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The AD9664 is a laser diode driver for high performance CD-RW and DVD recordable drives. It includes four channels for four different optical power levels; the Read Channel generates a continuous output power level, whereas Write Channel 1, Write Channel 2, and Write Channel 3 can be used as write channels with under 0.8 ns rise/fall times. The Write channels can be controlled with an LVDS or TTL interface. The OSCEN pin is controlled by a TTL signal. All channels are summed at the selected LD output pin where Write Chanel 1 can contribute a minimum of 325 mA maximum output current, and Write Channel 2 and Write Channel 3 can contribute a minimum of 250 mA and 150 mA, respectively. The level of the output current is set by an external resistor, which converts this voltage into a current at the xSET pin.

IC LASER DRVR 4CHAN 5.5V 32LFCSP