BCM43455 Preliminary Data Sheet
Bluetooth and FM Subsystem Overview
Section 4: Bluetooth and FM Subsystem
Overview
The BCM43455 is a Bluetooth 4.1 + EDR-compliant, baseband processor with 2.4 GHz transceiver with an
integrated FM/RDS/RBDS receiver. It features the highest level of integration and eliminates all critical external
components, thus minimizing the footprint, power consumption, and system cost of a Bluetooth plus FM radio
solution.
The BCM43455 is the optimal solution for any Bluetooth voice and/or data application that also requires an FM
radio receiver. The Bluetooth subsystem presents a standard host controller interface (HCI) via a high-speed
2
UART and PCM for audio. The FM subsystem supports the HCI control interface, analog output, as well as I S
and PCM interfaces. The BCM43455 incorporates all Bluetooth 4.1 features including secure simple pairing,
sniff subrating, and encryption pause and resume.
The BCM43455 Bluetooth radio transceiver provides enhanced radio performance to meet the most stringent
mobile phone temperature applications and the tightest integration into mobile handsets and portable devices.
It provides full radio compatibility to operate simultaneously with GPS, WLAN, and cellular radios.
The Bluetooth transmitter also features a Class 1 power amplifier with Class 2 capability.
Features
Primary BCM43455 Bluetooth features include:
•
•
Supports key features of upcoming Bluetooth standards
Fully supports Bluetooth Core Specification version 4.1 + EDR features:
– Adaptive frequency hopping (AFH)
– Quality of service (QoS)
– Extended synchronous connections (eSCO)—voice connections
– Fast connect (interlaced page and inquiry scans)
– Secure simple pairing (SSP)
– Sniff subrating (SSR)
– Encryption pause resume (EPR)
– Extended inquiry response (EIR)
– Link supervision timeout (LST)
•
•
•
•
UART baud rates up to 4 Mbps
Supports all Bluetooth 4.1 + HS packet types
Supports maximum Bluetooth data rates over HCI UART
Multipoint operation with up to seven active slaves
– Maximum of seven simultaneous active ACL links
– Maximum of three simultaneous active SCO and eSCO connections with scatternet support
Broadcom®
November 5, 2015 • 43455-DS109-R
Page 34
BROADCOM CONFIDENTIAL
CYPRESS [ CYPRESS ]
