AD5700集成電路（IC）的調(diào)制解調(diào)器-IC模塊規(guī)格書(shū)PDF中文資料

AD5700屬于集成電路（IC）的調(diào)制解調(diào)器-IC模塊。由亞德諾半導(dǎo)體技術(shù)有限公司制造生產(chǎn)的AD5700調(diào)制解調(diào)器 - IC 和模塊接口調(diào)制解調(diào)器 IC 和模塊是用于調(diào)制或解調(diào)來(lái)自電話或電纜線路的傳入信號(hào)以便從計(jì)算機(jī)傳輸?shù)钠骷?。?shù)據(jù)格式有 ASK、FSK、Bell 202、HART、V.21、V.22、V.23、V.32、V.34、V.90 和 V.92，波特率包括可選、300、1.2k、1.8k、2.4k、4.8k、9.6k、14.4k、19.2k、20k、33.6k、38.4k、56k 和 200k，安裝類(lèi)型有插口式、表面貼裝型或通孔式。

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