Features
| • | 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) |
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/
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