Texas Instruments ADC12J4000 wideband sampling and digital tuning device

The ADC12J4000 is a wideband sampling and digital tuning device. The core technology contained in the device is Texas Instruments’ gigasample 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 one to eight lanes of the serial interface.

A DDC bypass mode allows the full rate 12-bit raw ADC data to be output. This mode of operation requires eight lanes of serial output. The device is available in a 68-terminal QFN package and operates over the industrial (-40°C ≤ TA ≤ 85°C) ambient temperature range.

Advantages of the product include scalability, low cost and power consumption per radio path, and flexibility.