Microchip MD1711 Manual


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Side 1/20
2019 Microchip Technology Inc. DS20005740A-page 1
MD1711
Features
Drives Two Ultrasound Transducer Channels
Generates a Five-Level Waveform
Drives 12 High-Voltage MOSFETs
±2A Source-and-Sink Peak Currents
Up to 20 MHz Output Frequency
12 V/ns Slew Rate
±3 ns Matched Delay Times
Less than –40 dB Second Harmonic
Two Separate Gate Drive Voltages
1.8V to 3.3V CMOS Logic Interface
Applications
Medical Ultrasound Imaging
Piezoelectric Transducer Drivers
Non-Destructive Testing (NDT)
Metal Flaw Detection
Sonar Transmitter
General Description
The MD1711 is a two-channel logic controller circuit
with low-impedance MOSFET gate drivers. It is
intended to be used with external FETs as a five-level
high-voltage and high-speed transmitter. The MD1711
is designed for medical ultrasound imaging
applications but can also be used for metal flaw
detection, NDT and for driving piezoelectric
transducers.
The MD1711 has two sets of control logic inputs, one
for Channel A and one for Channel B. Each channel
consists of three pairs of MOSFET gate drivers. These
drivers are designed to match the drive requirements of
the TC6320. One MD1711 drives six TC6320s. Each
driver consists of an N-channel and a P-channel
MOSFET. They are designed to have the same
impedance and can provide peak currents of 2 amps.
Package Types
48-lead LQFP
(Top view)
See Table 2-1 for pin information.
48-lead QFN
(Top view)
1
48
1
48
High-Speed Integrated Ultrasound Driver IC
MD1711
DS20005740A-page 2 2019 Microchip Technology Inc.
Functional Block Diagram
10nF
10nF
+100V
1.0µF
DVDD1
10nF
10nF
10nF
10nF
10nF
10nF
TC6320
DVDD2
AVDD1
VLL
SEL
EN
AVSS
DVSS
AGND
DGND
POSA/POS1A
CLAMPA
NEGA/NEG1A
HVEN1A/POS2A
HVEN2A/NEG2A
POSB/POS1B
CLAMP
NEGB/NEG1B
HVEN1B/POS2B
HVEN2B/NEG2B
DV
DD
1
V
SS
Piezoelectric
Transducer A
Control
Logic
and
Level
Translate
MD1711
-100V
1.0µF
+100V
1.0µF
-100V
1.0µF
+100V
1.0µF
-100V
1.0µF
+100V
1.0µF
-100V
1.0µF
DV
DD
1
DV
DD
1
DV
DD
2
DV
DD
2
DV
DD
1
DV
DD
1
V
SS
DV
DD
1
DV
DD
2
DV
DD
2
Piezoelectric
Transducer B


Produkt Specifikationer

Mærke: Microchip
Kategori: Ikke kategoriseret
Model: MD1711

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