TORX193
2001-08-10
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FIBER OPTIC RECEIVING MODULE
TORX193
FIBER OPTIC RECEIVING MODULE
FOR DIGITAL AUDIO EQUIPMENT
AND NAVIGATION SYSTEM
Conform to JEITA Standard CP−1201 (For
Digital Audio Interfaces including Fiber
Optic inter−connections).
TTL Interface
ATC (Automatic Threshold Control) circuit is
used for stabilized output at a wide range of
optical power level.
1. Maximum Ratings (Ta = 25°C)
Characteristics Symbol Rating Unit
Storage Temperature Tstg −40 to 85 °C
Operating Temperature Topr −40 to 85 °C
Supply Voltage VCC −0.5 to 7 V
Low Level Output Current IOL 20 mA
High Level Output Current IOH −1 mA
Soldering Temperature Tsol 260 (Note 1) °C
Note 1: Soldering time ≤ 10 s (More than 1 mm apart from the package).
2. Recommended Operating Conditions
Characteristics Symbol Min Typ. Max Unit
Supply Voltage VCC 4.75 5.0 5.25 V
High Level Output Current IOH ― ― −150 µA
Low Level Output Current IOL ― ― 1.6 mA
Unit: mm
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3. Electrica l and Optical Characteristics (Ta = 25°C, VCC = 5 V)
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 TOTX193 0.2 ― 10 m
Pulse Width Distortion (Note 4) ∆tw
Pulse width 165 ns
Pulse cycle 330 ns
CL = 10 pF, Using TOTX193
−25 ― 25 ns
Maximum Receivable
Power (Note 5) PMAX 6 Mb / s, Using APF and
TOTX193 −14.5 ― ― dBm
Minimum Receivable
Power (Note 5) PMIN 6 Mb / s, Using APF and
TOTX193 ― ― −27 dBm
Current Consumption ICC ― 22 40 mA
High Level Output Voltage VOH VCC = 4.75 V
IOH = −0.15 mA 2.7 ― ― V
Low Level Output Voltage VOL VCC = 4.75 V
IOL = 1.6 mA ― ― 0.4 V
Note 2: For data rate > 3 Mb / s, the duty factor must be such as kept 25 to 75%.
High level output when optical flux is received. Low level output when optical flux is not received.
Note 3: All Plastic Fiber (980 / 1000 µm).
Note 4: Between input of a fiber optic transmitting module TOTX193 and output of TORX193.
Note 5: BER ≤ 10−9, Valued by peak.
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4. Example of Typical Characteristics (Note 6)
Note 6: There give characteristic examples, and its values are not guaranteed.
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Note 6: There give characteristic examples, and its values are not guaranteed.
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5. Application Circuit
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6. Precautions during use
(1) Maximum rating
The maximum ratings are the limit values which must not be exceeded when using the device. Any
one of the rating must not be exceeded. If The maximum rating is exceeded, the characteristics may
not be recovered. In some extreme cases, the device may be permanently damage.
(2) Soldering
Optical modules use semiconductor devices internally. However, in principle, optical modules are
optical components. At soldering, take care that flux dose not contact the emitting surface or
detecting surface. Also take care at flux removal after soldering.
Some optical modules come with protective cap. The protective cap is used to avoid malfunction when
the optical module is not in use. Not that it is not dust or waterproof.
As mentioned before, optical modules are optical component. Thus, in principle, soldering where there
may be flux residue or flux removal after soldering is not recommended. Toshiba recommends that
soldering be performed without the optical module mounted on the board. Then, after the board is
cleaned, solder the optical module manually. Do not perform any further cleaning.
If the optical module cannot be soldered manually, use non−halogen (chlorine−free) flux and make
sure, without cleaning, there is no residue such as chlorine. This is one of the ways to eliminate the
effects of flux. In such a case, check the reliability.
(3) Noise resistance
Where the fiber optic receiving module case uses conductive resin, shield by connecting the
reinforcing pin at a front end of the module to GND. When using this optical module, connect the pin
to SIGNAL−GND.
Where the fiber optic receiving module case has a resistance of several tens of ohms, take care that
the case does not contact power line of other circuits.
It is believed that the use of optical transfer devices improve the noise resistance. In principle, optical
fiber is not affected by noise. However, especially receiving module which handle signals whose level
is extremely small, are comparatively more susceptible to noise.
