TODX270A

The TODX270A is a kind of fiber optic transceiving module for duplex digital signal communication. There are some features of TODX270A as follows: (1)data rate: DC to 6 Mb/s (NRZ code); (2)transmission distance: up to 40m; (3)TTL interface; (4)LED is driven by differential circuit; (5)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 TODX270A (Ta=25): (1)storage temperature, Tstg: -40 to 70; (2)operating temperature, Topr: -40 to 70; (3)supply voltage, VCC: -0.5 to 7 V; (4)input voltage, VIN: -0.5 to VCC+0.5 V; (5)low level output current, IOL: 20 mA; (6)high level output current, IOH: -1 mA; (7)soldering temperature, Tsol: 260. Then is about the recommended operating conditions: (1)supply voltage, VCC: 4.75 V min, 5.0 V typ and 5.25 V max; (2)high level input voltage, VIH: 2.0 V min and VCC V max; (3)low level input voltage, VIH: 0 V min and 0.8 V max; (4)high level output current, IOH: -60A max; (5)low level output current, IOL: 1.2 mA max.

The following is about the electrical and optical characteristics of TODX270A(Ta=25, VCC=5 V): (1)data rate: 6 Mb/s max at NRZ code; (2)fiber output power, Pf: -15 dBm min and -9 dBm max at R=0; (3)peak emission wavelength, P: 650 nm typ; (4)maximum receivable power, PMAX: -15 dBm min when DC-6 Mb/s, using APF; (5)minimum receivable power, PMIN: -27 dBm min when DC-6 Mb/s, using APF; (6)current consumption, ICC: 85 mA typ and 115 mA max at R=0; (7)high level input voltage, VIH: 2.0 V min; (8)low level input voltage, VIL: 0.8 V max ; (9)high level input current, IIH: 2.0A max; (10)low level input current, IIL: -0.4 mA max; (11)high level output voltage, VOH: 4.6 V min; (12)low level output voltage, VOL: 0.4 V max.