I7110 Datasheet, PDF (1/1 Pages) List of Unclassifed Manufacturers – 300 Mbps LED Drivers

i7110
General Description
The i7110 is a high-speed LED driver designed for low-cost optical fiber based
transmission systems. Data rates up to 300Mbps can be achieved depending on the
LED used.
The differential PECL inputs can be shaped by applying resistors between pulse
width adjustment pins and ground. This adjustment is continuous over a ± 500ps
range to compensate the LED unbalanced ‘turn on’and ‘turn off’time. A peaking and
clamp circuit is implemented in i7110 to enhance speed performance and connecting
external RC network performs this function.
The i7110 can switch a wide range of current 5mA to 120mA into typical LEDs.
To minimize the effects of temperature on LED output power, the device's modulation
current can be set via two external resistors to increase with a temperature coefficient
from 800ppm/c to 10000ppm/c.
Complementary current outputs help to maintain a constant supply current,
reducing EMI and supply noise generated by the transmitter module, and the current
is disabled if pin Disa is Pulled high. The i7110 is packaged in SSOP16 .
Features
í¯€ Data rates up to 300 Mbps, depending on LED.
í¯€ +5 V to +3.3 V operation.
í¯€ Programmable output current from 5mA to 120mA.
í¯€ Peaking circuit giving rise and fall time < 700ps.
í¯€ Clamping circuit enhances turn off time.
í¯€ Resistor programmable compensation for temperature dependence of LED output.
í¯€ PECL input with optional pulse width adjustment.
í¯€ Support most LED types.
í¯€ Support output current disable ability.
í¯€ Single Chip solution, available in SSOP16.