TOTX179 is a fiber optic transmitting module that conforms to JEITA Standard CP-1201 for digital audio interfaces, including fiber optic interconnects. It features a TTL interface, LED driven by differential circuit, and a self-tapping hole for easy attachment to audio equipment panels.
The TOTX179 is a fiber‑optic transmitting module designed for digital audio equipment. It complies with the JEITA CP‑1201 standard and features a TTL interface with a differential LED driver.
The document details electrical and optical characteristics, mechanical dimensions, recommended PCB layout, and extensive usage precautions such as soldering limits, vibration resistance, and proper disposal of GaAs‑based LEDs.
| Storage Temperature | -40 to 70 °C |
|---|---|
| Operating Temperature | -20 to 70 °C |
| Supply Voltage (Voc) | -0.5 to 7 V |
| Input Voltage (VIN) | -0.5 to Voc+0.5 V |
| Data Rate | up to 12.8 Mb/s |
| Fiber Output Power | -21 to -15 dBm |
| Peak Emission Wavelength | 650 nm |
| Current Consumption | 15 – 20 mA |
The recommended supply voltage is 5.0 V (typical) with a range of 4.75 V to 5.25 V.
The module can operate from –20 °C up to 70 °C.
Solder at 260 °C or less for no more than ten seconds, and avoid flux contacting the emitting surface.
The module supports a maximum data rate of 12.8 Mb/s.