TOSLINK improves noise resistance using a conductive case. However, the current of the signal
output from the photodiode of the optic receiving module is extremely small. Thus, depending on the
usage environment, shielding the case is not sufficient for noise resistance.
When using TOSLINK, Toshiba recommends that you test using the actual device and check the
noise resistance.
Use a simple noise filter on the TOSLINK fiber optic receiving module power line. If the ripple in
power supply used is high, further reinforce the filter.
When locating the optical module in an area susceptible to radiated noise, increase shielding by
covering the optical module and the power line filter using a metallic cover.
(4) Vibration and shock
This module is resin−molded construction with wire fixed by resin. This structure is relatively sound
against vibration or shock, In actual equipment, there are some cases where vibration, shock, and
stress is applied to soldered parts or connected parts, resultingin line cut. Attention must be paid to
the design of the mechanism for applications which are subject to large amounts of vibration.
(5) Fixing fiber optical receiving module
Solder the fixed pin (pins 5 and 6) of fiber optic receiving module TORX193 to the printed circuit
board to fix the module to the board.
(6) Shielding and wiring pattern of fiber optic receiving modules
To shield, connect the fixed pins (pins 5 and 6) of fiber optic transceiving module TORX193 to the
GND.
Where the fiber optic receiving module uses conductive resin, be careful that the case does not touch
wiring (including land).
To improve noise resistance, shield the optical module and the power line filter using a metallic cover.
(7) Solvent
When using solvent for flux removal, do not use a high acid or high alkali solvent. Be careful not to
pour solvent in the optical connector ports. If solvent is inadvertently poured there, clean with cotton
tips.
(8) Protective cap
When the fiber optic receiving module TORX193 is not in use, use the protective cap.
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(9) Supply voltage
Use the supply voltage within the Typ. operating condition (VCC = 5 ± 0.25 V). Make sure that supply
voltage does not exceed the maximum rating value of 7 V, even instantaneously.
(10) Interface
TORX193 has a TTL interface. It can be interfaced with C−MOS IC that has compatibility with TTL
level.
(11) Output
When the receiver output is at low level and connected to the power supply, or when the output is at
high level and connected to GND, the internal IC may be destroyed.
(12) Soldering condition
Solder at 260°C or less within ten seconds.
(13) Precaution on waste
When discarding devices and packing materials, follow procedures stipulated by local regulations in
order to protect the environment against contamination.
(14) Precaution on use
Toshiba is continually working to improve the quality and the reliability of its products. Nevertheless,
semiconductor devices in general can malfunction or fail due to their inherent electrical sensitivity
and vulnerability to physical stress. It is the responsibility of the buyer, when utilizing Toshiba
products, to observe standards of safety, and to avoid situations in which a malfunction or failure of a
Toshiba product could cause loss of human life, bodily injury or damage to property.
In developing your designs, please ensure that Toshiba products are used within specified operating
ranges as set forth in the most recent product specifications. Also, please keep in mind the
precautions and conditions set forth in the Toshiba Semiconductor Reliability Handbook.
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• TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor
devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical
stress. It is the responsibility of the buyer, when utilizing TOSHIBA products, to comply with the standards of
safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of
such TOSHIBA products could cause loss of human life, bodily injury or damage to property.
In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as
set forth in the most recent TOSHIBA products specifications. Also, please keep in mind the precautions and
conditions set forth in the “Handling Guide for Semiconductor Devices,” or “TOSHIBA Semiconductor Reliability
Handbook” etc..
• The TOSHIBA products listed in this document are intended for usage in general electronics applications
(computer, personal equipment, office equipment, measuring equipment, industrial robotics, domestic appliances,
etc.). These TOSHIBA products are neither intended nor warranted for usage in equipment that requires
extraordinarily high quality and/or reliability or a malfunction or failure of which may cause loss of human life or
bodily injury (“Unintended Usage”). Unintended Usage include atomic energy control instruments, airplane or
spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments,
medical instruments, all types of safety devices, etc.. Unintended Usage of TOSHIBA products listed in this
document shall be made at the customer’s own risk.
• The information contained herein is presented only as a guide for the applications of our products. No
responsibility is assumed by TOSHIBA CORPORATION for any infringements of intellectual property or other
rights of the third parties which may result from its use. No license is granted by implication or otherwise under
any intellectual property or other rights of TOSHIBA CORPORATION or others.
• The information contained herein is subject to change without notice.
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RESTRICTIONS O N PRODUCT USE
