BOARDCOM BCM2037

BCM2037
®
BLUETOOTH® 2.0 EDR WIRELESS AUDIO PROCESSOR
SUMMARY OF BENEFITS
FEATURES
• Single-chip Bluetooth 2.0 transceiver supporting enhanced
data rate (EDR) backward compatibility with Bluetooth 1.2
and Bluetooth 1.1
• High-performance ARM7TDMI® processor with 120 KB of
on-chip SRAM eliminating need for separate DSP
• Low-power 2.0V operation
• On-chip support for battery monitoring and charging control
• Fully configurable pulse code modulation (PCM) and I2S
interfaces with on-chip phase-locked loop (PLL) to interface
with a variety of high-quality audio codecs
• Up to 27 fully configurable GPIOs to address applications
with sophisticated user interfaces
• ZSound™ audio software package including application,
upper layer stack with profiles, and lower layer stack
• Available in 7 mm x 7 mm BGA, RoHS compliant package
with integrated RF
• Bluetooth 2.0 EDR enables:
• Lower power consumption
• Multilink stereo
• Increasingly complex Bluetooth systems
• Lower latency
• Improved robustness
• 2.0V operation:
• Longer play and talk time
• High quality:
• Near CD quality streaming stereo
• Choice of best-in-class stereo codecs
• Low cost:
• Single-chip Bluetooth transceiver
• Integrated RF, battery monitor, and charging controls
Time-to-market:
• HW reference designs for common wireless audio applications
• Includes ZSound software suite
APPLICATIONS
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Wireless headphones (stereo)
Wireless stereo headsets (stereo plus mono)
Wireless mono headsets
Wireless stereo adapters
Portable audio devices
Embedded Bluetooth application
BCM2037 Block Diagram
Flash
BCM2037
MAC
ARM7
TDMI
CPU
Bridge
I RAM
Interrupt
Controller
LPO
Radio
UART
USB
DMA
Controller
Boot ROM
LC
BRAM
I2S
PCM
ADC
MPLL
Timer
PDM
Dual LDO
SPI
Codec PLL
GPIO
OVERVIEW
AV-enabled
Cellular Phone
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Stereo Headset Solution
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8 Mb
Flash
2.0V
Button
Controls
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Battery
Management
Stereo
Codec
BCM2037
MIC
AV-enabled
PC or USB Adapter
Stereo Headset Solution
The BCM2037 wireless audio processor supports the Bluetooth 2.0
specification, with EDR technology enabling peak data rates of 3 Mbps,
while providing full backward compatibility to Bluetooth 1.2 and
Bluetooth 1.1 specifications. High integration with low-power operation
make this family of chips ideal for incorporation into high volume,
battery-operated wireless stereo and wireless mono consumer audio
applications. Used in conjunction with a high quality external stereo
codec, the BCM2037 solution delivers end-to-end streaming digital
stereo at near CD audio quality. In addition, support for the remote
control profile (AVRCP) allows a stereo headset to control a variety of
remote music sources.
The BCM2037 is capable of transmitting using EDR permitting lower
power, increased robustness, and lower latency as compared to
Bluetooth 1.2-based audio solutions. Additional bandwidth of EDR
enables complex Bluetooth environments with multiple active Bluetooth
devices and provides support for multiple simultaneous stereo links.
A stereo headset combining mono and stereo functions can be
accomplished by combining the BCM2037 with a codec that has stereo
output and MIC input. An audio gateway can be implemented by
combining the BCM2037 with a codec that has stereo outputs and stereo
inputs. A USB plug-and-play adapter can be implemented without using
a codec by using the built-in USB interface on the BCM2037.
The BCM2037 has sufficient processing performance to simultaneously
manage the user interface, maintain full Bluetooth protocol stack
operation, and execute key audio algorithms. This high performance is
enabled by a 32-bit ARM7® CPU with high-peak clock speeds and deep
on-chip memory, allowing zero-wait-state execution of computationally
intensive audio algorithms.
Key algorithms are supported by application-specific hardware
accelerators, further increasing BCM2037 computational capabilities,
while reducing system power consumption. These powerful features
eliminate the need for a separate external DSP, reducing the bill of
materials, power consumption, and total footprint.
The BCM2037 can be bundled with ZSound, a complete productionready, qualified software package including starting applications,
Bluetooth profiles, and protocol stack that facilitates time-to-market.
This complete solution makes the BCM2037 an excellent choice for a
wide variety of wireless audio applications.
Broadcom®, the pulse logo, 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.
2037-PB02-R
09/25/06
Phone: 949-450-8700
Fax: 949-450-8710
E-mail: info@broadcom.com
Web: www.broadcom.com