HV7321 Series
4-Channel 5-Level, +/-80V Ultrasound Pulser with T/R Switches
Manufacturer: Microchip Technology
Catalog
4-Channel 5-Level, +/-80V Ultrasound Pulser with T/R Switches
Key Features
• * -44 dB Single-Cycle Pulse-Inversion Second Harmonic Distortion (HD2) at 5 MHz
• * Output Voltage up to ±80V
• * ±2.5A Peak Output Current
• * ±300 mA Current from VPP1/VNN1 in CW Mode-0
• * Integrated T/R Switch & RX Damper Switch
• * Bleeder Switches Achieve True Zero during RTZ
• * Supports Both Transparent and Re-Timing Mode
• * Re-Timing Clock Frequency Supports up to 220 MHz
• * Built-In Output Protection Diodes and Clamp Diodes
• * +2.5/+3.3V Input Logic Compatible
• * Built-In CW Switches to Pair with External CW Transmitters (CW Mode-1)
• * 9 mm x 9 mm 64-Lead VQFN Package
Description
AI
The HV7321 is a 4-channel, 5-level, ultrasound transmitter with built-in T/R switches, output protection diodes and clamp diodes. The HV7321 can provide up to ±2.5A and the output voltage swing can be up to ±80V. The HV7321 supports both Transparent and Re-Timing mode. The re-timing clock frequency can support up to 220 MHz. The re-timing feature helps reduce the output jitter introduced by a driving field-programmable gate array (FPGA).
The HV7321 has two different modes for CW transmission, CW-Mode 0 and CW-Mode 1. In CW-Mode 0 (Mode = 0, PWS = 0), the VPP1 and VNN1 rails are used for CW transmission. The output current is reduced in CW Mode-0. In CW-Mode 1, the HV7321 accepts the output of an external CW beamformer as the CW source. The HV7321 is LVCMOS 2.5V/3.3V input compatible, which can interface directly with an FPGA. The HV7321 is available in a 9 mm x 9 mm 64-Lead VQFN package.
