The MAX9483/MAX9484 are high-performance, multimode laser diode drivers (LDDs) designed for CD and DVD combination pickup heads. The drivers feature three input channels, an RF oscillator, and two precision current amplifier outputs to drive CD and DVD laser diodes. By selecting the write control signal and the input current in the input channels, the MAX9483/MAX9484 can support a variety of CD and DVD read/write standards, such as CD-R/RW, DVD-R, DVD+R, DVD-RW, DVD+RW, and DVD-RAM. The peak total output current is 400mA, and the current gain of each channel is 100. The oscillation frequency and output amplitude can be set using external resistors. The MAX9484 also adds an external resistor pin that allows the oscillation frequency of the two outputs to be set independently. In addition, the MAX9484 can accept the write control signal in low-voltage differential signaling (LVDS) mode or single-ended mode for reliable high-speed write operation. The MAX9483 is available in a 16-pin QSOP and a 4mm x 4mm, 16-pin thin QFN package. The MAX9484 is available in a 4mm x 4mm, 20-pin thin QFN package. Both devices are rated for operation over a 4.5V to 5.5V supply and a 0°C to +70°C temperature range. ________________________________ Applications CD-RW and DVD Combination Laser Diode Drivers: CD-R/RW, DVD-R, DVD+R, DVD-RW, DVD+RW, and DVD-RAM DVD Recorders High-Power, High-Speed Laser Writer Drivers
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