LMX5452 Datasheet | National Semiconductor

Description The LMX5452 is a highly integrated Bluetooth 1.2 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 baseband controller has a standard Host Controller Interface (HCI). Based on the National Semiconductor pact RISCTM 16-bit processor, the LMX5452 is optimized to handle the audio, data, and link management processing requirements of a 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 LMX5452 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/ 3.0 Features n n n n pliant with the Bluetooth 1.2 Core Specification -80 d Bm receiver sensitivity (typical) Class 2 operation Low power consumption: - Advanced power management features - Clocking option 12/13 MHz with PLL bypass mode for power reduction High integration: - Implemented in 0.18 µm CMOS technology - RF includes on-chip antenna filter and switch - On-chip firmware with plete HCI Embedded ROM and Patch RAM memory Up to seven Asynchronous Connection Less (ACL) links Support for two simultaneous voice or Synchronous...