i 7032 general description the i7032 is the 3.3v to 5v, 200mbps laser - diode driver with automatic power control (apc). both accept differential pecl inputs and provide complementary output currents. a temperature - compensated reference voltage is provided f or laser bias and modulation current programming. this allows maximum 80ma to be programmed for bias and modulation current with two external resistors. the i7032 provides adjustable temperature - compensated modulation current to keep the optical extinctio n rate within specifications over the operation temperature range. the apc circuits incorporated with a monitor photo - diode and two external resistors maintain laser?s average power. a failure - monitor output is provided to indicate when the apc loop is un able to maintain average power. to prevent laser diode damage, an integrated soft - start circuit is provided. the output load can be dc and ac coupled in both 3.3v and 5v applications. the i7032 is in 24 - pin qfn package. features ? rise / fall time less than 1 ns. ? maximum 80ma bias current. ? maximum 80ma modulation current. ? differential pecl inputs. ? automatic power control (apc). ? +3.3v to +5v supply voltage. ? on chip temperature - compensated reference voltage. ? wi de operation temperature range: - 40 ~ +85 . ? integrated soft - start circuit. ? on chip temperature - compensated modulation current.
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