Introduction to AS3933-btst

The AS3933 is a 15-150kHz frequency range, 3-channel low-frequency wake-up receiver with automatic antenna tuning. Austin Microelectronics offers the industry's best-performing 15–150kHz frequency range, 3-channel low-frequency wake-up receiver with automatic antenna tuning.

The 3-channel low-frequency wake-up receiver AS3933 is used to implement the remote wake-up function of the battery-powered system. Not only that, AS3933 excels at 80 μVrms sensitivity,
Optimized for BOM cost and wake-up range, its 2.7 μA ultra-low current consumption also greatly extends battery life.

The AS3933's wide range of reception frequencies, from 15 to 150 kHz, enables designers to design active RFID technology, high-value asset tracking, real-time location systems, operator identification, wireless sensor networks and access control or remote keyless entry. Provides flexibility.
The AS3933 provides a digital RSSI (Received Signal Strength Indicator) value for each working channel and supports programmable data rates and Manchester decoding with clock recovery. It also includes an internal clock generator generated by a crystal oscillator or an internal RC oscillator.

And for the first time in its class, the AS3933 offers a built-in automatic antenna tuner that tune the antenna to the desired carrier frequency.

Often customers will require these features to reduce their BOM costs without compromising performance.

The programmable features of the AS3933 allow for optimal settings for longer distances while maintaining a reliable "wake-up". The sensitivity level of the AS3933 can be adjusted in a strong RF field or noise environment. Antenna tuning has been greatly simplified.
Thanks to its automatic tuning function, the required carrier frequency is perfectly matched.

Johnsy Varghese, Marketing Manager, Austrian Microelectronics Wireless Division, said: "The sensitivity of the AS3933 is higher, the input frequency range is wider, the number of relevant bits is doubled, and the built-in automatic antenna tuning function makes Austin Microelectronics continue to lead the low frequency wake-up receiver industry. In addition to the above advantages, the AS3933 maintains a low operating current of 2.7 uA and programming flexibility, making it suitable for low power systems."
The AS3933 operates from 3.0 V and operates over a temperature range of -40 to +85oC. The device is available in 16-lead TSSOP and 16-pin QFN (4 mm x 4 mm) packages.

From Allicdata Electronic