i7032
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 for 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 extinction 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 unable 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.
Wide operation temperature range: -40
℃
~ +85
℃
.
Integrated soft-start circuit.
On chip temperature-compensated modulation current.
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