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| ADVANCED SP8052 High Speed 12-channel Photo Detector IC FEATURES * * * * * * Dual wavelength 650 and 780nm Data channel bandwidth 140 MHz Three selectable gain settings Group delay error less than 1ns up to 86MHz 500V/us Slew rate Small 16-pin COB package Vs GND GK HL EI FJ WPP1 WPP2 1 2 3 4 5 6 7 8 SP8052 16 15 14 13 11 10 9 16-Pin COB 12 VCC Gain D C B A RF+ RF- APPLICATION * * * DVD-RAM with CD-RW capability DVD+/-RW with CD-RW capability Writable data storage optical devices GENERAL DESCRIPTION The SP8052 is a twelve-channel photo detector IC (PDIC) specially designed for high speed DVD-RAM and DVD+/-RW applications and can operate at wavelengths of 650 and 780 nm. The device contains three photo diode (sensor) arrays, with each having four sensors (A - D, E - H, and I - L respectively). The twelve channels consist of four high speed channels (A, B, C, and D), four slow channels (EI, FJ, GK, and HL), two fast channels (WPP1 and WPP2), and two channels with paraphase output (RF+ and RF-). The slow channels output is the sum of signals from two sensors of different sensor arrays (E - H and I - L). The WPP1 and WPP2 channels output is sum of signals A + B and C + D sensors respectively, but at much lower gain (than at A - D outputs) to prevent amplifier saturation in write mode. The RF channels output is sum of A + B + C + D channels with identical weights. Low noise operation enables data recovery at very low signal levels. The SP8052 has a logic input for gain control that operate as a three-state logic input (Low, Mid, and High states). These states are used to select three gain factors that affect all channels. The SP8052 is manufactured with an advanced 10GHz BICMOS technology. Rev 2.2 (12-04-03) SP8052 - High Speed 12 Channel PDIC SIPEX RESERVES THE RIGHT TO MAKE CHANGES TO THIS DATASHEET. CALL FOR UPDATES: 1-978-667-8700. SIPEX CONFIDENTIAL, ADVANCED & PROPRIETARY. DO NOT DISTRIBUTE OR COPY page 1 of 4 ADVANCED ABSOLUTE MAXIMUM RATINGS SP8052 These are stress ratings only and functional operation of the device at these ratings or any other above those indicated in the operation sections of the specifications below is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability. Supply Voltage (Vcc)..........................6.0V Input Voltage at any input....-0.6V to Vcc +0.5V Output Voltage (Vout)....................... Vcc* Storage Temperature............-40C to +100C Soldering Temperature.....................+260C** *) This Rating applies to the output of all channels **) Duration 3s maximum RECOMMENDED OPERATING CONDITIONS Supply Voltage (Vcc)........................4.75V to 5.25V Reference Voltage (Vs).....................2.2V to 2.4V Operating temperature......................-30 to +80oC Rev 2.2 (12-04-03) SP8052 - High Speed 12 Channel PDIC SIPEX RESERVES THE RIGHT TO MAKE CHANGES TO THIS DATASHEET. CALL FOR UPDATES: 1-978-667-8700. SIPEX CONFIDENTIAL, ADVANCED & PROPRIETARY. DO NOT DISTRIBUTE OR COPY page 2 of 4 ADVANCED PIN ASSIGNMENTS Pin # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Pin Name Vs GND GK HL EI FJ WPP1 WPP2 RFRF+ A B C D GAIN VCC SP8052 Pin Function Reference voltage. Bypass to GND with ceramic capacitor 0.1uF Ground pin Output of GK channel (sum of G + K sensor signals) Output of HL channel (sum of H + L sensor signals) Output of EI channel (sum of E + I sensor signals) Output of FJ channel (sum of F + J sensor signals) Output of WPP1 channel (sum of A + B sensor signals) Output of WPP2 channel (sum of C + D sensor signals) Output of RF- channel. RF- = - (A + B +C + D) Output of RF+ channel. RF+ = A + B + C + D Output of A channel Output of B channel Output of C channel Output of D channel Logic input of Gain Controller. Allows three states - low, high, and floating - Z Supply voltage. Bypass to GND with ceramic capacitor 0.1uF BOARD LAYOUT AND GROUNDING To obtain the best performance from the SP8052, a printed circuit board with ground plane is required. High quality, low series resistance ceramic 0.1uF bypass capacitors should be used at the Vcc and Vs pins (pins 1 and 16). These capacitors must be located as close to the pins as possible. The traces connecting the pins and the bypassing capacitors must be kept short and should be made as wide as possible. Rev 2.2 (12-04-03) SP8052 - High Speed 12 Channel PDIC SIPEX RESERVES THE RIGHT TO MAKE CHANGES TO THIS DATASHEET. CALL FOR UPDATES: 1-978-667-8700. SIPEX CONFIDENTIAL, ADVANCED & PROPRIETARY. DO NOT DISTRIBUTE OR COPY page 3 of 4 ADVANCED SP8052 ORDERING INFORMATION Part number SP8052 Temperature range -30 + 800C Package Type 16-pin Chip-On-Board (COB) Rev 2.2 (12-04-03) SP8052 - High Speed 12 Channel PDIC SIPEX RESERVES THE RIGHT TO MAKE CHANGES TO THIS DATASHEET. CALL FOR UPDATES: 1-978-667-8700. SIPEX CONFIDENTIAL, ADVANCED & PROPRIETARY. DO NOT DISTRIBUTE OR COPY page 4 of 4 |
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