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PDF TFDU8108 Data sheet ( Hoja de datos )
| Número de pieza | TFDU8108 | |
| Descripción | Very Fast Infrared Transceiver Module (VFIR/ 16 Mbit/s)/ Serial Interface Compatible/ 2.7 V to 5.5 V Supply Voltage Range | |
| Fabricantes | Vishay Siliconix | |
| Logotipo |  |
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TFDU8108
Vishay Semiconductors
Very Fast Infrared Transceiver Module (VFIR, 16 Mbit/s), Serial
Interface Compatible, 2.7 V to 5.5 V Supply Voltage Range
Description
The TFDU8108 transceiver is part of a family of low-
power consumption infrared transceiver modules
compliant to the IrDA physical layer standard for VFIR
infrared data communication, supporting IrDA speeds
up to 16 Mbit/s (VFIR) and carrier based remote con-
trol modes up to 2 MHz. Integrated within the trans-
ceiver module are a PIN photodiode, an infrared
emitter (IRED), and a low-power BiCMOS control IC
to provide a total front-end solution in a single pack-
age.
18102
Vishay Semiconductors VFIR transceivers are avail-
able in the BabyFace package. This provides flexibil-
ity for a variety of applications and space constraints.
The transceivers are capable of directly interfacing
with a wide variety of I/O devices, which perform the
modulation/ demodulation function. At a minimum, a
VCC bypass capacitor is the only external component
required implementing a complete solution. For limit-
ing the transceiver internal power dissipation one
additional resistor might be necessary. The trans-
ceiver can be operated with logic I/O voltages as low
as 1.5 V. The functionality of the device is equivalent
to the TFDU6108 with the VFIR functionality added.
The IRED current is programmable to different levels,
no external current limiting resistor is necessary.
Features
• Compliant to the latest IrDA physical layer stan-
dard (Up to 16 Mbit/s) and TV Remote Control
• Compliant to the IrDA "Serial Interface
Specification for Transceivers"
• For 3.0 V and 5.0 V Applications, fully specified
2.7 V to 5.5 V
• Compliant to all logic levels between 1.5 V and 5 V
• Low Power Consumption
(typ. 2.0 mA Supply Current)
• Power Shutdown Mode
(< 1 µA Shutdown Current)
• Surface Mount Package Options
- Universal (L 9.7 mm × W 4.7 mm × H 4.0 mm)
- Side and Top View
• Tri-State-Receiver Output, Weak Pull-up when in
Shutdown Mode
• High Efficiency Emitter
• Baby Face (Universal) Package Capable of
Surface Mount Soldering to Side and Top
View Orientation
• Eye safety class 1 (IEC60825-1, ed. 2001), limited
LED on-time, LED current is controlled, no single
fault to be considered
• Built - In EMI Protection including GSM bands. -
EMI Immunity in GSM Bands > 300 V/m verified
No External Shielding Necessary
• Few External Components Required
• Pin to Pin Compatible to Legacy Vishay Semicon-
ductors SIR and FIR Infrared Transceivers
• Split power supply, transmitter and receiver can be
operated from two power supplies with relaxed
requirements saving costs,
US Patent No. 6,157,476
• Compliant with IrDA EMI and Background Light
Specification
• TV Remote Control Support
• Lead (Pb)-free device
• Device in accordance to RoHS 2002/95/EC and
WEEE 2002/96/EC
Document Number 82558
Rev. 1.6, 12-Aug-04
www.vishay.com
1
1 page  
Electrical Characteristics
TFDU8108
Vishay Semiconductors
Transceiver
Tamb = 25 °C, VCC = 2.7 V to 5.5 V unless otherwise noted.
Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing.
Parameter
Test Conditions
Symbol
Min
Typ.
Max
Unit
Supply voltage
VCC1
2.7
5.5 V
Vlogic
1.5
5.5 V
Dynamic supply current
1)
T = - 25 °C to 85 °C
active, no signal Ee = 0 klx
ICC1
3.0 10 mA
T = - 25 °C to 85 °C
active, no signal Ee = 0 klx, SIR
only
ICC1
1.6 2.5 mA
T = - 25 °C to 85 °C idle
active, no load Ee = 0 klx
Ilogic
5 µA
T = - 25 °C to 85 °C
Ee = 1 klx2) receive mode,
EEo = 100 mW/m2
(9.6 kbit/s to 4.0 Mbit/s),
RL = 10 kΩ to Vlogic = 5 V,
CL = 15 pF
Ilogic
1 mA
Shutdown supply current
inactive, set to shutdown mode
T = 25 °C, Ee = 0 klx
ISD
1 µA
inactive, set to shutdown mode
T = 25 °C, Ee = 1 klx 2)
shutdown mode, T = 85 °C,
not ambient light sensitive
ISD
ISD
1.5 µA
5 µA
Operating temperature range
TA - 25
+ 85
°C
Output voltage low
Cload = 15 pF, Vlogic = 5 V
VOL
0.5 0.8
V
Output voltage high
Cload = 15 pF, Vlogic = 5 V
VOH
Vlogic - 0.5
V
Input voltage low (Txd, SCLK) CMOS level 3)
VIL
0.15 x Vlogic
V
Input voltage high (Txd, SCLK) CMOS level 3)
VIH 0.9 x Vlogic
V
Input leakage current (Txd,
SCLK)
IL - 10
+ 10
µA
Input capacitance
CIN 5 pF
1) Receive mode only. In transmit mode, add the averaged programmed current of IRED current as ICC2
2) Standard Illuminant A
3) The typical threshold level is between 0.5 x Vlogic/2 (Vlogic = 3 V) and 0.4 x Vlogic (Vlogic = 5.5 V).With that the device will work with less
tight levels than the specified min/ max values. However, it is recommended to use the specified min/max values to avoid increased oper-
ating/standby supply currents.
Document Number 82558
Rev. 1.6, 12-Aug-04
www.vishay.com
5
5 Page 
Current Derating Diagram
600
500
400
300
200
100
Current derating as a function of
the maximum forward current of
IRED. Maximum duty cycle: 25%.
14875
0
–40 –20 0
20 40 60 80 100 120 140
Temperature ( °C )
Figure 5. Current Derating Diagram
TFDU8108
Vishay Semiconductors
Document Number 82558
Rev. 1.6, 12-Aug-04
www.vishay.com
11
11 Page | ||
| Páginas | Total 27 Páginas | |
| PDF Descargar | [ Datasheet TFDU8108.PDF ] | |
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