PDF LMX5453SM Data sheet ( Hoja de datos )

Número de pieza	LMX5453SM
Descripción	Micro-Module Integrated Bluetooth 2.0 Baseband Controller and Radio
Fabricantes	National Semiconductor
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No Preview Available ! 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 1 page

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Número de pieza	Descripción	Fabricantes
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