器件名称: EL6274CU
功能描述: 4-Ch Laser Diode Driver Oscillator
文件大小: 133.69KB 共2页
简 介:EL6274C - Product Brief
EL6274C - Product Brief
4-Ch Laser Diode Driver + Oscillator
Features
Shrink Small Outline Package Voltage-controlled output current source of 140mA per channel, requiring one external set resistor per channel Current-controlled output current source of 140mA per channel Rise time = 3.0ns Fall time = 3.5ns 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%) Current amplification = 100 Disable feature for power-up protection and power savings TTL/CMOS control signals
General Description
The EL6274C is a four channel laser diode current amplifier that provides controlled current to a grounded laser diode. The four amplifiers can provide 140mA per channel of DC or pulsed current. Channels 2, 3, and 4 should be used as the write channels, with switching speeds of approximately three nanosecond rise/fall time. All four 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 by 100X 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 ……
