汽车类超声波信号处理器和传感器驱动器 16-TSSOP -40 to 105
The PGA460-Q1 device is a highly-integrated system on-chip ultrasonic transducer driver and signal conditioner with an advanced DSP core. The device has a complimentary low-side driver pair that can drive a transducer either in a transformer based topology using a step-up transformer or in a direct-drive topology using external high-side FETs. The device can receive and condition the reflected echo signal for reliable object detection. This feature is accomplished using an analog front-end AFE consisting of a low-noise amplifier followed by a programmable time-varying gain stage feeding into an ADC. The digitized signal is processed in the DSP core for both near-field and far-field object detection using time-varying thresholds.
The main communication with an external controller is achieved by either a time-command interface TCI or a one-wire USART asynchronous interface on the IO pin, or a CMOS-level USART interface on the RXD and TXD pins. The PGA460-Q1 can be put in ultra-low quiescent current low-power mode to reduce power consumption when not in use and can be woken up by commands on the communication interfaces.
The PGA460-Q1 also includes on-chip system diagnostics which monitor transducer voltage during burst, frequency and decay time of transducer to provide information about the integrity of the excitation as well as supply-side and transceiver-side diagnostics for overvoltage, undervoltage, overcurrent and short-circuit scenarios.
型号 | 品牌 | 下载 |
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PGA460TPWRQ1 | TI 德州仪器 | 下载 |
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PGA400Q1EVM | TI 德州仪器 | 下载 |
PGA4311UA | TI 德州仪器 | 下载 |
PGA450Q1EVM | TI 德州仪器 | 下载 |
PGA450TPWRQ1 | TI 德州仪器 | 下载 |
PGA400QYZSRQ1 | TI 德州仪器 | 下载 |
PGA400QRHHTEP | TI 德州仪器 | 下载 |
PGA4311UG4 | TI 德州仪器 | 下载 |
PGA4311U | TI 德州仪器 | 下载 |
PGA4311UAG4 | TI 德州仪器 | 下载 |