LMX5453 Datasheet | National Semiconductor

Description The LMX5453 is a highly integrated Bluetooth 2.0 pliant solution. The integrated baseband controller and 2.4 GHz radio bine to form a plete, 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 plete Bluetooth Link Manager and HCI with munication through a UART or USB interface. This firmware features point-to-point and point-to-multipoint link management, supporting data rates up to 723 kbps. The radio employs an integrated antenna filter and switch to minimize the number of external ponents. 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 IQmodulation with Gaussian-filtered bit-stream data, a voltagecontrolled oscillator (VCO) buffer, and a power amplifier. The LMX5453 module is lead free and Ro HS (Restriction of Hazardous Substances) pliant. For more information on those quality standards, please visit our green pliance website at http://.national./quality/green/ 2.0 New Features The LMX5453 is a drop in replacement for the LMX5452. The LMX5453 has new features added: - e SCO - e SCO 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 puters Automotive Telematics 4.0 Features n n n n n pliant with the Bluetooth 2.0 Core Specification Better than -80 d Bm input sensitivity Class 2 operation Low power consumption 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 k Hz oscillator for low-power modes - Advanced power management...