Table of Contents
GE
D
GB091046, R
IRECTION
5-8-2-4
Signal control
Figure 5-15 The Ultrasound Transmitter and Receiver Control Signals
DOPPLER PROBE
PROBES
DLP
DL
NOTE:
The number of cards depend on the VIVID E9 / VIVID E7 model, and options installed.
•
The Global Radio Frequency Interface (GFI) board controls the GTX (transmitter) and GRX / DRX
(analog and digital receiver boards). GFI loads all parameters to the GTX and DRX ASICs. It reads
the probe identification, selects probe connector on Relay board and controls the high voltage
multiplexer in linear probes.
In addition the GFI generates:
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-
-
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The output signals from the DRX is fed to the GFI for further signal processing. The result is transferred
via the PCI Express (PCIe) bus to the BEP for more signal processing.
2
EVISION
RELAY
BOARD
XD_BUS
the transmit trigger pulse for GTX
a receive synchronization pulse (TXTRIG_L) used by DRX
a differential ATGC voltage used by GRX
global 50 MHz and 200 MHz system clocks and Reset pulse (SRES)
Test signal / Dither signal
Probe ATGC for 3V probe
Chapter 5 - Components and functions (theory)
VIVID E9 / VIVID E7 BT'13 S
CW_BUS (RX)
DRX
GRX
FE_BUS
LVDS_BUS
FE_BUS
GTX
STA_BUS
M
ERVICE
ANUAL
PCIe BUS
TO/FROM BEP
GFI
BOARD
5 - 29
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