Electronic countermeasures can utilize the GXSC ADC and clock jitter eliminator to replace the AD9689LMK04828.

Electronic countermeasures primarily employ electronic and electromagnetic wave technologies, including radar countermeasures, radio communication countermeasures, and electro-optical countermeasures. The system solution mainly consists of five components: the analog front end, digital processing, clock, battery and system power supply, and signal generation. The main workflow can be summarized as “signal reception—acquisition and quantization—signal processing—jamming transmission.” Among these, signal acquisition determines the effectiveness of subsequent signal analysis and jamming strategies, while the stability of clock synchronization is the foundation for ensuring the coordinated operation of multiple channels and modules.

The GXSC ADC converts received analog electromagnetic signals into digital signals, providing an accurate data source for downstream processing, while the jitter eliminator supplies low-jitter, high-synchronization clock signals to the ADC and other digital components in the system. Working in concert, these two components maximize the signal processing potential of the electronic countermeasures system, enhancing the equipment’s survivability and effectiveness in complex electromagnetic environments.

The GXSC ADC offers advantages such as wide input bandwidth, high sampling rates, excellent linearity, and a compact, low-power package. The dual-channel ADC core employs a multi-stage pipelined architecture and integrates on-chip digital calibration algorithms. Each ADC features a wide-bandwidth input and supports a variety of user-selectable input ranges. An integrated reference voltage source simplifies design complexity. Analog inputs and clock signals are differential inputs, and several features are available to simplify automatic gain control (AGC) in communication receivers. A programmable threshold detector allows monitoring of incoming signal power using the fast detection control bit in the ADC registers.

The GXSC high-performance clock regulator supports JEDEC JESD204B; when using the device and SYSREF clocks, the 14 clock outputs of PLL2 can be configured to drive 7 JESD204B converters or other logic devices. SYSREF can be provided via DC or AC coupling and is not limited to JESD204B applications; all 14 outputs can be individually configured as traditional high-performance clock system outputs. This chip is used in electronic countermeasures and features high performance, low power consumption, dual VCOs, dynamic digital delay, and signal loss retention, making it an ideal choice for providing a flexible, high-performance clock tree.

The stability and reliability of the GXSC clock jitter eliminator are evident in every aspect. It is fully compatible with TI’s LMK04828, uses an SPI interface for communication, and is well-suited for embedded systems and FPGA-controlled board designs. It can be widely applied in high-speed data acquisition boards, electronic countermeasures, satellite communications, high-precision timing systems, and wireless communications, providing your system with exceptional performance and a reliable clock solution.