GENERAL DESCRIPTION

NJW4702 is a laser diode driver for the operation of a grounded laser diode for CD-R and CD-RW drivers.

It includes three channels current amplifiers for three different optical power levels. Reference inputs are voltage input, and voltage control is possible without external resistors. An on-chip RF oscillator is provided to reduce laser mode noise during read mode. Oscillation frequency and oscillation amplitude are defined by two external resistors.

FEATURES

● Operating Voltage 4.5V to 5.5V

● On-chip RF Oscillator 200MHz to 500MHz

● Rise-time/Fall-time 1.0ns typ.

● Maximum Output Current 250mA typ.

● Bi-CMOS Technology

● Package Outline PCSP16(3.5mm 0.65mm pitch)