TORX179 Toshiba, TORX179 Datasheet - Page 4

• Manufacturer Part Number: TORX179
• Description: RECEIVER MODULE FIBER OPTIC
• Manufacturer: Toshiba
• Series: Toslink™r

Specifications of TORX179

• Data Rate: 12.8Mbps
• Voltage - Supply: 4.75 V ~ 5.25 V
• Power - Minimum Receivable: -24dBm
• Current - Supply: 40mA
• Applications: Digital Audio
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

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(8)
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(10) Interface
(11) Output
(12) Soldering condition
(13) Precautions when disposing of devices and packing materials.
(14) Precautions during use
Noise resistance
Support pins
Solvent
Protective cap
Supply voltage
It is believed that the use of optical transfer devices improve noise resistance. In theory, optical fiber
is not affected by noise at all. However, receiving modules which handle signals whose level is
extremely small, are susceptible to noise.
TOSLINK improve noise resistance to use a conductive case. However, the current signal output by
the optical receiving modules' photodiode is extremely small. Thus, in some environments, shielding
the case may not achieve sufficient noise resistance.
For systems which incorporate TOSLINK, Toshiba recommend testing using the actual device to
check its noise resistance.
Use a simple noise filter on TOSLINK fiber optic transceiving module's power line. If the ripple in the
power supply used is significant, reinforce the filter.
The optical module is to be used in an area which is susceptible to radiated noise, increase the
shielding by covering the optical module and the power line filter with a metallic cover.
Vibration and shock
This module is plastic sealed and has its wire fixed by resin. This structure is relatively resistant to
vibration and shock. In actual equipment, there are sometime cases in which vibration, shock, or
stress is applied to soldered parts or connected parts, resulting in lines cut. A care must be taken in
the design of equipment which will be subject to high levels of vibration.
The TORX179 has support pins in order to fix itself to the PCB temporary. Please make the hole for
these pins in the PCB under the condition described in board layout hole pattern.
Panel attachment
TORX179 has hole for panel attachment. Please be sure to attach it to panel with self−tapping screw.
When using solvent for flux removal, do not use a high acid or high alkali solvent. Be careful not to
pour solvent in to the optical connector ports. If solvent is inadvertently poured in to them, clean it off
using cotton tips.
When the TORX179 is not in use, attach the protective cap.
Use the supply voltage within the recommended operating condition (V
that supply voltage does not exceed the maximum rating value of 7 V, even for an instant.
The TORX179 has a TTL interface. It can be interfaced with any TTL−compatible C−MOS IC.
If the receiver output is at low and is connected to the power supply, or if the output is high and is
connected to GND, the internal IC may be destroyed.
Solder at 260°C or less for no more than ten seconds.
When disposing devices and packing materials, follow the procedures stipulated by local regulations
in order to protect the environment against contamination.
Toshiba is continually working to improve the quality and the reliability of their products.
Nevertheless, semiconductor devices in general can malfunction or fail due to their inherent electrical
sensitivity and their 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 the
malfunction or failure of a Toshiba product could cause loss of human life, bodily injury or damage to
property.
When developing equipment, please ensure that Toshiba products are used within the specified
operating ranges 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.
4
CC
= 5 ± 0.25 V). Make sure
TORX179
2001-07-26