SP8042 查看數據表（PDF） - Signal Processing Technologies

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SP8042

7 Channel Photo Detector IC

Signal Processing Technologies 

®

Preliminary

SP8042

7 Channel Photo Detector IC

FEATURES

■ Dual Wave length 650 and 780nm

■ 55MHz Data Channel Bandwith

■ Built-in Media Switch

■ Available in Wafer Form or 5.0 x 4.0mm

16 Pin COB Package

APPLICATIONS

■ DVD Player

Bb 1

Aa 2

SW 3

RF 4

NC 5

Dd 6

Cc 7

NC 8

SP8042

16 Pin COB

16 GND

15 NC

14 E

13 VCC

12 VS

11 NC

10 F

9 GND

DESCRIPTION

The SP8042 is a seven channel photo detector IC (PDIC) designed for DVD-ROM and CD-ROM

applications and can operate at wavelength of 650 and 780 nm. The device contains four photo

diode (sensor) arrays, two of them with four identical sensors (A – D, and a - d respectively) and

two with a single sensors (E, F). The seven channels consist of four high speed channels (Aa,

Bb, Cc, and Dd), two slow channels (E, F), and one RF channel. The high speed channel output

provides a signal from one of the two different sensor arrays (A – D or a – d) depending the position

of the media switch (SW). A high logic level at the SW pin selects CD mode (A – D sensors) while

a low level selects DVD mode (a – d sensors). The E and F channels output is used for a servo

control. The RF channels output is sum of A + B + C + D or a + b + c + d channels (depending

upon SW level) with identical weights given to all channels.

Low noise operation enables data recovery at very low signal levels.

The SP8042 is manufactured with an advanced 10GHz BICMOS technology.

Rev. 9/25/03

SP8042 7 Channel, PDIC

1

© Copyright 2003 Sipex Corporation

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