器件名称: EL6258C
功能描述: 3-Channel Laser Driver + Oscillator + APC Amplifier
文件大小: 135.84KB 共2页
简 介:EL6258C - Product Brief
EL6258C - Product Brief
3-Channel Laser Driver + Oscillator + APC Amplifier
Features
High-performance laser diode driver Voltage-controlled output current source requiring one external set resistor per channel Current-controlled output current source Rise time = 1.0ns Fall time = 1.1ns 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 Fast settling APC amplifier
General Description
The EL6258C is a high-performance three channel laser diode current amplifier that provides controlled current to a grounded laser diode. Channels 2 and 3 must 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. Each level of output current is set by an analog voltage applied to an external resistor which converts the voltage into a current at the IIN pins (virtually ground). The current seen at these pins is then amplified by 100X (150X on CH3) to become a current source at pin IOUT. An on-chip 500MHz oscillator is provided to allow current modulation when in the read mode. This is turned on when the OSCEN pin is held high (floating not recommended). Complete control of amplitude……
