BCM2048 Datasheet, PDF (2/2 Pages) Broadcom Corporation. – BLUETOOTH 2.0 + EDR SINGLE-CHIP HCI SOLUTION WITH INTEGRATED FM+RDS RADIO RECEIVER

OVERVIEW
Vio
Vbat
Bluetooth
PCM
UART
BPF*
Handset
Baseband
I²C Compatible
Analog Audio
Ref_Clk, 32 kHz
Clock_req
Host_Wake
BT_Wake
FM IRQ
Rst*
BCM2048
FM
Match
Coexistence
WLAN
* For cell phone applications only
BCM2048 Block Diagram
The Broadcom BCM2048 is a monolithic 0.13 um single-chip
Bluetooth^® 2.0 +EDR compliant stand-alone baseband processor with an
integrated 2.4-GHz transceiver, integrated FM and RDS/RBDS receiver,
and an integrated FM baseband processor. It features the highest level of
integration and eliminates all critical external components, thus
minimizing the footprint and system cost of implementing a Bluetooth
and FM solution. The BCM2048 is firmware upgradeable to future
specifications.
The BCM2048 is the optimal solution for any voice and/or data
application that requires the Bluetooth SIG standard Host Controller
Interface (HCI) via a high-speed UART and PCM. The BCM2048
incorporates all Bluetooth 2.0 +EDR features including eSCO, AFH, fast
connect, all EDR packet types and lengths, and all errata. The BCM2048
also includes InConcert and other industry collaborative coexistence
solutions with WLAN systems.
The BCM2048 Bluetooth radio transceiver provides enhanced radio
performance to meet the most stringent industrial temperature
applications and the tightest integration into mobile handsets and
portable devices. It is fully compatible with any of the standard TCXO
frequencies and provides full radio compatibility to operate
simultaneously with GPS and cellular radios.
The BCM2048 also integrates a complete FM and RDS/RBDS solution.
The integrated solution saves power, external BOM, board space, and
maximizes interface flexibility over a separate Bluetooth and FM
solution. The FM subsystem can operate independently of Bluetooth and
achieve full performance while Bluetooth is operating. It is designed to
cover from 76-MHz up to 108-MHz bands (US, Europe, Japan) and to
operate from either the Bluetooth reference clock or a 32-kHz LPO input.
The FM subsystem supports a conventional BSC-compatible interfaces
and analog outputs for legacy systems, as well as digital interface
options, such as I²S and PCM. The I²S and PCM interfaces supports 48-
kHz operation and can be either master or slave. The analog interface
consists of high-quality line-level stereo DACs.
The BCM2048 FM subsystem includes advanced RDS/RBDS
capability. The BCM2048 synchronizes, demodulates, decodes RDS/
RBDS signals including CRC processing, post data filter detection,
signal quality estimation, and buffering thus making it easy for an
external application to read and process the RDS/RBDS data.
The FM radio reception performance is very high with 1 uV for 26 dB
(S+N)/N typical sensitivity and > 60 dB SNDR capability making it
easier on system integration and antenna design. The FM subsystem
includes many sought-after features including signal dependant mono/
stereo blend, soft mute, and signal bandwidth control. The system has
digital RSSI, signal quality, and IF frequency error indicators for system
monitoring. Embedded in the FM subsystem are auto search and scan
features and large RDS data buffers to improve interface complexity
with an external host.
The block diagram above illustrates how the BCM2048 can be used in a
cellular application.
Broadcom^®, the pulse logo, InConcert™, Connecting everything^®, and the Connecting everything
logo are among the trademarks of Broadcom Corporation and/or its affiliates in the United States, certain
other countries and/or the EU. Bluetooth^® is a trademark of the Bluetooth SIG. Any other trademarks or
trade names mentioned are the property of their respective owners.
®
BROADCOM CORPORATION
16215 Alton Parkway, P.O. Box 57013
Irvine, California 92619-7013
© 2006 by BROADCOM CORPORATION. All rights reserved.
2048-PB03-R
09/21/06
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
Web: www.broadcom.com