1 Features
• Transmitter supports:
– 64-channel 3-level pulser and active transmit/
receive (T/R) switch
• 3-level pulser:
– Maximum output voltage: ±100V
– Minimum output voltage: ±1V
– Maximum output current: 1A
– True return to zero to discharge output to
ground
– Second harmonic of –40dBc at 5MHz
– –3-dB Bandwidth with 400Ω || 125pF load
• 22MHz for a ±100-V supply
– Very low receive power: 0.1 mW/ch
• Active transmit/receive (T/R) switch with:
– Turn on resistance of 26Ω
– Turn on and Turn off time: 100ns
– Transient glitch: 10mVPP
• On-chip beam former with:
– Channel based T/R switch on and off controls
– Delay resolution: half beamformer clock period,
minimum 2.5ns
– Maximum delay: 214 beamformer clock period
– Maximum beamformer clockspeed: 200MHz
– On-Chip RAM for pattern and delay profile
– One 512 × 32 memory to store beam-former
pattern and delay for a group of 4 channels
– Global repeat feature present, enabling long
duration patterns
• High-speed (400 MHz maximum), 2-lane LVDS
serial programming interface.
– Low programming time: ≈2.5 us for delay profile
update
– 32-bit Checksum to detect wrong SPI writes
• Supports CMOS serial programming interface (50
MHz maximum)
• High reliability features:
– Internal temperature sensor and automatic
thermal shutdown
– No specific power sequencing requirement
– Error flag register to detect faulty conditions
– Integrated passives for the floating supplies and
bias voltages
– Small package: FC-BGA-196 (12 mm × 12 mm)
with 0.8-mm pitch

2 Applications
• Ultrasound imaging system
• Piezoelectric driver
• In-probe ultrasound imaging

3 Description
TX7364 is a highly integrated, high-performance
transmitter device for ultrasound imaging system.
The device has total 64 pulser circuits, 64 transmit/
receive switches (referred as T/R or TR switches) and
supports on-chip beamformer (TxBF). The device also
integrates on-chip floating power supplies that reduce
the number of required high voltage power supplies.
TX7364 has a pulser circuit that generates three-level
high voltage pulses (up to ±100 V) that is used to
excite multiple channels of an ultrasound transducer.
The device supports total 64 outputs. The maximum
output current is 1A.
Device can be used as a transmitter solution for many
applications like ultrasound imaging, non-destructive
testing, SONAR, LIDAR, marine navigation system,
brain imaging systems and so on.