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LMX5453SMX Schematic ( PDF Datasheet ) - National Semiconductor

Teilenummer LMX5453SMX
Beschreibung Micro-Module Integrated Bluetooth 2.0 Baseband Controller and Radio
Hersteller National Semiconductor
Logo National Semiconductor Logo 




Gesamt 4 Seiten
LMX5453SMX Datasheet, Funktion
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.
MICROWIREis a trademark of National Semiconductor Corporation.
© 2006 National Semiconductor Corporation DS201805
www.national.com





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LMX5453SMXMicro-Module Integrated Bluetooth 2.0 Baseband Controller and RadioNational Semiconductor
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