5 – 18 HS40 Service Manual
5.4.3.1. Specification
• Focused RF Data Interface
• BW Data Processing
• Spectral Doppler Data Processing
• Color Doppler Data Processing
• Digital Signal Processing (Pre Processing, Post Processing)
• CW IQ data Interface (CWD)
• Direct Memory Access
• 3D Probe Motor Driver
• Diagnostic Signal Processing
• RTC (Real Time Controller)
• PCI-express Interface
5.4.3.2. Digital Signal Processing (DSP) Part
The Back End Board’s MID FPGA (KINTEX325T) consists of the Digital Signal Processing Part,
which transforms the Focused RF Data input by the BF Board into Base-Band IQ Data.
The RF Data input goes through the Gain Control, High-Pass Filtering, Quadrature
Demodulation, and Decimation processes and then is sent to the DMA FPGA so that the Base-
Band IQ Data can be transmitted to the PC SW Module.
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