Abstract: In this work, we present an open-source fully-synthesizable fractional-N all-digital phase-locked loop (ADPLL) designed for a Bluetooth low-energy (BLE) transmitter (TX) along with a ...

The Joyroom adapter plugs into your standard cigarette lighter or 12V DC auxiliary power outlet. It connects to your smartphone via Bluetooth 5.4 and converts the audio into an unused FM radio ...