LMX5453 Datasheet, PDF (1/4 Pages) National Semiconductor (TI) – Micro-Module Integrated Bluetooth-R 2.0 Baseband Controller and Radio

February 2006
LMX5453
Micro-Module Integrated Bluetooth^®2.0 Baseband
Controller and Radio
1.0 General Description
2.0 New Features
The LMX5453 is a highly integrated Bluetooth 2.0 compliant
solution. The integrated baseband controller and 2.4 GHz
radio combine to form a complete, small form-factor (6.1 mm
x 9.1 mm x 1.2 mm) Bluetooth node.
The on-chip memory, ROM, and Patch RAM provide lowest
cost and minimize design risk with the flexibility of firmware
upgrades.
The firmware supplied in the on-chip ROM supports a com-
plete Bluetooth Link Manager and HCI with communication
through a UART or USB interface. This firmware features
point-to-point and point-to-multipoint link management, sup-
porting data rates up to 723 kbps.
The radio employs an integrated antenna filter and switch to
minimize the number of external components.
The radio has a heterodyne receiver architecture with a low
intermediate frequency (IF), which enables the IF filters to be
integrated on-chip. The transmitter uses direct IQ-
modulation with Gaussian-filtered bit-stream data, a voltage-
controlled oscillator (VCO) buffer, and a power amplifier.
The LMX5453 module is lead free and RoHS (Restriction of
Hazardous Substances) compliant. For more information on
those quality standards, please visit our green compliance
website at http://www.national.com/quality/green/
The LMX5453 is a drop in replacement for the LMX5452.
The LMX5453 has new features added:
• eSCO
• eSCO over USB HCI transport
• Enhanced scatternet
• Interlaced scan
• Flushing
• Audio PCM slave mode support
• Generic PCM configuration
3.0 Applications
• Mobile Handsets
• USB Dongles
• Stereo Headsets
• Personal Digital Assistants
• Personal Computers
• Automotive Telematics
4.0 Features
n Compliant with the Bluetooth 2.0 Core Specification
n Better than -80 dBm input sensitivity
n Class 2 operation
n Low power consumption
n Accepts external clock or crystal input:
— Clocking option 12/13 MHz with PLL bypass mode for
power reduction
— 10-20 MHz external clock or crystal network
— Secondary 32.768 kHz oscillator for low-power
modes
— Advanced power management features
n High integration:
— Implemented in 0.18 µm CMOS technology
— RF includes on-chip antenna filter and switch
n On-chip firmware with complete HCI
n Embedded ROM (200K) and Patch RAM (16.6K)
memory
n Up to 7 Asynchronous Connection Less (ACL) links
n Support for two simultaneous voice or Extended
Synchronous Connection Oriented (eSCO) and
Synchronous Connection Oriented (SCO) and links
n Enhanced scatternet
n Interlaced scan
n Flushing
n Audio PCM slave mode support
n Generic PCM configuration
n Fractional-N Sigma/Delta modulator
n Operating voltage range 2.5–3.6V
Bluetooth^® is a registered trademark of Bluetooth SIG, Inc. and is used under license by National Semiconductor Corporation.
MICROWIRE™ is a trademark of National Semiconductor Corporation.
© 2006 National Semiconductor Corporation DS201805
www.national.com