LMX5453 LMX5453 Micro-Module Integrated Bluetooth 2.0 Baseband Controller and Radio | TI.com

LMX5453 (NRND)

LMX5453 Micro-Module Integrated Bluetooth 2.0 Baseband Controller and Radio

 

Description

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 × 9.1 mm × 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 complete 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, supporting 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/

Features

    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
  • Compliant with the Bluetooth 2.0 Core Specification
  • Better than –80 dBm 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 kHz oscillator for low-power modes
    • Advanced power management features
  • High integration:
    • Implemented in 0.18 µm CMOS technology
    • RF includes on-chip antenna filter and switch
  • On-chip firmware with complete HCI
  • Embedded ROM (200K) and Patch RAM (16.6K) memory
  • Up to 7 Asynchronous Connection Less (ACL) links
  • Support for two simultaneous voice or Extended
    Synchronous Connection Oriented (eSCO) and
    Synchronous Connection Oriented (SCO) and
    links.
  • Enhanced scatternet
  • Interlaced scan
  • Flushing
  • Audio PCM slave mode support
  • Generic PCM configuration
  • Fractional-N Sigma/Delta modulator
  • Operating voltage range 2.5–3.6V
  • I/O voltage range 1.6–3.6V
  • 60-pad micro-module BGA package (6.1 mm × 9.1 mm × 1.2 mm)

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