CSR8645

CSR8645 ↔ BES2300

CSR8645: BT 4.1 Audio SoC, 80MHz MCU, stereo codec, cVc NR. BES2300-YP: highly integrated BT 5.2 ANC platform. Dual-core Cortex-M4F @300MHz. 4MB serial flash on-chip. Features: FF/Hybrid ANC, dual MIC noise reduction, IBRT (Intelligent Bluetooth Retransmission) for TWS. Audio DAC: 120dB SNR, 110dB DNR (8kHz-384kHz). Audio ADC: 100dB SNR. Power: phone call 6mA, music 5-5.5mA, power off 3uA. Key difference: BES2300 uses proprietary SDK (BES SDK), NOT compatible with Qualcomm ADK. Requires complete firmware rework. Security boot protects custom IP. Package: 4.5x6.2mm 80-ball BGA.