BCM4354 Data Sheet
Table of Contents
Table of Contents
About This Document ................................................................................................................................ 16
Purpose and Audience.......................................................................................................................... 16
Acronyms and Abbreviations................................................................................................................. 16
References............................................................................................................................................ 16
Technical Support ...................................................................................................................................... 16
Section 1: Overview .......................................................................................................... 17
Overview...................................................................................................................................................... 17
Features....................................................................................................................................................... 19
Standards Compliance...............................................................................................................................20
Section 2: Power Supplies and Power Management ..................................................... 22
Power Supply Topology............................................................................................................................. 22
BCM4354 PMU Features ............................................................................................................................ 22
WLAN Power Management........................................................................................................................ 24
PMU Sequencing ........................................................................................................................................ 25
Power-Off Shutdown.................................................................................................................................. 26
Power-Up/Power-Down/Reset Circuits..................................................................................................... 26
Section 3: Frequency References.................................................................................... 27
Crystal Interface and Clock Generation ................................................................................................... 27
External Frequency Reference.................................................................................................................. 28
External 32.768 kHz Low-Power Oscillator .............................................................................................. 30
Section 4: Bluetooth + FM Subsystem Overview ........................................................... 31
Features....................................................................................................................................................... 31
Bluetooth Radio.......................................................................................................................................... 33
Transmit ................................................................................................................................................ 33
Digital Modulator ................................................................................................................................... 33
Digital Demodulator and Bit Synchronizer............................................................................................. 33
Power Amplifier..................................................................................................................................... 33
Receiver................................................................................................................................................ 34
Digital Demodulator and Bit Synchronizer............................................................................................. 34
Receiver Signal Strength Indicator........................................................................................................ 34
Local Oscillator Generation................................................................................................................... 34
Calibration ............................................................................................................................................. 34
Section 5: Bluetooth Baseband Core .............................................................................. 35
Bluetooth 4.1 Features...............................................................................................................................35
Bluetooth Low Energy ...............................................................................................................................35
Link Control Layer...................................................................................................................................... 36
Broadcom®
October 15, 2014 • 4354-DS109-R
Page 7
BROADCOM CONFIDENTIAL
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