Datasheet TFBS6614 Datasheet (VISHAY)

VISHAY

18088

TFBS6614

Vishay Semiconductors

Lowest Profile 4 Mbits/s (FIR) Infrared Transceiver Module

Description

The Vishay TFBS6614 is the lowest profile (2.7 mm)
4 Mbit/s Infrared Data Transceiver module available.
A PIN photodiode, an infrared emitter (IRED) and a
low-power CMOS control IC are integrated in a single
package that provides a total front-end solution.

V
directly to TxD, RxD and SD/Mode logic signals of the
transceiver hence eliminating the need for costly sig­nal level converter and reducing power consumption.

The TxD-echo function is enabled for internal self­test. During transmission the TxD signals are echoed
at RxD output to perform the internal self-test.

- allows a low-voltage controller to connect

LOGIC

The Shut Down (SD) feature cuts current consump­tion to less than 10 nA.

Features

• Smallest FIR Transceiver available:
H 2.7 mm x W 3.33 mm x L 7.98 mm

• 1.0 m Link distance

• Battery & Power Management Features:
> Receive - 2 mA Typical
> Shutdown - 10 nA Typical
> Independent LED Anode Power Supply
> Wide Voltage Range 2.7 V - 5.5 V
> Power Up Latency < 100 µs
> High V

• The TxD-Echo function is enabled

•V

LOGIC

voltage

• Shutdown Tri-States Receiver Output and Dis­ables TxD allowing Bus Interfacing

• High Immunity to Fluorescent Light Noise and AC
Field. No external shield required

• High DC Ambient Rejection - Operates Outdoors

• Receiver Latency Less than 100 µs

• Directly Interfaces with Various Super I/O and
Controller Devices

Noise Rejection > 100 m VPP

CC

(1.5 V - 5.5 V) - Independent Digital supply

Applications

PDAs
Mobile Phones
Notebook Computers, Desktop PCs
Digital Still and Video Cameras
External Infrared Adapters (Dongles)
Diagnostics Systems
Medical and Industrial Data Collection Devices
GPS

Document Number 82611

Rev. 1.4, 28-Oct-03

www.vishay.com

1

TFBS6614

Vishay Semiconductors

Parts Table

Part Description Qty / Reel

TFBS6614-TR3 Oriented in carrier tape for side view surface mounting 2500 pcs

Functional Block Diagram

VISHAY

18072

Pinout

TFBS6614
weight 80 mg

SD/Mode

TxD

Amp

Mode &
Power
Control

V

CC1

Comp

GND

V

Driver

logic

Driver

V

RxD

CC2

LEDA

LEDC

18304

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1234567

Document Number 82611

Rev. 1.4, 28-Oct-03

VISHAY

TFBS6614

Vishay Semiconductors

Absolute Maximum Ratings

Reference Point Ground, Pin 8, unless otherwise noted

Parameter Test Conditions Symbol Min Ty p. Max Unit

Analog Supply Voltage Range,
all states

Digital Supply Voltage Range V

Input Current During Transmit, VCC = 5.0 V,

TxD = V

DD

Output Sink Current, RxD 25.0 mA

Peak IRED Current V

Average IRED Current V

Power Dissipation 500 mW

Junction Temperature 125 °C

Ambient Temperature Range
(Operating)

Storage Temperature Range T

Soldering Temperature t = 20 s @ 215 °C 215 240 °C

Transmitter Data and Shutdown
Input Voltage

Receiver Data Output Voltage RxD - 0.5 VDD +

= 2.7 V, TxD = VDD, 125 ns

CC1

pulse

= 2.7 V 125 mA

CC2

V

CC1

DD

T

A

S

V

, V

TxD

SD

- 0.5 + 6.0 V

- 0.5 + 6.0 V

10.0 mA

650 mA

- 25 + 85 °C

- 25 + 85 °C

- 0.5 VDD +

0.5

0.5

V

V

Optoelectronic Characteristics

Receiver

TA = 25 °C, VCC = 2.7 V to 5.5 V unless othervise noted

Parameter Test Conditions Symbol Min Ty p. Max Unit

Minimum Detection Threshold
Irradiance

Analog Supply Voltage Range Specified operation V

Digital Supply Voltage Range Specified operation V

Maximum LED Anode Voltage V

ICC Shut Down Current VCC = 5 V I

ICC Idle Current VCC = 5 V I

4.0 Mbit/s,
l = 850 nm to 900 nm

Transmitter

TA = 25 °C, VCC = 2.7 V to 5.5 V unless othervise noted

Parameter Test Conditions Symbol Min Ty p. Max Unit

Output Radiant Intensity α = 0 °C, 15 °C,

TxD = High, SD = Low

E

e

CC

DD

LEDA

CC1

CC2

I

e

100

2.7 5.5 V

1.5 5.5 V

VCC + 4 V

0.01 2.0 µA

1.6 mA

110 mW/sr

mW/m

2

Document Number 82611

Rev. 1.4, 28-Oct-03

www.vishay.com

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TFBS6614

Vishay Semiconductors

VISHAY

Mode Switching

Upon power-up the TFBS6614 module initializes in
the SIR (9.6 kbit/s to 115.2 kbit/s) mode.The module
can be switched to higher bandwidth and vice versa
by using the sequence described bellow:

SD/Mode 50%

t

s

TxD 50% 50%

18073

Figure 1. Mode Switching Timing Diagram

t

h

High: FIR

Low:
SIR/ MIR

Setting to the High Bandwidth Mode (0.576 Mbit/s to 4 Mbit/s)

1. Set SD/ Mode input to logic "High".

2. Set TxD input to logic "High". Wait ts ≥ 200 ns.

3. Set SD/ Mode to logic "Low" (the negative edge
latches state of TxD, which determines data rate set­ting).

4. After waiting th ≥ 200 ns TxD can be set to logic
"Low". The hold time of TxD is limited by the maxi­mum allowed pulse width.

