BCM20705 Data Sheet
Table of Contents
Table of Contents
About This Document .................................................................................................................................. 8
Purpose and Audience............................................................................................................................ 8
Acronyms and Abbreviations................................................................................................................... 8
Document Conventions........................................................................................................................... 8
Technical Support ........................................................................................................................................ 8
Section 1: Overview ............................................................................................................ 9
Major Features.............................................................................................................................................. 9
Block Diagram ............................................................................................................................................ 11
Usage Model ............................................................................................................................................... 12
PC Product Usage Model...................................................................................................................... 12
Section 2: Integrated Radio Transceiver......................................................................... 13
Transmitter Path......................................................................................................................................... 13
Digital Modulator ................................................................................................................................... 13
Power Amplifier..................................................................................................................................... 13
Receiver Path.............................................................................................................................................. 14
Digital Demodulator and Bit Synchronizer............................................................................................. 14
Receiver Signal Strength Indicator........................................................................................................ 14
Local Oscillator Generation....................................................................................................................... 14
Calibration................................................................................................................................................... 14
Internal LDO................................................................................................................................................ 15
Section 3: Bluetooth Baseband Core .............................................................................. 16
Transmit and Receive Functions .............................................................................................................. 16
Bluetooth 4.1 + EDR Features................................................................................................................... 17
Frequency Hopping Generator.................................................................................................................. 17
Link Control Layer...................................................................................................................................... 17
Test Mode Support..................................................................................................................................... 18
Power Management Unit............................................................................................................................ 19
RF Power Management ........................................................................................................................ 19
Host Controller Power Management ..................................................................................................... 19
BBC Power Management...................................................................................................................... 21
Backdrive Protection ...................................................................................................................... 21
Adaptive Frequency Hopping.................................................................................................................... 22
Collaborative Coexistence......................................................................................................................... 22
Serial Enhanced Coexistence Interface ................................................................................................... 22
SECI Advantages.................................................................................................................................. 23
SECI I/O................................................................................................................................................ 23
Broadcom®
Bluetooth Transceiver and Baseband Processor
November 13, 2014 • MCS20705-DS104-R
Page 3
BROADCOM CONFIDENTIAL
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