A5191HRT中文资料工业 HART 协议调制解调器数据手册ONSEMI规格书

描述 Description

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.

特性 Features

• Low power
• Optimal for intrinsically safe applications
• Bell 202 shift frequencies of 1200 Hz and 2200 Hz
• Single-chip, half-duplex 1200 bits per second FSK modem
• Transmit-signal wave shaping
• Receive band-pass filter
• Meets HART physical layer requirements
• CMOS compatible

应用 Application

• Highway Addressable Remote Transducer (HART) field instruments and masters
• Instrumentation terminals and measurement devices

简介

A5191HRT属于集成电路（IC）的调制解调器-IC模块。由制造生产的A5191HRT调制解调器 - IC 和模块接口调制解调器 IC 和模块是用于调制或解调来自电话或电缆线路的传入信号以便从计算机传输的器件。数据格式有 ASK、FSK、Bell 202、HART、V.21、V.22、V.23、V.32、V.34、V.90 和 V.92，波特率包括可选、300、1.2k、1.8k、2.4k、4.8k、9.6k、14.4k、19.2k、20k、33.6k、38.4k、56k 和 200k，安装类型有插口式、表面贴装型或通孔式。