bcm2049 Broadcom Corp., bcm2049 Datasheet - Page 2

• Manufacturer Part Number: bcm2049
• Description: Single-chip Bluetooth 2.1 + Edr With Integrated Fm Transceiver
• Manufacturer: Broadcom Corp.

The Broadcom
devices, such as mobile handsets and media players, that require
Bluetooth and FM receiver/transmitter functionality. At the software
layer, the BCM2049 is backward-compatible with Broadcom’s
Bluetooth + FM device family, which includes the BCM20780 and
BCM2048.
The BCM2049 Bluetooth
consumption and minimal external bill of materials, while maintaining
high receiver sensitivity and up to +10 dBm of transmit output power.
The Bluetooth core is fully Bluetooth 2.1 + EDR compliant.
SmartAudio
by supporting packet loss concealment and wideband speech. In
conjunction with Broadcom’s BTE-Mobile software stack, the
BCM2049 supports multiple simultaneous Advanced Audio Distribution
Profile (A2DP) streams, enabling music sharing between several stereo
Bluetooth headsets.
The BCM2049 includes a feature-rich FM transmitter core that supports
programmable transmit frequencies between 76 and 108 MHz to cover
worldwide bands. The FM transmitter core has an on-chip, high-output
power amplifier with power control, making it possible to optimize FM
transmit output power and at the same time complying with US and
European regulatory requirements.
The FM transmit function also benefits from the SmartAudio technology
built into the BCM2049, such as flexible rate matching, polyphonic tone
Broadcom
the trademarks of Broadcom Corporation and/or its affiliates in the United States, certain other countries
and/or the EU. Any other trademarks or trade names mentioned are the property of their respective
owners.
BROADCOM CORPORATION
5300 California Avenue
Irvine, California 92617
© 2009 by BROADCOM CORPORATION. All rights reserved.
2049-PB05-R
®
, the pulse logo, Connecting everything
XTAL or TCXO
®
technology has also been added to enhance voice quality
32 kHz LPO
®
04/24/09
BCM2049 is a cost-effective solution for portable
Bluetooth
Antenna
Reset
VBAT
GPIO
VDD
®
core is optimized for low current
®
ROM
REG
POR
OSC
LPO
®
32-bit CPU
Bluetooth
, and the Connecting everything logo are among
RF
RAM
PMU
®
BCM2049 Block Diagram
CPU Subsystem
SmartAudio
Technology
O V E R V I E W
Bluetooth
Baseband
Bus Matrix
®
®
generation and mixing, and audio dynamic range control. The FM
transmitter core can take its input audio data from stereo line-level
analog inputs, an I
the generation of a continuous Radio Data System (RDS) data stream,
the BCM2049 also includes a flexible RDS and Radio Broadcast Data
System (RBDS) transmit preprocessor.
The BCM2049’s FM+RDS/RBDS receiver core supports frequencies
down to 65 MHz for the Eastern European OIRT band and use with an
internal or external FM antenna. By supporting the internal FM antenna,
the BCM2049 makes it possible to listen to FM radio over Bluetooth
headsets without requiring an additional antenna attachment.To reduce
system current consumption when operating in this mode, the BCM2049
has an on-chip, Subband Codec (SBC) encoder. The SBC encoder
compresses the received FM audio signal into A2DP packets, without
host intervention. The BCM2049 also supports FM recording with on-
chip MP3 encoding.
Applying Broadcom's experience in real-world FM broadcast receiver
environments, the BCM2049 employs advanced FM search algorithms.
To minimize the printed circuit board (PCB) footprint and lower system
cost, all external components related to the FM VCO are integrated into
the BCM2049. The BCM2049 is available in a space-saving 0.4 mm ball
pitch WLBGA package for either chip-on-board or module applications.
A 0.5 mm ball pitch BGA package is also available.
COEX Support
FM+RDS
FM+RDS
Host Interface
RX
TX
2 x ADC
2 x DAC
2
S port, or a host interface control port. To simplify
FM RF
Analog Audio In
FM Tx Antenna
FM Rx Antenna
Analog Audio Out
UART (H4, H5)
PCM/I
I
SDIO
SPI
BSC (I
WLAN/WIMAX COEX
2
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
Web: www.broadcom.com
S
2
2
S
C-Compatible)