TX7332ZBX Description
A highly integrated, high-performance transmitter for an ultrasound imaging system is the TX7332ZBX.
The system supports both on-chip and off-chip beamformers and contains a total of 32 pulser circuits (PULS), 32 transmit/receive (T/R) switches, and (TxBF). Additionally, the gadget includes on-chip floating power supplies that cut down on the amount of high voltage power supplies needed.
TX7332ZBX Features
– Delay resolution: one beamformer clock period
– Maximum delay: 2'13 beamformer clock period
– Maximum beamformer clock speed: 200 MHz
– On-chip RAM to store
– 16 delay profiles
– 32 pattern profiles
High-speed (100 MHz maximum) 1.8-V and 2.5-V CMOS serial programming interface
Automatic thermal shutdown
No specific power sequencing requirement
Small package: 260-pin NFBGA (17 mm × 11 mm) with 0.8-mm pitch
TX7332 supports:
– 32-channel three-level pulser and active transmit/receive (T/R) switch
– Very low power on-chip beamforming mode:
– In receive-only mode: 0.45 mW/ch
– In transmit-receive mode: 16.4 mW/ch
– In CW mode: 160 mW/ch
– In global power-down mode: 0.1 mW/ch
– Maximum output voltage: ±100 V
– Minimum output voltage: ±1 V
– Maximum output current: 1.2 A to 0.3 A
– Maximum clamp current: 0.5 A to 0.12 A
– Second harmonic : –45 dBc at 5 MHz
– CW mode jitter: 100 fs measured from 100 Hz to 20 kHz
– CW mode close-in phase noise: -154 dBc/Hz at 1 kHz offset for 5-MHz signal
– –3-dB bandwidth with 2-kΩ || 120-pF load
– 20 MHz (for ±100-V supply)
– 25 MHz (for ±70-V supply)
– ON, OFF control signals
– Bandwidth: 50 MHz
– HD2: –50 dBc
– Turnon resistance: 24 Ω
– Turnon time: 0.5 µs
– Turnoff time: 1.75 µs
– Transient glitch: 50 mVPP
– Jitter cleaning using synchronization feature
– Maximum synchronization clock frequency: 200 MHz
TX7332ZBX Applications
