Microchip Technology ADM00732, Руководство пользователя

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HV7358DB1 User’s Guide
DS50002951A-page 12
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2020 Microchip Technology Inc.
1.4 FUNCTIONAL DESCRIPTION
The HV7358DB1/MUPB002 combination demonstrates a 16-channel, 3-level, ±80V,
1.6A ultrasound transmit beamformer. Features include T/R switches with RX damping
switch, diode clamps to V
PP
and V
NN
and programmable TX current limit, and internal
voltage regulators to generate the required gate drive voltages. The HV7358 is a
high-voltage, monolithic IC packaged in a 13x13 mm, 168-lead TFBGA package.
The HV7358 is applicable to medical ultrasound as well as NDT applications.
Both the HV7358DB1 and the MPUB002 boards are required. They are connected
together by two high-speed, impedance matched, right-angle, backplane connectors.
The HV7358DB1 contains the HV7358, LED indicators for the logic signals, and a
transimpedance amplifier to emulate an LNA and an LDO. The MUPB002 contains the
USB interface and an FPGA.
Each TX output has a 330 pf||2.5K load, which requires a shorting connector to be
attached; without the connector, the output will be open.
The 200 MHz clock retiming provides low jitter in CWD, PW or B mode. The clock
synchronization realigns the logic input signals to the master clock, which reduces
various propagation delays caused by FPGA output jitter.
An SPI EEPROM on the HV7358DB1 Demonstration Board is for MUPB002 and PC
GUI software to automatically identify the demonstration board ID.
All of the 16 TX outputs are accessible at test points on the HV7358DB1. There are also
four SMA connectors on the board that can be connected to the TX outputs via jumper
shorting plugs.
The output of any of the T/R switches can be connected to the on-board
transimpedance amplifier (U4). This is done via a jumper shorting plug. The amplifier
output is available at an SMA connector (J13).
1.5 WHAT THE HV7358DB1 ADM00732 KIT INCLUDES
The HV7358DB1 includes:
• HV7358DB1 ADM00732 Evaluation Board
• Important Information Sheet