TORX178A

The TORX178A is a kind of fiber optic receiving module for digital audio equipments. There are some features of TORX178A as follows: (1)conform to EIAJ standard CP-1201 (for digital audio interface including fiber optic inter-connections); (2) a self-tapping hole for easy attachment to the panel of audio equipments; (3)ATC (automatic threshold control) circuit is used for stablized output at wide range of optical power level.

What comes next is about the maximum ratings of TORX178A(Ta=25): (1)storage temperature, Tstg: -40 to 70; (2)operating temperature, Topr: -20 to 70; (3)supply voltage, VCC: -0.5 to 7 V; (4)low level output current, IOL: 5 mA; (5)high level output current, IOH: -1 mA; (6)soldering temperature, Tsol: 260. Then is about the recommended operating conditions: supply voltage, VCC: 4.75 V min, 5.0 V typ and 5.25 V max.

The following is about the electrical and optical characteristics of TORX178A(Ta=25, VCC=5 V): (1)data rate: 0.1 Mb/s min and 6 Mb/s max at NRZ code; (2)maximum receivable power, PMAX: -14.5 dBm min when 6 Mb/s, using APF; (3)minimum receivable power, PMIN: -24 dBm max when 6 Mb/s, using APF; (4)pulse width distortion, tw: -30 ns min and 30 ns max when pulse with 165 ns, pulse cycle 330 ns, using TOTX173, TOTX176, TOTX178, CL=10 pF; (5)current consumption, ICC: 22 mA typ and 40 mA max; (6)high level output voltage, VOH: 3.6 V min and 4.0 V typ; (7)low level output voltage, VOL: 0.2 V typ and 0.4 V max; (6)transmission distance: 0.2 to 5 m when TOTX173, TOTX176 and TOTX178, using APF; (7)rise time, tr: 45 ns typ and 65 ns max when CL=10 pF; (8)rise time, tf: 25 ns typ and 65 ns max when CL=10 pF.