器件名称: EL6242CL
功能描述: 3-Channel Laser Diode Driver w/Oscillator & APC Amplifier
文件大小: 140.39KB 共2页
简 介:EL6242C - Product Brief
EL6242C - Product Brief
3-Channel Laser Diode Driver w/Oscillator & APC Amplifier
Features
Shrink-Small Outline Package Voltage-controlled output current source requiring one external set resistor per channel Rise time = 0.8ns Fall time = 0.8ns On chip oscillator with frequency and amplitude control by use of external resistors to ground Oscillator to 500MHz Oscillator to 100mA pk/pk Single +5V supply (±10%) Disable feature for power-up protection and power savings Fast Settling APC Amplifier
General Description
The EL6242C is a high-performance three channel laser driver that provides controlled current to a grounded laser diode. Write channels 2 and 3 should be used as the write channels, with switching speeds of approximately one nanosecond rise/fall time. All three channels are summed together at the IOUT output, allowing the user to create multilevel waveforms in order to optimize laser diode performance. The level of the output current is set by an analog voltage applied to an external resistor which converts the voltage into a current at the IIN pin (virtually ground). The current seen at this pin is then amplified to become a current source at pin IOUT. An on-chip 500MHz oscillator is provided to allow output current modulation when in any mode. This is turned on when the OSCEN pin is held high. Complete control of amplitude and frequency is set by two external resistors connected to ground at pins RFREQ and RAMP (see graphs in thi……
