SP322

更新时间： 2024-09-25 22:42:51

品牌	Logo	应用领域
西伯斯 - SIPEX		/
页数	文件大小	规格书
14页	318K
描述
Programmable V.11/V.35 Transceiver

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SP322 数据手册

SP322

Programmable V.11/V.35Transceiver

■ +5V Only Operation

■ Programmable V.11 or V.35 Selection

■ Three Differential V.11 Transceivers in

V.11 Mode

■ Three Differential V.35 Transceivers in

V.35 Mode

■ No External Resistor Termination for

Compliant V.35 Operation

■ V.11 Cable Termination (approx. 120Ω)

Internally Configured in V.11 Mode

■ Tri-State capability on drivers and

receivers

■ Ideal low cost solution for X.25 or Frame

Relay Serial Ports

DESCRIPTION

The SP322 is a programmable V.11 or V.35 transceiver IC. The SP322 contains three drivers

and three receivers when selected in each mode. The selection is done by the V.11/V.35 select

pin. The V.11 transceivers can typically operate at 10Mbps while adhering to the ITU V.11

specifications. The V.35 transceivers can operate up to 10Mbps while adhering to the ITU V.35

specifications.

TheSP322 containsinternalresistorterminationforcompliantV.35operationaswellastheV.11

termination on the receiver inputs for optional cable termination. Each SP322 driver contains a

control pin which disables the output and places the output pins in a high impedance state. Each

receiver also has a control pin which places the receiver outputs in a high impedance state. The

enable pins will disconnect the internal termination network for whichever mode the SP322 is

selected. For the receivers, the enable pin will place the input pins in a high impedance (approx.

15kΩ). This allows for convenient DTE-DCE configuration by connecting the driver outputs to

the receiver inputs, thus allowing the enable pins to select the desired DTE or DCE operation.

V.35

WAN

EIA-530

SP322DS/06

Rev. 7/9/03

SP322 V.11/V.35 Serial Transceiver

12 3 4 5 6 7...14

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