The AC6959A isa high-performancelow-power Bluetooth chip from Zhuhai Jieli, featuring several remarkable characteristics. Its core is a high-performance 32-bit DSP with FPU support, capable of operating at frequencies from DC to 240MHz, equipped with 64 vector interrupts and 4 levels of interrupt priority. The I/O is flexible, with 6 GPIO pins, each of which can be individually programmed as input or output, and can independently select internal pull-up or pull-down, providing CMOS/TTL level Schmitt trigger inputs. All GPIO pins can achieve external wake-up or interrupts. The peripheral functions are rich, including a full-speed USB 2.0 OTG controller, four multifunctional 16-bit timers supporting capture and PWM modes, three 16-bit PWM generators for motor drive, one full-duplex basic UART, two full-duplex advanced UARTs, one IIC interface supporting both host and device modes, an orthogonal decoder, a watchdog, one crystal oscillator, a 16-bit differential DAC with a headphone amplifier and a signal-to-noise ratio of no less than 95dB, a single-channel MIC amplifier, a 4-channel 10-bit ADC, and a 2-channel 8-level low voltage detector. It also features a power-on reset function, and the embedded PMU supports low-power modes. In terms of Bluetooth features, it is a CMOS single-chip fully integrated radio and baseband, compliant with Bluetooth V5.1+BR+EDR+BLE specifications, supporting Bluetooth Piconet and Scatternet, meeting class 2 and class 3 transmission power requirements, supporting all packet types of GFSK and π/4 DQPSK, providing +6dBm transmission power, with a receiver sensitivity of -90dBm, and supporting profiles such as a2dp, avctp, avdtp, avrcp, hfp, spp, smp, att, gap, gatt, rfcomm, sdp, and l2cap. Regarding power supply, the VBAT voltage range is from 2.2V to 5.5V, and the VDDIO voltage range is from 2.2V to 3.6V, packaged in SOP16, with an operating temperature range of -20℃ to +70℃ and a storage temperature range of -65℃ to +150℃.
