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.
A DDC bypass mode allows the full rate 12-bit raw ADC data to also be output. This mode of operation requires 8 lanes of serial output.
Clear advantages of the ADC12J4000 device over existing solutions currently available on the market are scalability, cost per radio path, power consumption per radio path, and flexibility.
The ADC12J4000 device is available in a 68 terminal QFN package. The device operates over the Industrial (–40°C ≤ TA ≤ 85°C) ambient temperature range.
|Analog Input BW (MHz)|
|# Input Channels|
|Sample Rate (max) (SPS)|
|Operating Temperature Range (C)|
|Folding Interpolating||Folding Interpolating||Folding Interpolating|
|-40 to 85||-40 to 85||-40 to 85|
|Sample & Buy||Sample & Buy||Sample & Buy|
|Part #||Name||Product Family||Comments|
|LMH6554||2.8 GHz Ultra Linear Fully Differential Amplifier||OPERATIONAL AMPLIFIER - HIGH SPEED AMPLIFIER||2.8 GHz ADC Driver|
|LMH6552||1.5 GHz Fully Differential Amplifier||OPERATIONAL AMPLIFIER - HIGH SPEED AMPLIFIER||1.5 GHz ADC Driver|
|LMH6521||High Performance Dual DVGA||PGA/VGA - VARIABLE GAIN AMPLIFIER||1.2 GHz DVGA|
|LMK04828||Ultra Low Jitter Synthesizer and Jitter Cleaner||Clock Jitter Cleaners - Dual / Cascaded PLL||Ultra Low Jitter Synthesizer and Jitter Cleaner|
|LMX2581||Wideband Frequency Synthesizer with Integrated VCO||Clock and Timing - RF PLLs and Synthesizers||RF Synthesizer|