Hardware
layout and configuration
UM2163
18/30
DocID030224 Rev 1
Table 4: Program 4
Pulse cancellation - HV0/1 = ±60 V; LOAD: 270 pF//100 Ω
Mode Frequency
(MHz)
Number of pulses
Initial
pulse
H-bridge
PRF
Ch A PW
2.5 - 5
3 half pulse then 4
pulse
positive
TX0 then
TX1
150
µs
Ch B PW
2.5 - 5
3 half pulse then 4
pulse
negative
TX0 then
TX1
150
µs
Ch
C
PW
5
3 half pulse then 4
pulse
positive
TX0 then
TX1
150
µs
Ch
D
PW
5
3 half pulse then 4
pulse
negative
TX0 then
TX1
150
µs
Figure 14: Acquisition by Program 4
The board can be connected to a PC via a USB cable and patterns can be edited through a
user interface.
The USB cable must be removed when a high voltage is connected to the board.
3.4
STHV748S stage
The STHV748S high-voltage, high-speed ultrasound pulser features four independent
channels. It is designed for medical ultrasound applications, but can also be used for other
piezoelectric, capacitive or MEMS transducers.
The device contains:
•
a controller logic interface circuit
•
level translators
•
MOSFET gate drivers
Содержание UM2163
Страница 17: ...UM2163 Hardware layout and configuration DocID030224 Rev 1 17 30 Figure 13 Program 4...
Страница 26: ...PCB layout UM2163 26 30 DocID030224 Rev 1 6 PCB layout Figure 23 Top layer Figure 24 Inner layer 1...
Страница 27: ...UM2163 PCB layout DocID030224 Rev 1 27 30 Figure 25 Inner layer 2 Figure 26 Inner layer 3...
Страница 28: ...PCB layout UM2163 28 30 DocID030224 Rev 1 Figure 27 Inner layer 4 Figure 28 Bottom layer...
