ADI AD9122高速DAC和ADL5373 I-Q调制器接口解决方案
ADI公司的AD9122是双路高动态范围的高速DAC,取样速率1230MSPS,灵活的LVDS接口, 122.88 MHz IF的单载波WCDMA ACLR为82dBc, RL = 25 Ω to 50 Ω时的模拟输出从8.7 mA 到31.7 mA可调,集成了2x/4x/8x内插/复数调制器,使得载波可放置在DAC带宽内任何地方, 1.2 GSPS的功率为1.5W, 500 MSPS的功耗为800mW,主要用在无线基础设备, W-CDMA, CDMA2000, TD-SCDMA, WiMAX, GSM, LTE和宽带通信如LMDS/MMDS,点对点通信,数字高或低IF合成.本文介绍了AD9122主要特性, 功能方框图, AD9122评估板以及AD9122高速DAC和ADL5373 I-Q调制器接口解决方案,包括接口电路, AD9122-M5375-EBZ评估板电路图和材料清单.
Interfacing the ADL5375 I/Q Modulator to the AD9122 Dual Channel, 1.2 GSPS High Speed DAC
The AD9122 is a dual, 16-bit, high dynamic range digital-to- analog converter (DAC) that provides a sample rate of 1230 MSPS, permitting multicarrier generation up to the Nyquist frequency.
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