per unit area. The optical delivered to the detector by a source operating at the

maximum intensity in angular range at Minimum Link Length must not cause receiver overdrive distortion and possible related link errors.

If placed at the Active Output Interface reference plane of the transmitter, the receiver must meet its bit error ratio (BER) specification.

For more definitions see the document “Symbols and Terminology” on the Vishay Website (http://www.vishay.com/docs/82512/82512.pdf).

Parameter

Test Conditions

Symbol

Min

Typ.

Max

Unit

Receiver

Minimum irradiance Ee in

angular range **)

9.6 kbit/s to 115.2 kbit/s

λ = 850 nm - 900 nm, V

CC = 2.4 V

Ee

50

(5)

80

(8)

mW/m2

(µW/cm2)

Minimum irradiance Ee in

angular range

MIR mode

1.152 Mbit/s

λ = 850 nm - 900 nm, V

CC = 2.4 V

Ee

100

(10)

mW/m2

(µW/cm2)

Minimum irradiance Ee in

angular range

FIR mode

4 Mbit/s

λ = 850 nm - 900 nm, V

CC = 2.4 V

Ee

120

(12)

200

(20)

mW/m2

(µW/cm2)

Maximum irradiance Ee in

angular range ***)

λ = 850 nm - 900 nm

Ee

5

(500)

kW/m2

(mW/cm2)

No detection receiver Input

Irradiance (fluorescent light

noise suppression)

Ee

4

(0.4)

mW/m2

(µW/cm2)

Rise time of output signal

10 % to 90 %, CL = 15 pF

tr (RXD)

10

50

ns

Fall time of output signal

90 % to 10 %, CL = 15 pF

tf (RXD)

10

50

ns

RXD pulse width of output

signal, 50 %, SIR mode

Input pulse length

1.4 µs < PWopt < 25 µs

tPW

1.4

1.8

2.6

µs

RXD pulse width of output

signal, 50 %, MIR mode

Input pulse length

PWopt = 217 ns, 1.152 Mbit/s

tPW

110

250

270

ns

RXD pulse width of output

signal, 50 %, FIR mode

Input pulse length

PWopt = 125 ns, 4 Mbit/s

tPW

110

140

ns

RXD pulse width of output

signal, 50 %, FIR mode

Input pulse length

PWopt = 250 ns, 4 Mbit/s

tPW

225

275

ns

RXD output jitter, leading edge

Input irradiance = 150 mW/m2,

4 Mbit/s

1.152 Mbit/s

≤ 115.2 kbit/s

20

40

350

ns

Receiver start up time

After completion of shutdown

programming sequence

Power on delay

500

µs

Latency*)

tL

100

µs

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