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| 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 A D Vcc RF+ RFGND B C 1 2 3 4 5 6 7 8 SP8064 16-Pin FLGA 16 15 14 13 12 11 10 9 E G Vref C/D H/L R/W F H 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 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 10GHz BICMOS technology. Rev 0.He (09-26-05) SP8064 Ten-Channel Photo detector IC Copyright 2005 Sipex Corporation SIPEX RESERVES THE RIGHT TO MAKE CHANGES TO THIS DATASHEET. CALL FOR UPDATES: 1-408-934-7500. SIPEX CONFIDENTIAL, PRELIMINARY & PROPRIETARY. DO NOT DISTRIBUTE OR COPY page 1 of 4 PRELIMINARY GAIN MODE SELECTION Gain Mode R/W H/L C/D SP8064 Writing DVD+R 0 0 0 Writing CD-R (sample) 0 0 1 Writing CD-R (average) 0 Hi-Z 1 Writing DVD+RW 0 1 0 Writing CD-RW 0 1 1 Reading DVD-ROM 1 0 0 Reading CD-ROM 1 0/Hi-Z 1 Reading DVD+RW 1 1 0 Reading CD-RW 1 1 1 Power Down Mode* X Hi-Z 0 * If no logic inputs are applied to gain select pins, Power Down Mode is default mode. PIN ASSIGNMENTS Land # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Pin Name A D Vcc RF+ RFGND B C H F R/W H/L C/D Vref G E Pin Function Output of A channel Output of D channel Supply voltage. Bypass to GND with ceramic capacitor 0.1uF Output of RF+ channel. RF+ = A + B + C + D Output of RF- channel. RF- = - (A + B + C + D) Ground pin Output of B channel Output of C channel Output of H channel Output of F channel Mode switch input. Mode switch input. Mode switch input. Reference voltage. Bypass to GND with ceramic capacitor 0.1uF Output of G channel Output of E channel BOARD LAYOUT AND GROUNDING To obtain the best performance from the SP8064, a printed circuit board with ground plane is required. Ground pins (pin #6) should be connected to the ground plane. High quality, low series resistance ceramic 0.1uF bypass capacitors should be used at the Vcc and Vref pins (pins #3 and #14). These capacitors must be located as close to the pins as possible. A Vref decoupling capacitor to ground should be used. The traces connecting the pins to the ground plane, Vcc, Vref, and bypassing capacitors must be kept short and should be made as wide as possible. Rev 0.He (09-26-05) SP8064 Ten-Channel Photo detector IC Copyright 2005 Sipex Corporation SIPEX RESERVES THE RIGHT TO MAKE CHANGES TO THIS DATASHEET. CALL FOR UPDATES: 1-408-934-7500. SIPEX CONFIDENTIAL, PRELIMINARY & PROPRIETARY. DO NOT DISTRIBUTE OR COPY page 2 of 4 PRELIMINARY Molded FLGA 16L PACKAGE DIMENSIONS SP8064 Rev 0.He (09-26-05) SP8064 Ten-Channel Photo detector IC Copyright 2005 Sipex Corporation SIPEX RESERVES THE RIGHT TO MAKE CHANGES TO THIS DATASHEET. CALL FOR UPDATES: 1-408-934-7500. SIPEX CONFIDENTIAL, PRELIMINARY & PROPRIETARY. DO NOT DISTRIBUTE OR COPY page 3 of 4 PRELIMINARY PHOTO DETECTOR PATTERN SP8064 Note: 1. Detector size units: m 2. Separation between segments < 5 m ORDERING INFORMATION Part number SP8064CG1 0 + 700C Temperature range Package Type 16-pin Molded Flexible Land Grid Array (FLGA) Rev 0.He (09-26-05) SP8064 Ten-Channel Photo detector IC Copyright 2005 Sipex Corporation SIPEX RESERVES THE RIGHT TO MAKE CHANGES TO THIS DATASHEET. CALL FOR UPDATES: 1-408-934-7500. SIPEX CONFIDENTIAL, PRELIMINARY & PROPRIETARY. DO NOT DISTRIBUTE OR COPY page 4 of 4 |
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