The TOTX195 is a high-performance fiber optic transmitter module designed by Toshiba for digital optical communication systems. Known for its compact design, low power consumption, and high reliability, the TOTX195 is widely adopted in audio, video, and data transmission applications where electrical noise immunity and signal integrity are critical.
Product Overview
The TOTX195 integrates a light-emitting diode (LED) and a driver IC in a single package, offering a simple and effective solution for converting electrical signals into optical signals. This module is typically paired with corresponding fiber optic receivers such as TORX modules to establish robust data links over plastic optical fiber (POF).
Key benefits include:
High immunity to electromagnetic interference (EMI)
Reliable signal transmission over medium distances
Simple plug-and-play interface with TTL/CMOS logic compatibility
Key Features and Parameters
Data Transmission Rate: Up to several Mbps (suitable for digital audio and control signals)
Supply Voltage: 4.75 V to 5.25 V
Optical Fiber Type: Plastic Optical Fiber (POF)
Emission Wavelength: ~660 nm (red light)
Package Type: Compact, snap-in mounting design
Operating Temperature Range: -20°C to +70°C
These parameters make the TOTX195 highly suitable for multimedia, automotive, and industrial communication systems.
Pinout Description
The TOTX195 typically comes with a 3-pin configuration:
VCC – Power supply (+5V)
GND – Ground
DATA IN – TTL/CMOS compatible input signal
This simple pin structure ensures easy integration with microcontrollers, DSPs, or other digital ICs.
Typical Applications
The TOTX195 finds applications in areas where noise-free data transfer is essential:
Digital Audio Interfaces (e.g., SPDIF / Optical Audio Transmission)
Set-Top Boxes and DVD Players
Automotive Infotainment Systems
Industrial Control Systems
Consumer Electronics requiring EMI-resistant communication
Advantages Over Alternatives
Compared with traditional copper-based transmission:
Noise Immunity: Optical signals are immune to EMI and crosstalk.
Longer Lifespan: No signal degradation over time due to corrosion.
Compact Design: Reduced board space compared to shielded cable solutions.
When compared with other optical transmitters, the TOTX195 offers superior integration and stability in a cost-effective package.
Market Outlook and Future Trends
With the increasing demand for high-fidelity audio, automotive networking, and industrial digitalization, fiber optic modules like the TOTX195 are expected to see continued adoption. The shift toward EMI-free communication in sensitive environments makes the TOTX195 a reliable choice for future-ready designs.
Conclusion
The TOTX195 fiber optic transmitter delivers reliable, EMI-immune, and easy-to-integrate optical communication for a wide range of consumer, automotive, and industrial applications. Its compact package, robust performance, and proven Toshiba quality make it a top choice for engineers and system designers.
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