Toshiba TORX173 TOSLINK Fiber Optic Receiver Module

TORX173 6Mb/s Fiber Optic Receiver Module – TOSLINK DIP Package by Toshiba

The TORX173 is a digital fiber optic receiving module developed by Toshiba. It supports TOSLINK standard audio signal reception with a TTL-compatible output interface. Operating at data rates up to 6 Mb/s, the module features a typical rise and fall time of 30 ns, allowing reliable data transfer in optical communication systems.

This module functions with a supply voltage of 5 V ±0.25 V, and operates over a temperature range of –20 °C to +70 °C. It includes an Automatic Threshold Control (ATC) circuit, designed to adjust the detection threshold in response to variations in optical input level. The JEITA CP‑1201 standard is met for conformity in digital audio interfaces.

The TORX173 is constructed in a DIP through-hole package measuring approximately 8.5 mm high, 13 mm long, and 15.5 mm wide. It is typically used in digital audio receivers, consumer electronics, and embedded systems where legacy optical interfaces are required. The part is currently listed as obsolete, with availability limited to existing surplus channels.

Key Specs
Function: TOSLINK Fiber Optic Receiver
Data Rate: Up to 6 Mb/s
Output Interface: TTL / CMOS Compatible
Rise/Fall Time: 30 ns (Typical)
Supply Voltage: 5 V ±0.25 V
Operating Temp Range: –20 °C to +70 °C
Storage Temp Range: –40 °C to +70 °C
Package Type: Through-Hole DIP
Dimensions: ~8.5 mm (H) × 13 mm (L) × 15.5 mm (W)
Signal Control: Automatic Threshold Control (ATC)
Compliance: JEITA CP-1201
Product Status: Obsolete / Legacy Use