TxD is now enabled as normal TxD input for the high
bandwidth mode.

Setting to the Lower Bandwidth Mode (9.6 kbit/s to 115.2 kbit/s)

1. Set SD/ Mode input to logic "High".

2. Set TxD input to logic "Low". Wait ts ≥ 200 ns.

3. Set SD/ Mode to logic "Low" (the negative edge
latches state of TxD, which determines data rate set­ting).

4. After waiting th ≥ 200 ns TxD can be set to logic
"Low". The hold time of TxD is limited by the maxi­mum allowed pulse width.

TxD is now enabled as normal TxD input for the lower
bandwidth mode.

Recommended Solder Profile

18075

260

240

220

200

180

160

140

120

100

Temperature /°C

80

60

40

20

0

0 50 100 150 200 250 300 350

2...4°C/s

240°C max.

160°C max.

120 s...180 s

Time/s

10 s max. @ 230°C

2-4°C/s

90 s max.

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Document Number 82611

Rev. 1.4, 28-Oct-03

VISHAY

Recommended Circuits

TFBS6614

Vishay Semiconductors

18076

VCC=3.3 V

VDD=1.8 V

IR Controller

IRMODE

Circuit Diagram with separate V and V

(I/O voltage follows V voltage swing)

Vdd

DD

R2

3.3Ω

CC

IRTX

IRRX

R1

47Ω

C3

GND

C1

4.7 µF

C2

0.1µF

4.7µF

C4

0.1 µFC50.1 µF

LOGIC

TFBS6614

1 LEDA

2LEDC

3 TxD

4 RxD

5SD

6 Vcc

7 Vlogic

8 GND

18077

Circuit Diagram with a Common Power Supply for V and V

VCC= 3.3 V

IR Controller

IRMODE

(I/O voltage follows V voltage swing)

Vdd

IRTX

IRRX

GND

C1

4.7µFC20.1mΦC34.7µF

CC

R2

3.3Ω

R1

47Ω

C4

0.1µF

CC

TFBS6614

1LEDA

2LEDC

3 TxD

4 RxD

5SD

6 Vcc

7 Vlogic

8 GND

LOGIC

Document Number 82611

Rev. 1.4, 28-Oct-03

www.vishay.com

5

TFBS6614

Vishay Semiconductors

Package Dimensions in mm

VISHAY

www.vishay.com

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18074

Document Number 82611

Rev. 1.4, 28-Oct-03

VISHAY

Reel Dimensions

TFBS6614

Vishay Semiconductors

W

1

Reel Hub

W

2

Tape Width A max. N W1 min. W2 max. W3 min. W3 max.

mm mm mm mm mm mm mm

24 330 60 24.4 30.4 23.9 27.4

14017

Document Number 82611

Rev. 1.4, 28-Oct-03

www.vishay.com

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TFBS6614

Vishay Semiconductors

Tape Dimensions in mm

VISHAY

18297

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Document Number 82611

Rev. 1.4, 28-Oct-03

VISHAY

TFBS6614

Vishay Semiconductors

Ozone Depleting Substances Policy Statement

It is the policy of Vishay Semiconductor GmbH to

1. Meet all present and future national and international statutory requirements.

2. Regularly and continuously improve the performance of our products, processes, distribution and
operatingsystems with respect to their impact on the health and safety of our employees and the public, as
well as their impact on the environment.

It is particular concern to control or eliminate releases of those substances into the atmosphere which are
known as ozone depleting substances (ODSs).

The Montreal Protocol (1987) and its London Amendments (1990) intend to severely restrict the use of ODSs
and forbid their use within the next ten years. Various national and international initiatives are pressing for an
earlier ban on these substances.

Vishay Semiconductor GmbH has been able to use its policy of continuous improvements to eliminate the
use of ODSs listed in the following documents.

1. Annex A, B and list of transitional substances of the Montreal Protocol and the London Amendments
respectively

2. Class I and II ozone depleting substances in the Clean Air Act Amendments of 1990 by the Environmental
Protection Agency (EPA) in the USA

3. Council Decision 88/540/EEC and 91/690/EEC Annex A, B and C (transitional substances) respectively.

Vishay Semiconductor GmbH can certify that our semiconductors are not manufactured with ozone depleting
substances and do not contain such substances.

We reserve the right to make changes to improve technical design

and may do so without further notice.

Parameters can vary in different applications. All operating parameters must be validated for each

customer application by the customer. Should the buyer use Vishay Semiconductors products for any

unintended or unauthorized application, the buyer shall indemnify Vishay Semiconductors against all

claims, costs, damages, and expenses, arising out of, directly or indirectly, any claim of personal

damage, injury or death associated with such unintended or unauthorized use.

Vishay Semiconductor GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany

Telephone: [phone], Fax number: 49 (0)7131 67 2423

Document Number 82611

Rev. 1.4, 28-Oct-03

www.vishay.com

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