TFBS4650
www.vishay.com
Vishay Semiconductors
Infrared Transceiver, 9.6 kbit/s to 115.2 kbit/s (SIR)
FEATURES
• Compliant with the IrDA physical layer IrPHY 1.4
(low power specification, 9.6 kbit/s to
115.2 kbit/s)
• Link distance: 30 cm/20 cm full 15° cone with
standard or low power IrDA, respectively.
Emission intensity can be set by an external
resistor to increase the range for extended low
power spec to > 50 cm
• Typical transmission distance to standard device: 50 cm
• Small package (L x W x H in mm): 6.8 x 2.8 x 1.6
• Low current consumption 75 μA idle at 3.6 V
• Shutdown current 10 nA typical at 25 °C
• Operates from 2.4 V to 3.6 V within specification over full
temperature range from - 25 °C to + 85 °C
• Split power supply, emitter can be driven by a separate
power
supply
not
loading
the
regulated.
U.S. pat. no. 6,157,476
• Qualified for lead (Pb)-free and Sn/Pb processing (MSL4)
• Material categorization: for definitions of compliance
please see
www.vishay.com/doc?99912
20206
DESCRIPTION
The TFBS4650 is one of the smallest IrDA
®
compliant
transceivers available. It supports data rates up to 115
kbit/s. The transceiver consists of a PIN photodiode,
infrared emitter, and control IC in a single package.
APPLICATIONS
• Mobile phone
• PDAs
PRODUCT SUMMARY
PART NUMBER
TFBS4650
DATA RATE
(kbit/s)
115.2
DIMENSIONS
HxLxW
(mm x mm x mm)
1.6 x 6.8 x 2.8
LINK DISTANCE
(m)
0 to
≥
0.3
OPERATING
VOLTAGE
(V)
2.4 to 3.6
IDLE SUPPLY
CURRENT
(mA)
0.075
PARTS TABLE
PART
TFBS4650-TR1
TFBS4650-TR3
TFBS4650-TR4
TFBS4650-TT3
DESCRIPTION
Oriented in carrier tape for side view surface mounting
Oriented in carrier tape for side view surface mounting
Oriented in carrier tape for side view surface mounting
Oriented in carrier tape for top view surface mounting
QTY/REEL
1000 pcs
2500 pcs
6000 pcs
2500 pcs
Rev. 1.6, 11-Dec-17
Document Number: 84672
1
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
TFBS4650
www.vishay.com
FUNCTIONAL BLOCK DIAGRAM
V
CC
Vishay Semiconductors
PD
Amplifier
Comparator
Tri-state
driver
RXD
IREDA
SD
Mode
control
TXD
ASIC
IRED driver
IRED
IREDC
GND
19283
PIN DESCRIPTION
PIN NUMBER
1
2
3
SYMBOL
IREDA
IREDC
TXD
DESCRIPTION
IRED anode, connected via a current limiting resistor to V
CC2
. A separate
unregulated power supply can be used.
IRED cathode, do not connect for standard operation.
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.
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 V
CC
. Receiver echoes transmitter output.
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.
Power supply, 2.4 V to 3.6 V. This pin provides power for the receiver and
transmitter drive section. Connect V
CC1
via an optional filter.
Ground
I
High
I/O
ACTIVE
4
RXD
O
Low
5
6
7
SD
V
CC
GND
I
High
PINOUT
TFBS4650, 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.
Pin 1
Pin 7
19284
Rev. 1.6, 11-Dec-17
Document Number: 84672
2
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
TFBS4650
www.vishay.com
Vishay Semiconductors
TEST CONDITIONS
0 V < V
CC2
< 6 V
0 V < V
CC1
< 3.6 V
All states
Independent of V
CC1
or V
CC2
For all pins,
except IRED anode pin
P
D
T
J
T
amb
T
stg
See section
“Recommended Solder Profile”
< 90 μs, t
on
< 20 %
JESD51
I
IRED
(RP)
I
IRED
(DC)
R
thJA
SYMBOL
V
CC1
V
CC2
V
IN
V
IN
MIN.
-0.5
-0.5
-0.5
-0.5
-40
-
-
-
-25
-40
-
-
-
-
TYP.
