Driver or library
TX73L64-DESIGN — TX73L64 design resources
The full data sheet and other design resources for this device are available here
TX73L64
64-channel, 3-level, 1A pulser with integrated transmit beamformer and low noise amplifier
Data sheet
TX73L64
- 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: 2.8mW/ch
- Active transmit/receive (T/R) switch with:
- Turn on resistance of 22Ω
- Turn on and Turn off time: 100ns
- 2:1 Channel Muxing to LNA input
- LNA
- Supports a maximum input swing of 500mVpp
- Gain of 24dB
- HD2 of -55 dBc and HD3 of 40dBc at 5MHz
- Programmable input impedance to match source impedance 100, 200. 400 and 800Ω with DTGC support
- 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 (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
TX73L64 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), 32 LNA circuits, and supports on-chip beamformer (TxBF). The T/R switches also perform a 2:1 multiplexing operation to multiplex inputs of 2 channels to 1 LNA. The device also integrates on-chip floating power supplies that reduce the number of required high voltage power supplies.
TX73L64 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 device 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 | TX73L64 3-Level, 64-Channel Transmitter with On-Chip Beamformer, T/R Switch, 32- Channel Multiplexed Receivers with LNA datasheet | PDF | HTML | 29 Apr 2025 |
| User guide | TX73L64 Evaluation Module User's Guide | 28 Apr 2025 | ||
| Certificate | TX73L64EVM EU Declaration of Conformity (DoC) | 28 Feb 2025 |
Design & development
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Evaluation board
TX73L64EVM — TX73L64 evaluation module
The TX73L64EVM is used for the evaluation of TX73L64 device under various drive strength, different voltage levels and different modes of the device. The evaluation module contains all necessary control signals and onboard power generation, which reduces the need for external equipment. The (...)
User guide: PDF
Simulation tool
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
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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