BK3266 Datasheet

v 0.5

© 2017 Beken Corporation

Proprietary and Confidential

Page 3 of 28

Contents

1.

General Description.................................................................................................5

1.1.

Features ..........................................................................................................5

1.2.

Applications .....................................................................................................5

2.

Pin Definition ...........................................................................................................6

3.

Functional Description ...........................................................................................12

3.1.

Overview........................................................................................................12

3.2.

Modes of Operation .......................................................................................12

3.3.

RF Transceiver ..............................................................................................12

3.4.

Bluetooth Baseband.......................................................................................13

3.5.

Audio Peripherals ..........................................................................................13

3.5.1.

5 – Band Digital Equalizer .............................................................13

3.5.2.

Stereo ADC and DAC....................................................................14

3.5.3.

Microphone Input Amplifier and Bias .............................................14

3.5.4.

Line-in Input...................................................................................14

3.5.5.

Stereo Audio L/R Outputs..............................................................15

3.6.

MCU ..............................................................................................................15

3.7.

FLASH Access Interface................................................................................15

3.8.

Beken Bluetooth Software Stack....................................................................15

3.9.

Crystal Oscillator............................................................................................15

3.10.

Power Management.......................................................................................16

3.11.

GPIO and LED Driver ....................................................................................16

3.12.

Timer and Watch Dog Timer ..........................................................................17

3.13.

PWM output ...................................................................................................17

3.14.

I2C and UART Interface.................................................................................18

3.15.

SPI Interface ..................................................................................................18

3.16.

General Purpose SAR ADC ...........................................................................18

3.17.

SDIO Card Interface and USB interface.........................................................18

3.18.

IrDA interface.................................................................................................19

3.19.

I2S interface ..................................................................................................19

4.

Electrical Characteristics .......................................................................................20

4.1.

Absolute Maximum Ratings ...........................................................................20

4.2.

Recommended Operating Conditions ............................................................20

4.3.

System LDO ..................................................................................................20

4.4.

USB LDO.......................................................................................................20

4.5.

BATTERY CHARGE ......................................................................................21

4.6.

Analog LDO/BUCK ........................................................................................21

4.7.

Digital LDO/BUCK .........................................................................................21

4.8.

Crystal and Reference Clock .........................................................................21

4.9.

Typical Power Consumption ..........................................................................22

4.10.

RF Characteristics .........................................................................................22

4.11.

Audio Characteristics .....................................................................................22

5.

About Qualification ................................................................................................23