Microchip Technology Inc

Ultrasound Products

The Serial SuperFlash® Kit 2 allows evaluation of Microchip's Serial Flash Devices which are made using the SST SuperFlash® technology. The Serial SuperFlash Kit 2 contains three Serial Flash Daughter Boards. The Serial Flash Daughter Board is an evaluation board designed to interface with the mikroBUS™ connector on the Explorer 16/32 Development Board (DM240001-2). It can also interface with the PICtail™ Plus connector located on the Explorer 16 Development Board (DM240001).
The CW01 has 6 logic inputs; OE, CLK, DIN1, DIN2, DIN3, and DIN4. Every logic input has a 10kΩ pull down resistor. There are 3 power input voltages: VLL, VDD and VDX. VLL is the input logic level, typically 2.5V. VDD is the level translator, typically 5.0V. VDX is the gate drive voltage, and is at the same voltage level as VDD. High peak currents will be drawn from VDX during switching. Each supply has a series ferrite bead and a 0.1μF ceramic chip capacitor to keep the supply clean from high frequency noise. There are 4 outputs: HV1, HV2, HV3 and HV4. These are the connections to the drains of 100V, 7.0Ω, N-channel MOSFETs.


The AN-H59DB1 is a high voltage DC/DC converter power supply demoboard designed to provide the required voltages needed for the HV738DB1 or HV748DB1 ultrasound transmitter demo boards.

The HV7350 is a monolithic eight channel, high-speed, high voltage, ultrasound transmitter RTZ pulser. This integrated, high performance circuit is in a single, 8x8x0.9 mm, 56-lead QFN package. The HV7350DB1 is used to generate the basic high voltage pulse waveform as an ultrasound transmitting pulser.
The HV7351 demo board demonstrates Microchip's HV7351 device.  HV7351 is an 8-channel programmable high-voltage ultrasound-transmit beamformer.  Each channel is capable of swinging up to +/-70V with an active discharge back to 0V.  The outputs can source and sink up to 3.0A to achieve fast output rise time and fall times.
There are two complex programmable logic devices (CPLDs) and one serial EEPROM on the HV7351 demo board to provide multiple demo waveform patterns.   The output waveforms can be directly displayed using an oscilloscope, by connecting the oscilloscope probe to the test points TX1 - TX8 on the demo board.  The dummy load, 330 pF || 2.5K Ohm, is also provided on board for each channel.  
The HV7355 is a monolithic eight-channel, high-speed, high voltage, unipolar ultrasound transmitter pulser. This integrated, high performance circuit is in a single, 8x8x0.9mm, 56-lead QFN package. The HV7355DB1 is used to generate the basic high voltage pulse waveform as an ultrasound transmitting pulser.


The HV748DB1 is used to generate the basic high voltage pulse waveform as an ultrasound transmitting pulser. The HV748 circuit uses the DC coupling method in all level translators. There are no external coupling capacitors needed. The VPP and VNN rail voltages can be changed rather quickly, compared to a high voltage capacitor gate coupled driving pulser. This direct coupling topology of the gate drivers not only saves two high voltage capacitors per channel, but also makes the PCB layout easier.

The MD0100DB1 demo board contains four MD0100DK6-G dual packages providing 8 T/R switches in the system. There are no other external components on the board.
This demo board replaces 8 discrete diode bridge protection circuits. The input of the MD0100DB1 is called TX which is connected to the output of the transmitter, and the output is called RX which is connected to the input of the receiver. The TX and RX are interchangeable. The MD0100DB1 is especially laid out so that all the inputs are on one side and all the outputs are on other side of the board. It provides for easy replacement on the system for testing.

The MD0101DB1 demoboard contains two MD0101 packages providing eight T/R switches in the system. This demoboard replaces eight discrete diode bridge protection circuits. The input of the MD0101DB1 is called TX, which is connected to the output of the transmitter, and the output is called RX, which is connected to the input of the receiver. The clamping diodes are integrated between the RX and RGND. There is a 0Ω resistor connected between the RGND and the ground plane of the board. If external diodes are desired, the 0Ω resistor has to be removed and the external diodes can then be connected between the RX and RGND.



