TOSHIBA TODX297 Technical data
查询TODX297供应商
FIBER OPTIC TRANSCEIVING MODULE
TODX297
FIBER OPTIC TRANSCEIVING
MODULE FOR DUPLEX DIGITAL
SIGNAL COMMUNICATION
l Data rate: DC to 6 Mb / s (NRZ code)
l Transmission distance: Up to 40 m
l TTL interface
l LED is driven by Differential cuicuit.
l ATC (Automatic Threshold Control) circuit is
used for stabilized output at wide range of
optical power level.
l No need to change a resistor according to
transmission distance.
1. Maximum Ratings
(Ta = 25°C)
TODX297
Unit: mm
Characteristics Symbol Rating Unit
Storage Temperature T
Operating Temperature T
Supply Voltage V
Input Voltage V
Low Level Output Current I
High Level Output Current I
Soldering Temperature T
Note 1: Soldering time ≤ 3 s (More than 1 mm apart from the package).
Handling precaution: The LEDs used in this product contain GaAs (Gallium Arsenide).
Care must be taken to protect the safety of people and the environment when scrapping or
terminal processing.
stg
opr
CC
OL
OH
sol
IN
−40 to 85 °C
−40 to 85 °C
−0.5 to 7 V
−0.5 to V
260 (Note 1) °C
+ 0.5 V
CC
20 mA
−1 mA
1
2001-07-26
2. Recommended Operating Conditions
Characteristics Symbol Min Typ. Max Unit
TODX297
Supply Voltage V
High Level Input Voltage V
Low Level Input Voltage V
High Level Output Current I
Low Level Output Current I
CC
IH
IL
OH
OL
4.75 5.0 5.25 V
2.0 ― VCCV
0 ― 0.8 V
― ― −60 µA
― ― 1.2 mA
3. Electrical and Optical Characteristics
Characteristics Symbol Test Condition Min Typ. Max Unit
Data Rate NRZ Code (Note 2) DC ― 6 Mb / s
Transmission Distance Using APF (Note 3) and TODX297 0.2 ― 40 m
Pulse Width Distortion (Note 4) ∆tw
Fiber Output Power P
Peak Emission Wavelength λ
Maximum Receivable Power (Note 6) P
Minimum Receivable Power (Note 6) P
Current Consumption I
High Level Input Voltage V
Low Level Input Voltage V
High Level Input Current I
Low Level Input Current I
High Level Output Voltage V
Low Level Output Voltage V
f
p
MAX
MIN
CC
IH
IL
IH
IL
OH
OL
(Ta = 25°C, VCC = 5 V)
Using TODX297
Pulse width 165 ns
Pulse cycle 330 ns, C
APF 1 m, R = 4.3 kΩ (Note 5) −15 ― −9 dBm
― 670 ― nm
DC to 6 Mb / s, Using APF (Note 3) −9 ― ― dBm
DC to 6 Mb / s, Using APF (Note 3) ― ― −28 dBm
R = 4.3 kΩ ― 50 65 mA
= 10 pF
L
2.0 ― ― V
― ― 0.8 V
― ― 20 µA
― ― −0.4 mA
4.6 ― ― V
― ― 0.5 V
−55 ― 55 ns
Note 2: LED is on when input signal is high level, it is off when low level.
High level output when optical flux is received.
Low level output when it is not received.
Note 3: All Plastic Fiber (980 / 1000 µm).
Note 4: Between input of TODX297 and output of TODX297.
Note 5: Measure with a standard optical fiber with fiber optic connectors. Valued by peak.
Note 6: BER ≤ 10−9, Valued by peak.
2
2001-07-26
TODX297
Example of Typical Characteristics
(Note 7)
Note 7: There give characteristic examples, and its values are not guaranteed.
3
2001-07-26
Loading...