LMX5252_15 Datasheet, PDF (1/41 Pages) Texas Instruments – Bluetooth™ Radio

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LMX5252
SNOSCW4A – DECEMBER 2004 – REVISED APRIL 2013
Bluetooth™ Radio
Check for Samples: LMX5252
FEATURES
1
•2 The LMX5252 provides a very compact radio
solution for Bluetooth™ applications that put
extra strong requirements on low cost and
small form factors. In addition, the application
benefits from very low signal loss between the
antenna and the radio.
• The radio completely integrates the receiver
and transmitter baluns, the antenna switch,
and filter together with the voltage-controlled
oscillator (VCO) tank on one single die. The
fractional-N delta-sigma synthesizer and the
crystal offer support for a wide range of
external reference frequency clocks or
crystals. The digital Received Signal Strength
Indicator (RSSI) allows for efficient power
control and communication with Bluetooth
Class 2 devices. Several current saving modes
are available.
• The baseband interface is completely digital
and compatible with 8-pin bi-directional
BlueRF using the RXMODE2 configuration. It
can automatically adapt to the voltage levels
used by different baseband controllers,
independently of the supply voltage.
APPLICATIONS
• The LMX5252 is primarily targeting cost-
sensitive consumer applications that require
fast design-in, low power consumption and
small designs. It is ideal for applications such
as:
– 2G, 2.5G, and 3G handsets
– PDAs
– Notebook PCs
– Computer peripherals
– Office network equipment
– Home applications
FUNCTIONAL BLOCK DIAGRAM
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Bluetooth is a trademark of Bluetooth SIG, Inc.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2004–2013, Texas Instruments Incorporated