Driver or library
TX73H32-DESIGN — TX73H32 design resources
The full data sheet and other design resources for this device are available here.
TX73H32
32-channel, three -level transmitter with 2A pulser and integrated transmit beamformer
Data sheet
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
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View all 3 | 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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Evaluation board
TX73H32EVM — TX73H32 evaluation module
The TX73H32 evaluation module (EVM) is used for the evaluation of TX73H32 device under various drive strength, different voltage levels and different modes of the device. The EVM contains all necessary control signals and on-board power generation, which greatly reduces the need for external (...)
Simulation tool
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PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| FCCSP (ACP) | 196 | Ultra Librarian |
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