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PGA460TPW PGA460TPWR 有现货 可添加我们联系方式获取最优惠价格
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描述
The PGA460 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 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 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.
特性
Fully Integrated Solution for Ultrasonic Sensing
Complimentary Low-Side Drivers With Configurable Current Limit Supporting Both Transformer Based and Direct Drive Topology for Transducer Excitation
Single Transducer for Both Burst/Listen or a Transducer Pair, One for Burst and the Other for Listen Operation
Low-Noise Receiver With Programmable 6-Point Time-Varying Gain (32 to 90 dB) With DSP (BPF, Demodulation) for Echo Envelope Detection
Two Presets of 12-Point Time-Varying Threshold for Object Detection
Timers to Measure Multiple Echo Distance and Duration
Integrated Temperature Sensor
Record Time for Object Detection up to 11 m
128 Bytes of RAM for Echo Recording
42 Bytes of User EEPROM to Store Configuration for Fast Initialization
One-Wire High-Voltage Time-Command Interface or USART Asynchronous Interface
CMOS Level USART Interface
Sensor Diagnostics (Decay Frequency and Time, Excitation Voltage), Supply, and Transceiver Diagnostics.
深圳市烨弘轩电子有限公司，我司2011年成立于中国经济特区深圳.我司专注于为全球电子企业提供优质的电子零件供应服务，竭力打造全球品牌元器件零售与批量供应中心。专业经营各类电子元器件（集成电路IC，存储芯片，分立器件,电源,无源元件,连接器,继电器,传感器,光电子,开关,保险元件,紧固件,开发工具,变压器,测试与测量等）。 我们以低成本提供全方位一站式电子元件供应链采购方案，包括但不仅限于电子元件紧急物料搜寻，电子元件齐套供应、电子元件降低成本的长期供应，库存寄售等一系列供应链解决方案。优势供应各类电子组件.
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公司服务宗旨：客户虐我千百遍，我待客户如初恋。
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我司所售物料 可提供样品 批量 方案 技术资料 技术支持。所有物料都是 原厂原包原标原装，每一片都来自正规渠道，每一片都可追溯。
