PRELIMINARY

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

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

A

D

Vcc

RF+

RF-

GND

B

C

E

G

Vref

C/D

H/L

R/W

F

H

SP8064

16-Pin

FLGA

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

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.

High Speed 10-channel Photo Detector IC