TFBS4652

www.vishay.com

Vishay Semiconductors

Rev. 2.4, 21-Oct-2022

2

Document Number: 84671

For technical questions within your region: irdasupportAM@vishay.com, irdasupportAP@vishay.com, irdasupportEU@vishay.com

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000

PINOUT

TFBS4652, bottom view

weight 0.05 g

Definitions:

In

the

Vishay

transceiver

datasheets

the

following

nomenclature is used for defining the IrDA operating modes:

• SIR: 2.4 kbit/s to 115.2 kbit/s, equivalent to the basic serial

infrared standard with the physical layer version IrPhy 1.0

• MIR: 576 kbit/s to 1152 kbit/s

•FIR: 4 Mbit/s

• VFIR: 16 Mbit/s

MIR and FIR were implemented with IrPhy 1.1, followed by

IrPhy 1.2, adding the SIR Low Power Standard. IrPhy 1.3

extended the low power option to MIR and FIR and VFIR

was added with IrPhy 1.4. A new version of the standard in

any case obsoletes the former version.

PRODUCT SUMMARY

PART NUMBER

DATA RATE

(kbit/s)

DIMENSIONS

H x L x W

(mm x mm x mm)

LINK DISTANCE

(m)

OPERATING

VOLTAGE

(V)

IDLE SUPPLY

CURRENT

(mA)

TFBS4652

115.2

1.6 x 6.8 x 2.8

0 to

≥ 0.3

2.4 to 5.5

0.075

PARTS TABLE

PART

DESCRIPTION

QTY/REEL

TFBS4652-TR1

Oriented in carrier tape for side view surface mounting

1000 pcs

TFBS4652-TR3

Oriented in carrier tape for side view surface mounting

2500 pcs

TFBS4652-TT1

Oriented in carrier tape for top view surface mounting

1000 pcs

PIN DESCRIPTION

PIN NUMBER

SYMBOL

DESCRIPTION

I/O

ACTIVE

1IREDA

IRED anode, connected via a current limiting resistor to VCC2. A separate unregulated

power supply can be used.

2RXD

Receiver output. Normally high, goes low for a defined pulse duration with the rising

edge of the optical input signal. Output is a CMOS tri-state driver, which swings

between ground and Vlogic. Receiver echoes transmitter output.

OLow

3TXD

Transmitter data input. Setting this input above the threshold turns on the transmitter.

This input switches the IRED with the maximum transmit pulse width of about 100 μs.

IHigh

4SD

Shutdown. Logic low at this input enables the receiver, enables the transmitter, and

un-tri-states the receiver output. It must be driven high for shutting down the

transceiver.

IHigh

5Vlogic

Reference for the logic swing of the output and the input logic levels.

I

6VCC

Power supply, 2.4 V to 5.5 V. This pin provides power for the receiver and transmitter

drive section. Connect VCC1 via an optional filter.

7

GND

Ground

19284

Pin 1

Pin 7