The MD1213DB1 can drive a transducer as a single channel transmitter for ultrasound and other applications. The demoboard consists of one MD1213 in a 12-Lead 4x4x0.9mm QFN (K6) package, combined with TC6320, an IC containing high voltage P- and N- channel FETs in a 8-Lead SOIC package.  Logic control inputs INA, INB and OE of the MD1213 are controlled via the six-pin head connector on the board. Due to the fast signal rise and fall time requirement, every ground wire of the ribbon cable must be used to connect from the logic signal source. When OE is enabled, it should recieve the same voltage as the logic source circuit’s power supply.   The MD1213DB1 output waveforms can be displayed directly using an oscilloscope by connecting the scope probe to the test point TP10-1 and TP10-2 (GND). The J5 jumper can select whether or not to connect the on-board equivalent load, a 220pF 200V capacitor paralleled with a 1.0kΩ, 1W resistor. Also, a coaxial cable can be used to easily connect to the user’s transducer.
The MD1711DB2 demoboard is as a five-level, dual-channel, +/-100V, 2.0A, return-to-zero pulser. It can directly drive two 50 or 75Ω impedance transducers for 1.0MHz to 20MHz medical ultrasound imaging or NDT applications.

The MD1711DB2 consists of one MD1711 in a 48-Lead LQFP package driving six TC6320 complementary high voltage MOSFET pairs in 8-Lead SOIC packages. The external logic signal connector, J13, connects all the input control signals of the MD1711 to the user’s logic control source via a short ribbon cable. In typical two-, three- or five-level bipolar pulsing, PW or CW waveforms can be generated by the proper input control signal listed below. Jumpers are provided for the output, such that it can drive either the on-board RC load 220pF capacitor in parallel with a 1.0KΩ resistor or with an external load of cable to the user’s ultrasound testing transducer.
The MD1715DB2 demoboard can drive two transducers as a five-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 five 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.

The MD1822DB2 is a demoboard for the three level ±100V 2.5A pulser chip-set of the MD1822 MOSFET driver and the TC6320 MOSFET. The demoboard consists of one MD1822 in a 3x3mm, 16-lead QFN package driving the TC6320, which has one pair of high speed and high voltage complimentary P- and N-MOSFETs in one 4x4mm, 8-lead DFN package. This circuit is an ideal, cost-optimized, high voltage and high current RTZ ultrasound transmit pulser.

The CPLD-programmable logic circuit (40MHz crystal oscillator) generates accurately timed high-speed waveforms on a separate CPL board. Multiple frequency and waveform combinations can be selected as bipolar pulse waveforms. An 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 five push buttons for selecting demonstration waveform, frequency, phase, and mode functions. Color LEDs indicate the demo selection states. Jumpers on the board can select either the 330pF/2.5k on-board load, or user test loads.
The MD1822DB1 is a demoboard for the three level ±100V 2.5A pulser chip-set of the MD1822 MOSFET driver and the TC7920 MOSFET. The demoboard consists of one MD1822 in the 3x3mm 16-lead QFN package driving the TC7920 which has two pairs of high speed and high voltage complimentary P- and N-MOSFETs in in one 4x4mm, 8-lead DFN package. This circuit is an ideal, cost-optimized, high voltage and high current RTZ ultrasound transmit pulser.

The CPLD-programmable logic circuit (40 MHz crystal oscillator) generates accurately timed high-speed waveforms on a separate CPL board. Multiple frequency and waveform combinations can be selected as bipolar pulse waveforms. An 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 five push buttons for selecting demonstration waveform, frequency, phase, and mode functions. Color LEDs indicate the demo selection states. Jumpers on the board can select either the 330pF/2.5k on-board load, or user test loads.
The MD1822DB3 is a demoboard for the three level ±100V 2.5A pulser chip-set of the MD1822 MOSFET driver and the TC8220 MOSFET. The demoboard consists of one MD1822 in the 3x3mm 16-lead QFN package driving the TC8220 which has two pairs of high speed and high voltage complimentary P- and N-MOSFETs in in one 4x4mm, 8-lead DFN package. This circuit is an ideal, cost-optimized, high voltage and high current RTZ ultrasound transmit pulser. The CPLD-programmable logic circuit (40 MHz crystal oscillator) generates accurately timed high-speed waveforms on a separate CPL board. Multiple frequency and waveform combinations can be selected as bipolar pulse waveforms. An 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 five push buttons for selecting demonstration waveform, frequency, phase, and mode functions. Color LEDs indicate the demo selection states. Jumpers on the board can select either the 330pF/2.5k on-board load, or user test loads.
The MD2131DB1 is to used to generate the ultrasound transmit beamforming waveform with the Gaussian profile, and the adjustable frequency, amplitude and phase angle.  The MD2131DB1 circuit uses two depletion-mode MOSFETs in the push-pull mode to drive the center tapped, wide band, ultrasound output transformer. The two depletion-mode MOSFETs are packaged in a single 5x5mm DFN package. The sources of the MOSFETs are directly driven by the MD2131’s two outputs, whose maximum peak sinking current is up to 3.0A. These current source outputs are controlled by the MD2131’s internal angular vector switch matrix and the in-phase and quadrature PWM input signals.

