A5191HRTP-XTD

更新时间： 2024-10-29 13:05:19

品牌	Logo	应用领域
AMI		调制解调器
页数	文件大小	规格书
11页	582K
描述
Modem,

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技术参数
数据手册

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A5191HRTP-XTD 技术参数

生命周期：	Transferred	Reach Compliance Code：	unknown
风险等级：	5.56	Is Samacsys：	N
Base Number Matches：	1

A5191HRTP-XTD 数据手册

Data Sheet

A5191HRT AMIS HART™ Modem

1.0 Features

• Can be used in designs presently using the SYM20C15

• Single-chip, half-duplex 1200 bits per second FSK modem

• Bell 202 shift frequencies of 1200Hz and 2200Hz

• 3.3V - 5.0V power supply

• Transmit-signal wave shaping

• Receive band-pass filter

• Low power: optimal for intrinsically safe applications

• CMOS compatible

• Internal oscillator requires 460.8kHz crystal or ceramic resonator

• Meets HART physical layer requirements

• Industrial temperature range of -40°C to +85°C

• Available in 28-pin PLCC and 32-pin LQFP packages

2.0 Description

The A5191HRT is a single-chip, CMOS modem for use in highway addressable remote transducer (HART) field instruments and masters. The modem and

a few external passive components provide all of the functions needed to satisfy HART physical layer requirements including modulation, demodulation,

receive filtering, carrier detect, and transmit-signal shaping. The A5191HRT is pin-compatible with the SYM20C15. See the Pin Description and Functional

Description sections for details on pin compatibility with the SYM20C15.

The A5191HRT uses phase continuous frequency shift keying (FSK) at 1200 bits per second. To conserve power the receive circuits are disabled during

transmit operations and vice versa. This provides the half-duplex operation used in HART communications.

Figure 1: 28-Pin PLCC Pinout Diagrams (green & non-green)

Figure 2: 32-Pin LQFP Pinout Diagrams (green & non-green)

AMI Semiconductor - Rev. 2.0, Mar. 05

www.amis.com

12 3 4 5 6 7...11

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