LMX5452
Micro-Module Integrated Bluetooth

1.2 Baseband

Controller and Radio

1.0 General Description

The LMX5452 is a highly integrated Bluetooth 1.2 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 baseband controller has a standard Host Controller
Interface (HCI). Based on the National Semiconductor Com-
pactRISCTM 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 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 LMX5452 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/

2.0 Applications

Mobile Handsets

USB Dongles

Stereo Headsets

Personal Digital Assistants

Personal Computers

Automotive Telematics

3.0 Features

Compliant with the Bluetooth 1.2 Core Specification

-80 dBm 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 complete HCI

Embedded ROM and Patch RAM memory

Up to seven Asynchronous Connection Less (ACL) links

Support for two simultaneous voice or Synchronous
Connection Oriented (SCO) links

Accepts10-20 MHz external clock or crystal network

Fractional-N Sigma/Delta modulator

Operating voltage range 2.53.6V

I/O voltage range 1.63.6V

60-pad micro-module BGA package (6.1 mm x 9.1 mm x
1.2 mm)

4.0 Interfaces

Full-duplex UART supporting transfer rates up to 921.6
kbps including baud rate detection for HCI

Full speed (12 Mbps) USB 2.0 for HCI

ACCESS.bus and SPI/Microwire for interfacing with
external non-volatile memory

Advanced Audio Interface (AAI) for interfacing with
external 8-kHz PCM codec

Up to 3 GPIO port pins (OP4/PG4, PG6, PG7)
controllable by HCI commands

JTAG based serial on-chip debug interface

Single Rx/Tx-pad radio interface

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.

February 2006

LMX5452

Micro-Module

Integrated

Bluetooth

1.2

Baseband

Controller

and

Radio

DS201804

www.national.com

8.0 Physical Dimensions

inches (millimeters) unless otherwise noted

FBGA, Plastic, Laminate, 9x6x1.2mm, 60 Ball, 0.8mm Pitch Package

NS Package Number SLF60A

National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves
the right at any time without notice to change said circuitry and specifications.

For the most current product information visit us at www.national.com.

LIFE SUPPORT POLICY

NATIONAL'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS
WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR
CORPORATION. As used herein:

1. Life support devices or systems are devices or systems

which, (a) are intended for surgical implant into the body, or
(b) support or sustain life, and whose failure to perform when
properly used in accordance with instructions for use
provided in the labeling, can be reasonably expected to result
in a significant injury to the user.

2. A critical component is any component of a life support

device or system whose failure to perform can be reasonably
expected to cause the failure of the life support device or
system, or to affect its safety or effectiveness.

BANNED SUBSTANCE COMPLIANCE

National Semiconductor manufactures products and uses packing materials that meet the provisions of the Customer Products
Stewardship Specification (CSP-9-111C2) and the Banned Substances and Materials of Interest Specification (CSP-9-111S2) and contain
no ``Banned Substances'' as defined in CSP-9-111S2.

Leadfree products are RoHS compliant.

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