TDFS4500, Elektronika, elementy
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TFDU4100/TFDS4500/TFDT4500
Vishay Telefunken
2.7 V to 5.5 V Serial Infrared Transceiver
Module Family (SIR, 115.2 kbit/s)
Description
The TFDU4100, TFDS4500, and TFDT4500 are a
family of low–power infrared transceiver modules
compliant to the IrDA 1.2 standard for serial infrared
(SIR) data communication, supporting IrDA speeds up
to 115.2 kbit/s. Integrated within the transceiver
modules are a photo PIN diode, infrared emitter
(IRED), and a low–power analog control IC to provide
a total front–end solution in a single package.
Telefunken’s SIR transceivers are available in three
package options, including our BabyFace package
(TFDU4100), the smallest SIR transceiver available
on the market. This wide selection provides flexibility
for a variety of applications and space constraints. The
transceivers are capable of directly interfacing with a
wide variety of I/O chips which perform the
pulse–width modulation/demodulation function,
including Telefunken’s TOIM3000/ TOIM3232. At a
minimum, a current– limiting resistor in series with the
infrared emitter and a V
CC
bypass capacitor are the
only external components required to implement a
complete solution.
Features
Compliant to IrDA 1.2 (Up to 115.2 kbit/s)
BabyFace (Universal) Package Capable of
Surface Mount Solderability to Side and Top View
Orientation
2.7 to 5.5 V Wide Operating Voltage Range
Low–Power Consumption (1.3 mA Supply Current)
Directly Interfaces with Various Super I/O and
Controller Devices and Telefunken’s TOIM3000
and TOIM3232 I/Os
Power Sleep Mode Through V
CC1
/SD Pin
(5 nA Sleep Current)
Built–In EMI Protection – No External Shielding
Necessary
Long Range (Up to 3.0 m at 115.2 k/bit/s)
Three Surface Mount Package Options
–
Few External Components Required
Universal (9.7
×
4.7
×
4.0 mm)
–
Side View (13.0
5.95
5.3 mm)
×
×
Backward Compatible to all Telefunken
SIR Infrared Transceivers
–
Top View (13.0
×
7.6
×
5.95 mm)
Applications
Notebook Computers, Desktop PCs, Palmtop
Computers (Win CE, Palm PC), PDAs
Telecommunication Products
(Cellular Phones, Pagers)
Internet TV Boxes, Video Conferencing Systems
Digital Still and Video Cameras
External Infrared Adapters (Dongles)
Printers, Fax Machines, Photocopiers, Screen
Projectors
Medical and Industrial Data Collection Devices
Package Options
TFDU4100
TFDS4500
TFDT4500
Baby Face (Universal)
Side View
Top View
Document Number 82514
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TFDU4100/TFDS4500/TFDT4500
Vishay Telefunken
Ordering Information
Part Number
Qty / Reel
Description
TFDU4100–TR3
1000 pcs
Oriented in carrier tape for side view surface mounting
TFDU4100–TT3
1000 pcs
Oriented in carrier tape for top view surface mounting
TFDS4500–TR3
750 pcs
TFDT4500–TR3
750 pcs
Functional Block Diagram
V
CC1
/SD
V
CC2
Driver
Comparator
Rxd
Amplifier
R1
IRED Anode
AGC
Logic
SC
Txd
IRED Cathode
Open Collector Driver
14876
GND
Figure 1. Functional Block Diagram
Pin Description
Pin Number
Function
Description
I/O
Active
“U” and “T” Option
“S” Option
1
8
IRED Anode
IRED anode, should be externally con-
nected to V
CC2
through a current control
resistor
2
1
IRED Cathode
IRED cathode, internally connected to
driver transistor
3
7
Txd
Transmit Data Input
I
HIGH
4
2
Rxd
Received Data Output, open collector.
No external pull–up or pull–down resistor
is required (20 k
resistor internal to de-
vice). Pin is inactive during transmission.
O
LOW
5
6
NC
Do not connect
6
3
V
CC1
/ SD
Supply Voltage / Shutdown
7
5
SC
Sensitivity control
I
HIGH
8
4
GND
Ground
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TFDU4100/TFDS4500/TFDT4500
Vishay Telefunken
“U” Option BabyFace (Universal)
“S” Option Side View
“T” Option Top View
IRED
Detector
IRED
Detector
IRED
Detector
14885
Figure 2. Pinnings
Absolute Maximum Ratings
Reference point Pin GND unless otherwise noted.
Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing.
Parameters
Test Conditions
Symbol
Min.
Typ.
Max.
Unit
Supply Voltage Range
0 V
3
V
CC2
3
6 V
V
CC1
– 0.5
6
V
0 V
3
V
CC1
3
6 V
V
CC2
– 0.5
6
V
Input Currents
For all Pins,
except IRED Anode Pin
10
mA
Output Sink Current
25
mA
Power Dissipation
See Derating Curve
P
D
200
mW
Junction Temperature
T
J
125
°
C
Ambient Temperature
Range (Operating)
T
amb
–25
+85
°
C
Storage Temperature
Range
T
stg
–25
+85
°
C
Soldering Temperature
See Recommended Sol-
der Profile
215
240
°
C
Average IRED Current
I
IRED
(DC)
100
mA
Repetitive Pulsed IRED
Current
t < 90
m
s, t
on
< 20%
I
IRED
(RP)
500
mA
IRED Anode Voltage
V
IREDA
– 0.5
6
V
Transmitter Data Input
Voltage
V
Txd
– 0.5
V
CC1
+0.5
V
Receiver Data Output
Voltage
V
Rxd
– 0.5
V
CC1
+0.5
V
Virtual Source Size
Method:
(1–1/e) encircled energy
d
2.5
2.8
mm
Maximum Intensity for
Class 1 Operation of
IEC825–1 or EN60825–1
(worst case IrDA SIR
pulse pattern *)
EN60825, 1997
400
mW/sr
* Note:
Transmitted data: continuously transmitted “0”. In normal data transfer operation “0” and “1” will be transmitted with
the same probability. Therefore, for that case, about a factor of two of safety margin is included. However, for worst
case thermal stress testing such data pattern are often used and for this case the 400 mW/sr value has to be taken.
