LMX4168FLQ National Semiconductor, LMX4168FLQ Datasheet

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LMX4168FLQ

Manufacturer Part Number
LMX4168FLQ
Description
Radio Transceiver for DECT
Manufacturer
National Semiconductor
Datasheet
© 2004 National Semiconductor Corporation
LMX4168
Radio Transceiver for DECT
1.0 General description
The LMX4168 is a radio transceiver integrated circuit opti-
mized for the Digital Enhanced Cordless Telecommunica-
tions (DECT) system. The transceiver, when combined with
a power amplifier and a Tx/Rx switch, implements a com-
plete DECT radio transceiver compliant with the ETSI
CTR6 standard. The LMX4168 interfaces to National Semi-
conductor’s SC144XX DECT family of baseband proces-
sors.
The LMX4168 integrates a complete transmitter, consisting
of a phase locked loop, VCO and PA driver. The receiver
contains LNA, quadrature downconverter, polyphase fil-
ter/combiner, automatic gain control, and demodulator.
The LMX4168 operates from a single 2.25–2.75V supply.
The LMX4168 is manufactured in National’s 0.25 m
CMOS technology, and is packaged in a 44 pin LLP pack-
age
4.0 System Diagram
PA
BALUN
BALUN
PORTS
LNA
PADR
TXDATA
2.0 Features
3.0 Applications
X2
Highly integrated 1.9 GHz low-IF CMOS transceiver
Down conversion to half the DECT channel spacing (864
kHz)
On-chip channel select filter
On-chip Voltage Controlled Oscillator (VCO)
On-chip low noise amplifier (LNA)
Open-loop modulation
On-chip timing control
Four digital (5 mA) output ports
0 dBm PA driver output
-95 dBm sensitivity
2.5V operation
Small 44 pin Leadless Leadframe Package
(DECT) Digital Enhanced Cordless Telecommunications
90°
ADVANCED INFORMATION
AGC
PLL
MICROWIRE
DEMOD.
DEMOD.
BIAS
R REF
www.national.com
March 2004
RX_DATA
RSSI
DATA
CLOCK
LE

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LMX4168FLQ Summary of contents

Page 1

... The LMX4168 is manufactured in National’s 0.25 m CMOS technology, and is packaged pin LLP pack- age 4.0 System Diagram PA © 2004 National Semiconductor Corporation 2.0 Features Highly integrated 1.9 GHz low-IF CMOS transceiver Down conversion to half the DECT channel spacing (864 kHz) On-chip channel select filter ...

Page 2

Specifications 5.1 ABSOLUTE MAXIMUM RATINGS Parameter Vdd_max Power supply voltage (Vdd_ADC, Vdd_IF, Vdd_mix, Vdd_LNA, Vdd_ESD, Vdd_PAdr, Vdd_presc, Vdd_PLL, Vdd_VCO, Vdd_shield, Vdd_bias, Vdd_dig, Vdd_RSSI) Absolute difference between power supplies V Voltage on any pin n P Input power (at pins ...

Page 3

... Specifications may change in any manner without notice. This data sheet contains preliminary data. Supplementary data will be published at a later date. National Semiconductor Corporation reserves the right to make changes at any time without notice in order to improve design and supply the best possible product. ...

Page 4

... Package Information inches (millimeters) unless otherwise noted Order Number For Tray LMX4168FLQ, xx units per Tray, xx Trays per Shipment Box. Order Number For Tape/Reel LMX4168FLQx, xxxx units per Tape/Reel, 1 Reel per Shipment Box 44 pins Leadless Leadframe Package. NS Package Number LQA044AF Note: MSL 2 (Moisture Sensitivity Level) is valid when the standard reflow process (235°C) is used. MSL year - after opening dry-pack. Storage conditions are max 30° ...

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