GENERAL DESCRIPTION

The SP8043 is a ten-channel photo detector IC (PDIC) designed for DVD and CD applications and can operate at wavelength of 650 and 780 nm. The device contains three photo diode (sensor) arrays, one of them with four identical sensors A – D and others with two sensors (E, F and G, H respectively). The ten channels consist of four high speed channels (A, B, C, and D), four slow channels (E, F, G, and H), and two RF channel with paraphase output (RF+ and RF-). The high speed channel output provides a signal from one of the sensors A – D. The E, F, G, and H channels output is used for servo control. The RF channels output is the sum of A + B + C + D channels with identical weights given to all channels.

FEATURES

? Dual wavelength 650 and 780nm

? 55MHz Data channel bandwidth (-1db point)

? Selectable gain and Power Down Mode

? Available in wafer form, 16-pin Clear-mold FlatPack (CFP) package, or 16-pin Flexible Land Grid Array (FLGA)

APPLICATION

? x4 DVD + R Read and write

? x2.4 DVD Dual layer write

? x4 DVD + RW Write

? x8 CD Read