-
-
-
-
-
-
-
-
-
-
-
-
-
300
MAX.
6
6
V
CC
+ 0.5
6
40
20
250
125
+85
+100
-
500
100
-
UNIT
V
V
V
V
mA
mA
mW
°C
°C
°C
°C
mA
mA
K/W
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Supply voltage range, transceiver
Supply voltage range, transmitter
Voltage at RXD
Input voltage range, transmitter TXD
Input currents
Output sinking current
Power dissipation
Junction temperature
Ambient temperature range (operating)
Storage temperature range
Soldering temperature
(1)
Repetitive pulse output current
Average output current (transmitter)
Thermal resistance junction-to-ambient
Notes
• Reference point pin, ground unless otherwise noted
Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing
(1)
Sn/lead (Pb)-free soldering. The product passed Vishay’s standard convection reflow profile soldering test
EYE SAFETY INFORMATION
STANDARD
IEC/EN 60825-1 (2007-03), DIN EN 60825-1 (2008-05) “SAFETY OF LASER PRODUCTS -
Part 1: equipment classification and requirements”, simplified method
IEC 62471 (2006), CIE S009 (2002) “Photobiological Safety of Lamps and Lamp Systems”
DIRECTIVE 2006/25/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 5
th
April 2006
on the minimum health and safety requirements regarding the exposure of workers to risks arising
from physical agents (artificial optical radiation) (19
th
individual directive within the meaning of article
16(1) of directive 89/391/EEC)
CLASSIFICATION
Class 1
Exempt
Exempt
Note
• Vishay transceivers operating inside the absolute maximum ratings are classified as eye safe according the above table
Rev. 1.6, 11-Dec-17
Document Number: 84672
3
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
TFBS4650
www.vishay.com
Vishay Semiconductors
TEST CONDITIONS
SYMBOL
V
CC
SD = low (< 0.8 V),
E
eamb
= 0 klx,
E
e
< 4 mW/m
2
- 25 °C
≤
T
≤
+ 85 °C
SD = low (< 0.8 V),
E
eamb
= 0 klx,
E
e
< 4 mW/m
2
T = + 25 °C
SD = low, TXD = high
SD = high
(> V
CC
- 0.5 V),
T = 25 °C, E
e
= 0 klx
SD = high
(> V
CC
- 0.5 V),
- 25 °C
≤
T
≤
+ 85 °C
MIN.
2.4
TYP.
-
MAX.
3.6
UNIT
V
ELECTRICAL CHARACTERISTICS
(T
amb
= 25 °C, V
CC
= 2.4 V to 3.6 V unless otherwise noted)
PARAMETER
TRANSCEIVER
Supply voltage range
Dynamic supply current
Idle, dark ambient
I
CC
-
90
130
μA
Idle, dark ambient
Peak supply current during
transmission
Shutdown supply current
dark ambient
Shutdown supply current, dark
ambient
Operating temperature range
Input voltage low (TXD, SD)
Input voltage high
Input voltage threshold SD
Output voltage low
Output voltage high
RXD to V
CC
pull-up impedance
Input capacitance
(TXD, SD)
I
CC
-
75
-
μA
I
ccpk
I
SD
-
-
2
-
3
0.1
mA
μA
I
SD
T
A
V
IL
-
-25
-0.5
V
CC
- 0.5
0.9
-
-
-
-
1.35
-
-
500
-
1
+85
0.5
6
1.8
V
CC
x 0.15
V
CC
+ 0.5
-
6
μA
°C
V
V
V
V
V
kΩ
pF
V
CC
= 2.4 V to 3.6 V
V
CC
= 2.4 V to 3.6 V
V
CC
= 2.4 V to 3.6 V
C
LOAD
= 15 pF
V
CC
= 2.4 V to 3.6 V
C
LOAD
= 15 pF
SD = V
CC
V
CC
= 2.4 V to 5 V
V
IH
V
OL
V
OH
R
RXD
C
I
-0.5
V
CC
x 0.8
-
-
Note
• Typical values are for design aid only, not guaranteed nor subject to production testing
Rev. 1.6, 11-Dec-17
Document Number: 84672
4
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
TFBS4650
www.vishay.com
Vishay Semiconductors
TEST CONDITIONS
SYMBOL
MIN.
