TFBS5700-TR3 datasheet(5/14 Pages) VISHAY

Part #	TFBS5700-TR3

Description	Fast Infrared Transceiver Module (MIR, 1.152 Mbit/s) for IrDA짰 and Remote Control Applications

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Manufacturer	VISHAY [Vishay Siliconix]

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Document Number 84670

Rev. 2.1, 25-Sep-06

TFBS5700

Vishay Semiconductors

Optoelectronic Characteristics

Receiver

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.

*) This parameter reflects the backlight test of the IrDA physical layer specification to guarantee immunity against light from fluorescent

lamps

**) IrDA sensitivity definition: Minimum Irradiance E

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

tion 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).

1) Some ENDECs are not able to decode short pulses as valid SIR pulses. Therefore this additional mode was added in TFBS5700.

TFBS5700 is set to the "short output pulse" as default after power on, also after recovering from the shutdown mode (SD must have been

longer active than 1.5 ms). For mode changing see the chapter "Programming".

Parameter

Test Conditions

Symbol

Min

Typ.

Max

Unit

Minimum irradiance Ee in

angular range **)

SIR mode

9.6 kbit/s to 115.2 kbit/s

λ = 850 nm to 900 nm

Ee

50

(5)

81

(8.1)

mW/m2

(µW/cm2)

Minimum irradiance Ee in

angular range **)

MIR mode

1.152 Mbit/s

λ = 850 nm to 900 nm

Ee

50

(5)

140

(14)

mW/m2

(µW/cm2)

Maximum irradiance Ee in

angular range ***)

λ = 850 nm to 900 nm

Ee

5

(500)

kW/m2

(mW/cm2)

Logic LOW receiver input

irradiance *)

According to IrDA appendix A1,

fluorescent light specification

Ee

4

(0.4)

mW/m2

(µW/cm2)

RXD pulse width of output

signal, dafault mode after power

on or reset

Input pulse length

TWopt > 200 ns

300

400

500

ns

Rise time of output signal

10 % to 90 %, CL = 15 pF

tr (RXD)

10

27

60

ns

Fall time of output signal

90 % to 10 %, CL = 15 pF

tf (RXD)

10

17

60

ns

SIR ENDEC compatility mode 1):

RXD pulse width of output signal

Input pulse length

TWopt > 200 ns, see chapter

“Programming”

tPW

1.7

2.0

2.9

µs

Stochastic jitter, leading edge

Input irradiance = 150 mW/m2,

≤ 1.152 Mbit/s, 576 kbit/s

70

ns

Stochastic jitter, leading edge

Input irradiance = 150 mW/m2,

≤ 115.2 kbit/s

350

ns

Standby/shutdown delay

after shutdown active or (SD

low to high transition)

0.6

1.5

ms

Shutdown active time window for

programming

During this time the pulse

duration of the output can be

programmed to the application

mode. see chapter

“Programming”

600

µs

Receiver start up time,

Power on delay

Shutdown recovery delay

After shutdown inactive (SD

high to low transition) and

power-on

250

µs

Latency

tL

50

200

µs

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