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AN501

更新时间： 2024-11-13 22:05:43

品牌	Logo	应用领域
威世 - VISHAY		光电复用器
页数	文件大小	规格书
11页	136K
描述
The DG535/536 Wideband Multiplexers Suit a Wide Variety of Applications

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AN501

Vishay Siliconix

The DG535/536 Wideband Multiplexers

Suit a Wide Variety of Applications

Introduction

S PCM routing networks

S ATE systems

S High-channel-density multiplexing or demultiplexing systems

S High-speed multiplexing systems

Analog switch IC’s traditionally have found limited use in

applications involving high-frequency analog or digital signals.

Degradation of switch performance and intolerable signal

cross-talk between channels has undoubtedly forced many

designers to use bulky electromechanical switches or costly

discrete designs.

S Low-level signal multiplexing

At best, analog switch ICs configured in L or T arrangement could

be adopted. However, increased board space and layout

complexity became major problems in configuring systems with

high channel density.

Product Description

A functional block diagram of the DG535/536 is shown in

Figure 1 and the switch configuration is shown in Figure 2. The

device is fabricated using self-isolated, silicon-gate D/CMOS

technology. This process enables the logic interface and driver

circuitry, the gating and latching stages, and the switching

elements to be combined in a monolithic structure.

The DG535/536 are compact 16-channel, single-ended

multiplexer ICs, primarily designed as a cost-effective solution to

video and wideband switching problems. Other applications that

benefit from the devices’ superior performance characteristics

are:

Ease of design for large switching matrices and interface with

microprocessors is accomplished with comprehensive logic

gating and latching functions available on the chip.

S Digital switching

S Audio Switching

V+

GND

‘T’ Switch

Configuration

DIS

Decoders/Drivers

Gating

Logic

Latches

1st Level

2nd Level

A A

1 0

EN CS

FIGURE 1. DG535/536 Functional Block Diagram

FIGURE 2. Switch Configuration

Document Number: 70608

03-Aug-99

www.vishay.com S FaxBack 408-970-5600

6-1

12 3 4 5 6 7...11

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