Microchip MD1715DB2 Manual

Microchip Ikke kategoriseret MD1715DB2

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Supertex inc.
Supertex inc.
www.supertex.com
MD1715DB2
Doc.# DSDB-MD1715DB2
A032713
General Description
The MD1715DB2 demoboard can drive two transducers as
a ve-level, two channel transmitter for ultrasound and other
applications.
The demoboard consists of one MD1715 in a 6x6mm 40-lead
QFN package driving 12 high voltage FETs in six TC8020s in
one 8x8mm 56-lead QFN package. The CPLD programmable
logic circuit 40MHz crystal oscillator generates accurate
timing high-speed waveforms on a separate CPL board. There
are multiple frequencie and waveform combinations that
can be selected as bipolar pulse waveforms. External clock
input can be used if the on board oscillator is disabled. The
external trigger input can be used to synchronize the output
waveforms. There are ve push buttons for selecting the
demo waveform, frequency, phase, mode selection functions.
Color LEDs indicate the demo selection states. Jumpers on
board for select the SMA connector to the external loads or
the 220pF//1k on board dummy load.
Block Diagram
MD1715+TC8020 Demoboard
High Speed ±100V 3.2A Pulser
Features
►Demo dual-transducer ultrasound transmitter
►MD1715 driving TC8020 with 12 MOSFETs
►5-level voltage pulse waveforms outputs
►±3.2 A source and sink current capability
►100MHz frequency clock on board
►Programmable logic waveform generation
►JTAG connection for CPLD programming
►SMA connectors for external clock and signals
►1.8 to 3.3V CMOS logic interface
Applications
►Medical ultrasound imaging
►Ultrasonic NDT detection
►Piezoelectric transducer drivers
►Capacitive and MEMS sensor driver
►Material aw detection
►ATE and waveform generator
V
NN
2
V
DD
2
High Speed
Gate Buffers
GN2
SP1
SN1
DP1
100Ω
DN1
SP2
SN2
DP2
DN2
DP3
DN3
Control
Logic and
Level
Translation
VLL/EN
SEL
POS
NEG
GND
ON2
SN3
SP3
MD1715
1 of 2 channels
TC8020
6 of 12 FETs
-12V
VSSAVSSGND PAD
V
DD
2
V
DD
1
V
DD
1
V
DD
1
V
SS
GP2OP2
GN1ON1
GP1OP1
GN3
ON3
GP3OP3
V
PP
1
V
PP
2
V
NN
1
High Speed
Gate Buffers
-12V
VSUBPAD
-100V
+12V
VDD 1AVDD VDD2
+12V +12V
2
Supertex inc.
www.supertex.com
MD1715DB2
Doc.# DSDB-MD1715DB2
A032713
MD1715/+TC8020DB2 Schematic Block Diagram
Waveform
Generator
CPLD
OSC
6
JTAG
EXCLK
EXT
CLKIN
100MHz
DGNDAGND
VD VDD2 D1AVDD
EXTRG
EN J17/18
Logic
C l dontro an
Level
Translation
MD1715
(1 2 O of I/ channels shown)
+5.0V +12V+12V
-12V
AVSS (SUB)
VSS
VLL/EN
SELA
POSA
NEGA
SELB
POSB
NEGB
5
WAVE
FREQ
SEL
CLMP
ENAB
LED1
LED2
PWR
ENA
MOD
+3.3V
MD1715+TC8020DB2 Demo Board PCB Layout
Actual size: 100mm x 60mm

Produkt Specifikationer

Mærke: Microchip
Kategori: Ikke kategoriseret
Model: MD1715DB2

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