Document Number 82514
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TFDU4100/TFDS4500/TFDT4500
Vishay Telefunken
Electrical Characteristics
T
amb
= 25
C, V
CC
= 2.7 V to 5.5 V unless otherwise noted.
Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing.
Parameters
Test Conditions / Pins
Symbol
Min.
Typ.
Max.
Unit
Transceiver
Supply Voltage
Receive Mode
Transmit Mode, R2 = 47
(see Recommended Applica-
tion Circuit)
V
CC1
2.7
2.0
5.5
5.5
V
V
Supply Current Pin V
CC1
(Receive Mode)
V
CC1
= 5.5 V
V
CC1
= 2.7 V
I
CC1
(Rx)
1.3
1.0
2.5
1.5
mA
mA
Supply Current Pin V
CC1
(avg) (Transmit Mode)
I
IRED
= 210 mA
(at IRED Anode Pin)
V
CC1
= 5.5 V
V
CC1
= 2.7 V
I
CC1
(Tx)
5.0
3.5
5.5
4.5
mA
mA
Leakage Current of IR
Emitter, IRED Anode Pin
V
CC1
= OFF, T
XD
= LOW,
V
CC2
= 6 V, T = 25 to 85
I
L
(IREDA)
0.005
0.5
m
A
°
C
Transceiver Power On
Settling Time
T
PON
50
m
s
Optoelectronic Characteristics
T
amb
= 25
C, V
CC
= 2.7 V to 5.5 V unless otherwise noted.
Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing.
Parameters
Test Conditions
Symbol
Min.
Typ.
Max.
Unit
Receiver
Minimum Detection
BER = 10
–8
(IrDA Specification)
Threshold Irradiance
mW/m
2
=
±
15
°
, SIR Mode, SC = LOW
E
e
20
35
mW/m
2
=
±
15
°
, SIR Mode, SC = HIGH
E
e
6
10
15
kW/m
2
Maximum Detection
=
±
90
°
, SIR Mode, V
CC1
= 5 V
E
e
3.3
5
Threshold Irradiance
kW/m
2
=
±
90
°
, SIR Mode, V
CC1
= 3 V
E
e
8
15
mW/m
2
Logic LOW Receiver
Input Irradiance
SC = HIGH or LOW
E
e
4
Output Voltage –
Active, C = 15 pF, R = 2.2 k
V
OL
0.5
0.8
V
g
Rxd
Non–active, C = 15 pF, R = 2.2 k
V
OH
V
CC1
–0.5
V
Output Current –
Rxd
V
OL
< 0.8 V
I
OL
4
mA
Rise Time – Rxd
C = 15 pF, R = 2.2 k
t
r
(Rxd)
20
1400
ns
Fall Time – Rxd
C = 15 pF, R = 2.2 k
t
f
(Rxd)
20
200
ns
Pulse Width – Rxd
Output
Input pulse width = 1.6
m
s,
t
PW
1.41
8
m
s
115.2 kbit/s
Jitter, Leading Edge
of Output Signal
Over a Period of 10 bit, 115.2 kbit/s
t
i
2
m
s
Latency
t
L
100
500
m
s
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Document Number 82514
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Rev. A1.1, 09-Jul-99
TFDU4100/TFDS4500/TFDT4500
Vishay Telefunken
Optoelectronic Characteristics
T
amb
= 25
C, V
CC
= 2.7 V to 5.5 V unless otherwise noted.
Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing.
Parameters
Test Conditions
Symbol
Min.
Typ.
Max.
Unit
Transmitter
IRED Operating
Current
IRED Operating Current can be
adjusted by Variation of R1.
Current Limiting Resistor is in
Series to IRED:
R1
= 14
I
IRED
0.2
0.28
A
W,
V
CC2
= 5.0 V
Logic LOW Trans-
mitter Input Voltage
V
IL
(Txd)
0
0.8
V
Logic HIGH Trans-
mitter Input Voltage
V
IH
(Txd)
2.4
V
CC1
+0.5
V
Output Radiant In-
tensity
In Agreement with IEC825 Eye
Safety Limit, if
Current Limiting Resistor is in
Series to IRED:
R1
= 14
I
e
45
140
200
mW/sr
W,
V
CC2
= 5.0 V,
a
=
±
15
Txd Logic LOW Level
I
e
0.04
mW/sr
Angle of Half
Intensity
a
24
±
Peak Wavelength of
Emission
P
880
900
nm
Half–Width of
Emission Spectrum
60
nm
Optical Rise Time,
Fall Time
t
ropt,
t
fopt
200
600
ns
Optical Overshoot
25
%
Rising Edge Peak–
to-Peak Jitter of
Optical Output Pulse
Over a Period of 10 bits,
Independent of
Information content
0.2
s
Document Number 82514
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