TYP.
MAX.
UNIT
OPTOELECTRONIC CHARACTERISTICS
(T
amb
= 25 °C, V
CC
= 2.4 V to 3.6 V unless otherwise noted)
PARAMETER
RECEIVER
Sensitivity:
minimum irradiance E
e
in
angular range
(1)(2)
Maximum irradiance E
e
in
angular range
No receiver output input
irradiance
(3)
Rise time of output signal
Fall time of output signal
RXD pulse width of output
signal, 50 %
(4)
Receiver start up time
Latency
TRANSMITTER
IRED operating current, current
controlled
Output leakage IRED current
Output radiant intensity
(5)
The IRED current is internally
controlled but also can be
reduced by an external resistor R1
T
amb
= 85 °C
a = 0°, 15°, TXD = high, SD = low,
V
CC1
= 3 V, V
CC2
= 3 V, R1 = 30
Ω
(resulting in about 50 mA drive
current)
a = 0°, 15°, TXD = high, SD = low,
V
CC1
= 3 V, V
CC2
= 3 V, R1 = 0
Ω,
I
F
= 300 mA
V
CC1
= 5 V, a = 0°, 15°
TXD = low or SD = high
(receiver is inactive as long as
SD = high)
V
CC
= 3 V, I
F
= 50 mA
I
D
I
IRED
I
e
200
-
4
-
-
-
400
1
150
mA
μA
mW/sr
9.6 kbit/s to 115.2 kbit/s
λ
= 850 nm to 900 nm
λ
= 850 nm to 900 nm
According to IrDA IrPHY 1.4,
appendix A1, fluorescent light
specification
10 % to 90 %, C
L
= 15 pF
90 % to 10 %, C
L
= 15 pF
Input pulse width
1.63 μs
Power on delay
t
L
E
e
E
e
E
e
t
r (RXD)
t
f (RXD)
t
PW
-
5
(500)
4
(0.4)
20
20
1.7
-
-
40
(4)
-
-
-
-
2
100
50
81
(8.1)
-
-
100
100
2.9
150
200
mW/m
2
(μW/cm
2
)
kW/m
2
(mW/cm
2
)
mW/m
2
(μW/cm
2
)
ns
ns
μs
μs
μs
Output radiant intensity
(5)
I
e
-
25
-
mW/sr
Output radiant intensity
(5)
Saturation voltage of IRED
driver
Peak - emission wavelength
Optical rise time,
optical fall time
Optical output pulse duration
Optical output pulse duration
Optical overshoot
I
e
-
-
0.04
mW/sr
V
CEsat
λ
p
t
ropt
,
t
fopt
-
880
20
30
1.45
-
0.4
886
-
t
50
1.61
-
-
900
100
300
2.2
20
V
nm
ns
μs
μs
μs
%
Input pulse width t < 30 μs
Input pulse width t 3 30 μs
Input pulse width t = 1.63 μs
t
opt
t
opt
t
opt
Notes
• Typical values are for design aid only, not guaranteed nor subject to production testing
(2)
This parameter reflects the backlight test of the IrDA physical layer specification to guarantee immunity against light from fluorescent lamps.
(3)
IrDA sensitivity definition: minimum irradiance E in angular range, power per unit area. The receiver must meet the BER specification while
e
the source is operating at the minimum intensity in angular range into the minimum half-angular range at the maximum link length
(4)
Maximum irradiance E in angular range, power per unit area. The optical delivered to the detector by a source operating at the maximum
e
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
(5)
RXD output is edge triggered by the rising edge of the optical input signal. The output pulse duration is independent of the input pulse
duration
(6)
The radiant intensity can be adjusted by the external current limiting resistor to adapt the intensity to the desired value. The given value is
for minimum current consumption. This transceiver can be adapted to > 50 cm operation by increasing the current to > 200 mA, e.g.
operating the transceiver without current control resistor (i.e. R1 = 0
Ω)
and using the internal current control
Rev. 1.6, 11-Dec-17
Document Number: 84672
5
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
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