SP8064

PRELIMINARY SP8064 High Speed 10-channel Photo Detector IC 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 GENERAL DESCRIPTION A1 D2 Vcc 3 RF+ 4 RF- 5 GND 6 B7 C8 E 16 G 15 Vref SP8064 16-Pin FLGA 14 13 C/D H/L 12 R/W 11 F 10 H 9 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. 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 10G...