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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 鈥?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.
Three Gain select inputs (R/W, H/L, C/D) allow setting of eight gain modes and a Power
Down mode with low power consumption if H/L and C/D inputs are left floating or driven to
Hi-Z and low logic levels respectively.
The SP8064 is manufactured with an advanced 10GHz BICMOS technology.
Rev 0.He (09-26-05)
SP8064 Ten-Channel Photo detector IC
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2005 Sipex Corporation
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