A5191HRT

更新时间： 2024-10-29 03:16:51

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
AMIS HART⑩ Modem

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A5191HRT 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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A5191HRT_11	ONSEMI	获取价格	HART Modem
A5191HRTL	ONSEMI	获取价格	1.2kbps DATA, MODEM, PQFP32, LQFP-32
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A5191HRTLG	AMI	获取价格	Modem, 1.2kbps Data, CMOS, PQFP32, GREEN, LQFP-32
A5191HRTLG-XTD	ONSEMI	获取价格	HART Modem
A5191HRTLG-XTP	ONSEMI	获取价格	HART Modem
A5191HRTL-XTP	AMI	获取价格	Modem,
A5191HRTNG-XTD	ONSEMI	获取价格	HART Modem
A5191HRTNG-XTP	ONSEMI	获取价格	HART Modem
A5191HRTP	ONSEMI	获取价格	1.2kbps DATA, MODEM, PQCC28, PLASTIC, LCC-28