AD5700-1集成电路（IC）的调制解调器-IC模块规格书PDF中文资料

AD5700-1属于集成电路（IC）的调制解调器-IC模块。由亚德诺半导体技术有限公司制造生产的AD5700-1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。

GENERAL DESCRIPTION

The AD5700/AD5700-1 are single-chip solutions, designed and specified to operate as a HART® FSK half-duplex modem, complying with the HART physical layer requirements. The AD5700/AD5700-1 integrateall of the necessary filtering, signal detection, modulating, demodulating and signal generation functions, thus requiring few external components. The 0.5 precision internal oscillator on the AD5700-1 greatly reduces the board space requirements, making it ideal for line-powered applications in both master and slave configurations. The maximum supply current consumption is 115µA, making the AD5700/AD5700-1 an optimal choicefor lowpower loop-powered applications. Transmit waveforms are phase continuous 1200 Hz and 2200 Hz sinusoids. The AD5700/AD5700-1 contain accurate carrier detect circuitry and use a standard UART interface.

FEATURES

HART-compliant fully integrated FSK modem

1200 Hz and 2200 Hz sinusoidal shift frequencies

115 µA maximum supply current in receive mode

Suitable for intrinsically safe applications

Integrated receive band-pass filter

Minimal external components required

Clocking optimized for various system configurations

Ultralow power crystal oscillator (60 µA maximum)

External CMOS clock source

Precision internal oscillator (AD5700-1only)

Buffered HART output—extra drive capability

8 kV HBM ESD rating

1.71 V to 5.5 V power supply

1.71 V to 5.5 V interface

−40°C to +125°C operation

4 mm × 4 mm LFCSP package

HART physical layer compliant

UART interface

APPLICATIONS

Field transmitters

HART multiplexers

PLC and DCS analog I/O modules

HART network connectivity