CD5954 datasheet(1/8 Pages) ETC2

Part #	CD5954

Description	Four-channel current feedback excitation drive circuit

PDF	8 Pages

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Manufacturer	ETC2 [List of Unclassifed Manufacturers]

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华晶双极电路

CD5954CB

四通道电流反馈式激励驱动电路

无锡华润华晶微电子有限公司

地址江苏省无锡市梁溪路 14 号

电话 0510-5807123-5506

传真 0510-5807123-3093

邮编 214061

网址 http://www. crhj.com.cn

电邮 apply@crhj.com.cn

第 1 页共 8 页

1. 概述与特点

CD5954 是一块四通道电流反馈式激励和马达驱动电路电路内含 2 个激励驱动器和 2 个马达驱

动器因为采用了电流反馈方式由负载电感引起的相位延迟得到改善该电路最适用于 CD-ROM

DVD 等高速驱动场合

其特点如下

动态范围大 V

OM = 4.0V

VCC = 12V PVCC1= PVCC2=5V RL = 8

内含过热保护电路

待机功能

外形封装 HSOP28

2. 功能框图与引脚说明

2. 1 功能框图

主轴马达

驱动器

循迹激励

聚焦激励

进给马达

驱动器

待机

热保护

检测放大

1234

567

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

Vcc

PVcc1

PVcc2

PGND

PreGND

PGND

PVcc1

PVcc2

Vcc

10k

20k

7.5k

10k

15k

25k

10k

7.5k

20k

10k

2

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CD5954 Datasheet(PDF) 1 Page - List of Unclassifed Manufacturers

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