ADS4122EVM ADS4122 Evaluation Module angled board image


ADS4122 12-Bit, 65-MSPS Analog-to-Digital Converter Evaluation Module


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Features for the ADS4122EVM

  • Transformer coupled analog input path
  • Amplifier path based on the THS4509
  • Configurable CMOS or DDR LVDS parallel output modes
  • Transformer coupled clock input path
  • CDCE72010 Jitter Clock Synchronizer and Jitter Cleaner clocking circuit
  • DDR LVDS output and capture ability via TSW1405EVM capture card
  • USB controlled for SPI access
  • Description for the ADS4122EVM

    The ADS4122EVM is a circuit board that allows designers to evaluate the performance of Texas Instruments‘ ADS4122 device, an extremely low power 12-bit 65 MSPS analog to digital converter. The ADC features a configurable parallel DDR LVDS or CMOS outputs. The EVM provides a flexible environment to test the ADS4122 under a variety of clock, input and supply conditions.

    The ADS4122EVM also includes Texas Instrument’s new 10 Output Low Jitter Clock Synchronizer and Jitter Cleaner device, the CDCE72010, which can be used to drive the clocking input to the ADS4122. Open sockets are provided for an external VCXO and crystal band pass filter allowing for rapid evaluation of a combined high performance ADC and clocking circuit equivalent to a final system level solution. Alternatively an external clock source can be provided to the EVM and either routed through the CDCE72010 or passed directly to the ADS4122 clock input.

    The ADS4122EVM is directly compatible to the TSW1405EVM, TI's high speed LVDS output ADC data capture card. It is also compatible with Altera and Xilinx FPGA EVMs which have FMC or HSMC connectors, via the appropriate interposer card.


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