TOTX173 TOSLINK Fiber Optic Transmitter Module

TOTX173 Fiber Optic Transmitting Module – TOSLINK DIP Package by Toshiba

The TOTX173 is a fiber optic transmitter module manufactured by Toshiba. It supports the TOSLINK standard for digital optical data transmission and operates with a TTL-compatible input. The module transmits data at rates up to 6 Mb/s, with typical rise and fall times of approximately 30 ns.

The device operates on a 5 V ±0.25 V supply and functions within an ambient temperature range of –20 °C to +70 °C, with storage conditions ranging from –40 °C to +70 °C. It conforms to the JEITA CP‑1201 standard, providing defined mechanical and electrical parameters for digital audio signal transmission.

The TOTX173 is constructed in a through-hole DIP package, with approximate dimensions of 8.5 mm (H) × 13 mm (L) × 15.5 mm (W). The output light wavelength is 660 nm, with an optical output power range from –21 dBm to –15 dBm, suitable for signal transmission over up to 10 meters using standard plastic optical fiber.

Key Specs
Function: TOSLINK Fiber Optic Transmitter
Data Rate: Up to 6 Mb/s
Input Interface: TTL Compatible
Rise/Fall Time: 30 ns (Typical)
Supply Voltage: 5 V ±0.25 V
Operating Temperature: –20 °C to +70 °C
Storage Temperature: –40 °C to +70 °C
Optical Output Power: –21 dBm to –15 dBm
Wavelength: 660 nm
Transmission Distance: Up to 10 m (Plastic Optical Fiber)
Package: Through-Hole DIP (~8.5 × 13 × 15.5 mm)
Compliance: JEITA CP‑1201
Status: Obsolete