PGA460 Description
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 plimentary low-side driver pair that can drive a transducer either in a transformer based topology using a step-up transformer or in a directdrive topology using external high-side FETs. The device can receive and condition the reflected echo signal for reliable...
PGA460 Key Features
- Fully integrated solution for ultrasonic sensing
- plimentary low-side drivers with configurable
- 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 envel
- 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