TI ADC12J4000 12位4GSPS取样模数转换解决方案
TI公司的ADC12J4000是低功耗12位4GSPS RF取样模数转换器(ADC),具有JESD204B接口,输入高于2.7GHz时有极好的噪音和线性度,最大取样速率4000MSPS,DDC输出字宽15位复数(总数30位),噪音水平－149 dBFS/Hz或－150 dbm/Hz,主要用在多标准3G和4G通信系统,RF取样SDR,宽带微波骨干网,军用通信, SIGINT, RADAR和LIDAR以及宽带通信系统, 测试测量.本文介绍了ADC12J4000主要特性, ADC12J4000框图以及评估板ADC12J4000EVM主要特性.测试框图,电路图,材料清单和PCB元件布局图.
The ADC12J4000 device is a wideband sampling and digital tuning device. The core technology contained in the device is Texas Instruments’ giga-sample analog-to-digital converter (ADC) technology that enables a large block of frequency spectrum to be sampled directly at RF. This technology is combined with low-power digital-processing blocks that provide digital filtering and down-conversion.The selected frequency block is made available on a JESD204B serial interface that is compatible with downstream system-processing elements. Data is output as baseband 15-bit complex information for ease of downstream processing. Based on the digital down-converter (DDC) decimation and link output rate settings, this data is output on 1 to 8 lanes of the serial interface.
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