Single-chip Bluetooth 5.2 Audio System-on-chip (SoC)
Overview
Features
Bluetooth
• Bluetooth 5.2 compliant
• Supports Basic Rate (BR), Enhanced Data Rate (EDR) 2 Mbps and 3 Mbps, and Low Energy (LE) 1 Mbps
• TX power up to +8 dBm
• RX sensitivity -95 dBm
• Bluetooth profiles: A2DP, AVRCP, HFP, HID, AVCTP, AVDTP, and SPP
• True wireless stereo and two active links
• Fast link setup and fast role switch
Core and Memory
• 32-bit MCU at up to 120 MHz
• Optional flash size: 512 KB or 1 MB
• 128 KB RAM
• 128 KB ROM
• 64 KB Cache
• 32-bit eFuse
• UART for debugging and downloading
• Charging port communication (DLP) supported
Clock Management
• External oscillator: 26 MHz crystal oscillator (X26M)
• Internal oscillator: 32 kHz ring oscillator (ROSC)
• 120 MHz PLL
Power Management
• 2.8 to 4.35 V VCC4BAT supply
• 4.75 to 5.75 V VCC5USB supply
• On-chip power-on reset (POR) and brown-out detector (BOD)
• Embedded buck (DC-DC) converter and LDO regulators
• Low power consumption:
- A2DP: 2.8 mA
- Shutdown: 0.8 μA
Peripherals
• GPIOs: 11 in QFN32, 6 in QFN20
• 1x SPI (only QFN32)
• 2x UART: 2 with hardware flow control (only QFN32), 1 with flash download support
• 1x I2C
• Up to 6x 32-bit PWM
• 120 mA battery charge controller
• 1x I2S (only QFN32)
• 2x audio ADC
• 2x audio DAC
• Four-band digital hardware equalizer
• FFT/FIR/SBC accelerator
• 12-bit SAR ADC, up to 5 channels
• 6x general-purpose 32-bit timer/counter
• 1x Watchdog timer
• 1x low-power timer
• 1x IrDA decoder interface
• 1x temperature sensor
• Up to 6x touch sensor
Packaging
• QFN32 package, 4 x 4 mm
• QFN20 package, 3 x 3 mm
• Operating temperature range: -20 to +85°C