GENERAL DESCRIPTION

The SP8064 is a ten-channel photo detector IC (PDIC) designed for DVD and CD applications operating at wavelengths of 650 and 780 nm. The device contains three photo diode (sensor) arrays, one of them with four identical sensors A – D and the other two 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 balanced differential outputs (RF+ and RF-). Channels A through D are high bandwidth data channels, while E through H are used to generate tracking information. The RF channels output the sum of A + B + C + D channels with identical weights given to all channels.

FEATURES

• Dual wavelength 650nm and 780nm

• Data channel bandwidth 120 MHz (-3dB)

• Nine selectable gain settings

• Group delay error less than 0.5ns up to 72MHz

• 6ns settling time

• 16-pin Molded FLGA package

APPLICATION

• x16 DVD +R Read and Write

• x12 DVD +RW Read and Write

• x4 DVD Dual layer write

• X48 CD Read

• X48 CD-R Write