EL6259C中文資料Elantec數(shù)據(jù)手冊PDF規(guī)格書

General Description

The EL6259C is a low noise 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 approximately 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.

Features

? Low output noise = 4.0nA/rt-Hz

? High-performance laser diode driver

? Pin compatible with EL6257

? 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)

? Disable feature for power-up protection and power savings

? TTL/CMOS control signals

Applications

? DVD-RAM high speed drives

? CD-RW applications

? Writable optical drives

? Laser diode current switching