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DLT1120 Toslink Transmitter Module, SPDIF Optical Audio
The DLT1120 is a Toslink/SPDIF fiber optic transmitter module that converts an electrical digital-audio signal into light coupled into plastic optical fiber.
Product Overview
This transmitter packages an LED and drive IC with a Toslink connector in a black PCB-mount housing. It operates from +3 to +5V with a TTL-compatible input and handles NRZ up to 16 Mbps, coupling light into plastic fiber for S/PDIF audio transmission.
Key Features
- Electrical-to-optical conversion for S/PDIF.
- 16 Mbps NRZ.
- +3 to +5V, TTL-compatible input.
- PCB-mount black housing.
- Efficient light coupling into plastic fiber.
Specifications
| Parameter | Value | Unit | Notes / Conditions |
|---|---|---|---|
| Device Type | Fiber optic transmitter (TX), SPDIF/Toslink | – | Electrical to optical. |
| Data Rate | 16 | Mbps | NRZ, supplier family. |
| Supply Voltage | +3 to +5 | V | TTL-compatible input. |
| Operating Temperature | -20 to +70 | °C | Supplier rating. |
| Mounting | PCB, female, two fixed feet | – | Gray shutter. |
| Certification | ISO9001, RoHS | – | Supplier-stated. |
Applications
- DVD player and set-top-box optical outputs.
- Soundbar and TV S/PDIF out.
- Digital audio over plastic fiber.
See our full Toslink / S/PDIF optical audio range for receivers, transmitters and optical audio cables.
Ordering & Customization
To quote, please confirm the device (receiver RX or transmitter TX), the package/footprint, quantity, and any cable length for cable products. Contact our sales team with your application and we will recommend the right part.
FAQ
Is DLT1120 a transmitter or receiver? It is a transmitter (TX): electrical signal in, light out over plastic fiber.
What speed? Up to 16 Mbps NRZ, suited to S/PDIF digital audio.
Why Choose Us
TOCP Fibercable supplies Toslink/SPDIF fiber optic receivers, transmitters and optical audio cables, with supplier parameters checked before quoting. Read our FAQ page or visit the home page.
Related products: You may also need DLT 1811 Toslink Transmitter Module, 850nm TX SPDIF 16Mbps, 5.5mm Braided Black Toslink Digital Optical Audio Cable and FSMA SMA905 Plastic Optical Fiber Transceiver Module.





