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4535 612 34161 HD3 Service Manual Page 60
CSIP Level 1 Theory of Operation: Functional Description
Figure 4-1 HD3 System Functional Block Diagram
128 channel high voltage switching
32 channel TGC amplifier
32 channel to 16 channel folding and
reorder
Transducer ID
Board ID
Transducer connector assy connection
Front End
32 Channel TX pulser
16 channel A/D conversion
Synthetic Aperture
Beam Steering
Beamformer
Processes all signals from the Beamformer
board
Blood velocity and direction calculation
Generates 2D, Spectral and Color displays
I and Q data
Color filtering and calculation
Scan conversion
Routes RGB to PCC board for display
Image save (to hard drive via PCC board
Dual mode
Digital Scan Converter
Booting
3D, Sonoview
LCD interface
VGA interface
IDE interface
LAN/Ethernet interface
MIC
USB
Audio direction separation
Display: CRT & LVDS LCD
25 MHz system clock
PCC
PSA
Transducers
TCA
DSC
BF
FE
PCC
Monitor