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BK3266SO16A Datasheet(PDF) 5 Page - Beken Corporation |
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BK3266SO16A Datasheet(HTML) 5 Page - Beken Corporation |
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5 / 28 page  BK3266 Datasheet v 0.5 © 2017 Beken Corporation Proprietary and Confidential Page 5 of 28 1. General Description The BK3266 is a low power, highly integrated Bluetooth system on chip (SoC) audio device. It integrates a high performance Bluetooth RF transceiver, feature rich baseband processor, FLASH memory controller, multiple analog and digital peripherals, and a Bluetooth software stack including the audio, voice, and SPP profiles. The cache based architecture enables full programmability with an SIP 8M FLASH memory device and can be used for both control and multimedia hybrid applications. The internal dual stereo ADC converts stereo analog input to digital signals that can be processed with a digital equalizer. Hardware realizations of the equalizer offload the MCU making the chip ideal for low power headset applications. The device incorporates on-chip power management with linear and switch-mode buck regulators and also includes a 220 mA internal battery charge controller to further reduce external bill of material (BOM) costs. 1.1. Features Operation voltage from 2.8 V to 4.2 V 9 mA average current for A2DP 300 uA for 500 ms sniff current 0.8 uA deep sleep current Bluetooth 4.2 classic and low energy A2DP v1.3, AVRCP v1.6, HFP v1.7, HID v1.1, AVCTP v1.4, AVDTP v1.3, and SPP v1.2 True wireless stereo and two active link Two wires UART download interface 16 bits stereo ADC and DAC Stereo line in and dual microphone Five bands digital hardware equalizer SPI, UART, I2C, SDIO and USB I2S master and slave interface with MCLK output Interface for external PA and LNA Up to 220 mA battery charge controller 1.2. Applications Bluetooth stereo speaker Bluetooth stereo headset Bluetooth control and multimedia hybrid DCO LDOs POR Charge Audio DAC Audio ADC 32 bit MCU Reset DMA EQ ADC Data RAM FLASH SPI1 BIST Bluetooth Transceiver Dual Mode 3 Timers Audio Digital Filter USB SD-Card SPI2 Always on Domain ROSC RTC Watch Dog DPLL D-Cache I2C/ UART FIR/FFT GPIO Retention Regs Temp. S IrDA 6 PWMs Figure 1. Block diagram of BK3266 Bluetooth Audio SoC |
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