AD8349AREZRF/IF射頻/中頻RFID的RF調制器規(guī)格書PDF中文資料

AD8349AREZ屬于RF/IF射頻/中頻RFID的RF調制器。由亞德諾半導體技術有限公司制造生產的AD8349AREZRF 調制器射頻 (RF) 調制器產品用于通過更改載波的幅度、相位和/或頻率，將信息編碼到正弦載波信號上。執(zhí)行反向解調操作的接收設備會選擇性地以所需載波頻率接收傳入信號，從而將載波屬性的變化轉換回原始形式。這樣的配置允許使用通信通道來同時傳輸多條消息，而彼此之間沒有干擾。

PRODUCT DESCRIPTION

The AD8349 is a silicon, monolithic, RF quadrature modulator that is designed for use from 700 MHz to 2700 MHz. Its excellent phase accuracy and amplitude balance enable high performance direct RF modulation for communication systems.

The differential LO input signal is buffered, and then split into an in-phase (I) signal and a quadrature-phase (Q) signal using a polyphase phase splitter. These two LO signals are further buffered and then mixed with the corresponding I channel and Q channel baseband signals in two Gilbert cell mixers. The mixers’ outputs are then summed together in the output amplifier. The output amplifier is designed to drive 50 ? loads.

FEATURES

Output frequency range: 700 MHz to 2700 MHz

Modulation bandwidth: dc to 160 MHz (large signal BW)

1 dB output compression: 5.6 dBm @ 2140 MHz

Output disable function: output below –50 dBm in < 50 ns

Noise floor: –156 dBm/Hz

Phase quadrature error: 0.3 degrees @ 2140 MHz

Amplitude balance: 0.1 dB

Single supply: 4.75 V to 5.5 V

Pin compatible with AD8345/AD8346s

16-lead, exposed-paddle TSSOP package

APPLICATIONS

Cellular/PCS communication systems infrastructure WCDMA/CDMA2000/PCS/GSM/EDGE

Wireless LAN/wireless local loop

LMDS/broadband wireless access systems