Status: In Production
The HV7358 is a 16-channel, 3-level high voltage ultrasound transmitter with built-in programmable beamformer. Each channel can generate pulses up to ±80V with a T/R switch and an active discharge back to 0V circuit. The output current can be programmed for 0.3A, 0.5A, 1.0A and 1.6A.
The integrated transmit beamformer provides as fine as 5ns resolution for beamforming delays. The delay clock for beamformer is generated by a built-in low-phase-noise PLL. The HV7358 stores up to 4 sets of transmit patterns with a maximum of 256 pulses for each pattern. Alternatively, the device also allows to program PWM duty cycle for each individual channel.
The beamformer has an 8-bit divide-by-N counter to generate the CW frequency from the input clock to support continuous wave Doppler operation. Once the CW frequency and the channel delays are programmed, the CW transmission starts when the trigger signal is asserted.
200MHz SPI over differential lines provides the programming interface for the beamformer and pattern generator. The rest of the parameters are programmed through I2C. The built-in beamformer and the daisy-chainable fast SPI interface greatly reduce the number of required connections to FPGA.
The rich features of HV7358 make it particularly suitable for portable/ultraportable ultrasound imaging devices.
For datasheet, demo board and further information, please contact local Microchip sales office.
Documentation data is currently unavailable.
Development tools data is currently unavailable.
Rohs data is currently unavailable.
For pricing and availability, contact Microchip Local Sales.