TX73H32
32-channel, three -level transmitter with 2A pulser and integrated transmit beamformer
TX73H32
- Transmitter supports:
- 32-channel 3-level pulser and active transmit/ receive (T/R) switch
- 3-level pulser:
- Maximum output voltage: ±100V
- Minimum output voltage: ±2V
- Maximum output current: 2A
- True return to zero to discharge output to ground
- Second harmonic of –43dBc at 5MHz
- –3-dB Bandwidth with 220Ω || 220pF load
- 19MHz for a ±100V supply
- Very low receive power: 0.4mW/ch
- Active transmit/receive (T/R) switch with:
- Turn on resistance of 13Ω
- Turn on and Turn off time: 100ns
- Transient glitch: 20mVPP
- 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 2 channels
- Global repeat feature present, enabling long-duration patterns
- High-speed (400MHz maximum), 2-lane LVDS serial programming interface.
- Low programming time: ≈1µs for delay profile update
- 32-bit Checksum to detect wrong SPI writes
- Supports CMOS serial programming interface (50MHz 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 (12mm × 12mm) with 0.8mm pitch
TX73H32 is a highly integrated, high-performance transmitter device for ultrasound imaging system. The device has a total of 32 pulser circuits, 32 transmit/ receive switches (referred to 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.
TX73H32 has a pulser circuit that generates three-level high voltage pulses (up to ±100V) that is used to excite multiple channels of an ultrasound transducer. The device supports total 32 outputs. The maximum output current is 2A.
Device can be used as a transmitter for many applications like ultrasound imaging, non-destructive testing, SONAR, LIDAR, marine navigation system, brain imaging systems and so on.
Technical documentation
Type | Title | Date | ||
---|---|---|---|---|
* | Data sheet | TX73H32 3-Level, 32-Channel Transmitter with On-Chip Beamformer, T/R Switch datasheet (Rev. A) | PDF | HTML | 25 Nov 2024 |
Product overview | Optimizing the Size of Handheld Ultrasound Front-End Circuit Designs | PDF | HTML | 15 Dec 2023 | |
Application brief | Building High-Performance NDT Systems with Ultrasound Transmitters and Receivers | PDF | HTML | 04 Aug 2023 |
Design & development
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Package | Pins | CAD symbols, footprints & 3D models |
---|---|---|
FCCSP (ACP) | 196 | Ultra Librarian |
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