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HV7351

Microchip
Part Number HV7351
Manufacturer Microchip
Description 3A Programmable High-Voltage Ultrasound-Transmit Beamformer
Published Sep 14, 2016
Detailed Description HV7351 8-Channel, ±70V, 3A Programmable High-Voltage Ultrasound-Transmit Beamformer Features • Eight Channels with Ret...
Datasheet PDF File HV7351 PDF File

HV7351
HV7351

Overview
HV7351 8-Channel, ±70V, 3A Programmable High-Voltage Ultrasound-Transmit Beamformer Features • Eight Channels with Return-to-Zero (RTZ) • Up to ±70V Output Voltage • ±3.
0A Output Current • Stores up to Four Different Patterns • Independent Programmable Delays • 80-lead Single 11 x 11 mm VQFN Package Applications • Medical Ultrasound Imaging • NDT, Non-Destructive Testing • Arbitrary Pattern Generator • High-Speed PIN Diode Driver Typical Application Circuit HV7351 8-channel U1 Tx1 Tx2 tDELAY1 tDELAY2 General Description The HV7351 device 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 and fall times.
The active discharge is also capable of sourcing and sinking 3.
0A for a fast return to ground.
The topology of the HV7351 will significantly reduce the number of I/O logic control lines needed.
Each pulser has four associated 64-bit shift registers for storing predetermined transmit patterns and a 10-bit delay counter for controlling the transmit time.
One of four arbitrary patterns can be transmitted with adjustable delay, depending on the data loaded into these shift registers and the delay counter.
The delay counter can be clocked up to 200 MHz, allowing incremental delays down to 5 ns.
Array Probe E1 E2 TRIG HV7351 8-channel U2 Tx3 tDELAY3 E3 HV7351 8-channel U16 Tx127 Tx128 TRIG tDELAY127 tDELAY128  2015 Microchip Technology Inc.
E127 E128 DS20005412A-page 1 VRN 21 PVDD 22 PGND 23 PGND 24 PVSS 25 VPF 26 NC 27 VNF 28 VNN 29 TX1 30 VPP 31 VPP 32 TX2 33 VNN 34 VNN 35 TX3 36 VPP 37 VPP 38 TX4 39 VNN 40 70 VPP 69 VPP 68 TX7 HV7351 Package Types (Top View) AVDD DIN2 CS2 SIZE INV CW DOUT2 EN SCK DVDD DGND TRIG TCK TCK VLL CS1 DOUT1 A0 A1 DIN1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 80 79 78 77 76 75 74 VRP PVDD PGND PGND PVSS VPF NC 73 VNF 72 VNN 71 TX8 HV...


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