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DATA SHEET
PGA460-Q1 Automotive Ultrasonic Signal Processor and Transducer Driver
1 Features
- Fully integrated solution for ultrasonic sensing
- AEC-Q100 qualified with the following results:
- Device temperature grade 2: –40°C to +105°C ambient operating temperature
- Device HBM ESD classification level 2
- Device CDM ESD classification level C4B
- 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
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