PLEASE CONTACT YOUR LOCAL MICROCHIP SALES OFFICE FOR DEMO BOARD AVAILABILITY.
The MD2131DB2 demoboard is to used to generate the ultrasound transmit beamforming waveform with the Gaussian profile, and the adjustable frequency, amplitude and phase angle. The MD2131DB2 circuit uses two depletion-mode MOSFETs in the push-pull mode to drive the center tapped, coupled, RF power inductor. The two depletion-mode MOSFETs are packaged in a single 5x5mm DFN package. The sources of the MOSFETs are directly driven by the MD2131’s two outputs, whose maximum peak sinking current is up to 3.0A. These current source outputs are controlled by the MD2131’s internal angular vector switch matrix and the inphase and quadrature PWM input signals.

PLEASE CONTACT YOUR LOCAL MICROCHIP SALES OFFICE FOR DEMOBOARD AVAILABILITY.
The MD2134DB1 is used to generate the ultrasound transmit beam forming waveform with the Gaussian profile, and the adjustable frequency, amplitude and phase angle. It also provides information about how to design a user application circuit and PCB using the MD2134K7 and DN2625DK6 devices.  The MD2134DB1 circuit uses a pair of depletion mode, high voltage, DN2625 MOSFETs in the push-pull mode to drive the center-tap wide band ultrasound output transformer.  The MOSFETs are in one 8-Lead DFN surface mount package.  The sources of the MOSFETs are directly driven by the MD2134’s two outputs, whose maximum peak sinking current is up to 3.3A. These current-source outputs are controlled by the MD1234’s internal current source switch array and the input signals M[3:0].

PLEASE CONTACT YOUR LOCAL MICROCHIP SALES OFFICE FOR DEMO BOARD AVAILABILITY.
The MD2134DB2 is to used to generate the ultrasound transmit beamforming waveform with the Gaussian profile, and the adjustable frequency, amplitude and phase angle. It also provides information on how to design a user application circuit and PCB using the MD2134 and DN2625 devices.  The MD2134DB2 circuit uses two depletion-mode MOSFETs in the push-pull mode to drive the coupled inductor. The two depletion-mode MOSFETs are packaged in a single 5x5mm DFN package. The sources of the MOSFETs are directly driven by the MD2134’s two outputs, whose maximum peak sinking current is up to 3.0A. These current source outputs are controlled by the MD2134’s internal array-switch of the fast PAM current sources.

The RN4677 PICtail/PICtail Plus is a Bluetooth Dual Mode development board using the Microchip RN4677 Bluetooth Dual Mode module. The RN4677 module is a Dual mode Bluetooth module that complies with Bluetooth Core Specification 4.0. The RN4677 uses a simple ASCII command interface over the UART. The board enables evaluation of the RN4677 and development of Bluetooth low Energy applications in two different ways:

1) Out of the box:  When plugged into the USB port of a PC, the board will enumerate as a Communication Device Class (CDC) Serial device.  Through a terminal program, users can configure and control the module and transfer data using the easy to use provided command set.

2) As a PICtail/PICtail Plus, the board interfaces to one of hundreds of available PIC Microcontrollers through this  standard Microchip interface.  The PICtail bridges the host MCU UART to the RN4677's UART interface for data transfer or configuration using the straight-forward, easy-to-use ASCII style command set.