器件名称: EL6255C
功能描述: 4-Channel Laser Diode Driver + Oscillator
文件大小: 133.63KB 共2页
简 介:EL6255C - Product Brief
EL6255C - Product Brief
4-Channel Laser Diode Driver + Oscillator
Features
Shrink-small package outline Voltage-controlled output current source to 150 mA per channel, requiring one external set resistor per channel Current-controlled output current source to 150 mA per channel Rise time = 1.0 ns Fall time = 1.1 ns On chip oscillator with frequency and amplitude control by use of external resistors to ground Oscillator to 500 MHz Oscillator to 100 mA 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 EL6255C is a high-performance four channel laser diode current amplifier that provides controlled current to a grounded laser diode. The four amplifiers can provide up to 150 mA per channel of DC or pulsed current. Channels 2, 3, and 4 must be used as the write channels, with switching speeds of one 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 500 MHz oscillator is provided to allow current modulation when in the read mode. Th……
