LMX2353TM datasheet(1/16 Pages) NSC

Part #	LMX2353TM

Description	PLLatinum??Fractional N Single 2.5 GHz Frequency Synthesizer

PDF	16 Pages

Scroll/Zoom	100%

Manufacturer	NSC [National Semiconductor (TI)]

Direct Link	http://www.national.com

Logo

1 / 16 page

LMX2353

PLLatinum™ Fractional N Single 2.5 GHz Frequency

Synthesizer

General Description

The LMX2353 is a monolithic integrated fractional N fre-

quency synthesizer, designed to be used in a local oscillator

subsystem for a radio transceiver. It is fabricated using Na-

tional’s 0.5µ ABiC V silicon BiCMOS process. The LMX2353

contains dual modulus prescalers along with modulo 15 or

16 fractional compensation circuitry in the N divider. A 16/17

or 32/33 prescale ratio can be selected for the LMX2353. Us-

ing a fractional N phase locked loop technique, the LMX2353

can generate very stable low noise control signals for UHF

and VHF voltage controlled oscillators (VCO’s).

The LMX2353 has a highly flexible 16 level programmable

charge pump supplies output current magnitudes from 100

µA to 1.6 mA. Serial data is transferred into the LMX2353 via

a three wire interface (Data, LE, Clock). Supply voltage can

range from 2.7V to 5.5V. The LMX2353 features very low

current consumption; typically 4.5 mA at 3.0V. The LMX2353

is available in a 16-pin TSSOP or a 16-pad CSP surface

mount plastic package.

Features

n 2.7V – 5.5V operation

n Low Current Consumption

I

CC = 4.5 mA typ @ VCC = 3.0V

n Programmable or Logical Power Down Mode

I

CC =5µA typ @ VCC = 3.0V

n Modulo 15 or 16 fractional N divider

Supports ratios of 1, 2, 3, 4, 5, 8, 15, or 16

n Programmable charge pump current levels

100 µA to 1.6 mA in 100 µA steps

n Digital Filtered Lock Detect

Applications

n Portable wireless communications (PCS/PCN, cordless)

n Zero blind slot TDMA systems

n Cellular and Cordless telephone systems

n Spread spectrum communication systems (CDMA)

Functional Block Diagram

MICROWIRE™ and PLLatinum™ are trademarks of National Semiconductor Corporation.

TRI-STATE® is a registered trademark of National Semiconductor Corporation.

DS101124-1

PRELIMINARY

June 1999

DS101124

www.national.com

Similar Part No. - LMX2353TM

Manufacturer	Part #	Datasheet	Description
National Semiconductor ...	LMX2350	408Kb / 21P	PLLatinum TM Fractional N RF / Integer N IF Dual Low Power Frequency Synthesizer
Texas Instruments	LMX2350	449Kb / 23P	PLLatinum Fractional N RF / Integer N IF Dual Low Power Frequency Synthesizer
National Semiconductor ...	LMX2350TM	408Kb / 21P	PLLatinum TM Fractional N RF / Integer N IF Dual Low Power Frequency Synthesizer
Texas Instruments	LMX2352	449Kb / 23P	PLLatinum Fractional N RF / Integer N IF Dual Low Power Frequency Synthesizer
National Semiconductor ...	LMX2352TM	408Kb / 21P	PLLatinum TM Fractional N RF / Integer N IF Dual Low Power Frequency Synthesizer

More results

Similar Description - LMX2353TM

Manufacturer	Part #	Datasheet	Description
Analog Devices	ADF4153	354Kb / 24P	Fractional-N Frequency Synthesizer 7/03-Revision 0
National Semiconductor ...	LMX2364	694Kb / 39P	2.6 GHz PLLatinum Fractional RF Frequency Synthesizer with 850 MHz Integer IF Frequency Synthesizer
Analog Devices	ADF4156	421Kb / 24P	6 GHz Fractional-N Frequency Synthesizer 5/06-Revision 0
Cirrus Logic	CS2200-CP	326Kb / 26P	Fractional-N Frequency Synthesizer
Cirrus Logic	CS2200-CP	218Kb / 26P	Fractional-N Frequency Synthesizer
Analog Devices	ADF4153BCPZ	354Kb / 24P	Fractional-N Frequency Synthesizer Rev. F
Analog Devices	ADF4156	393Kb / 24P	6.2 GHz Fractional-N Frequency Synthesizer Rev. E
Texas Instruments	LMX2350	449Kb / 23P	PLLatinum Fractional N RF / Integer N IF Dual Low Power Frequency Synthesizer
Cirrus Logic	CS2200-OT	861Kb / 23P	Fractional-N Frequency Synthesizer
Analog Devices	ADF4153	483Kb / 25P	Fractional-N Frequency Synthesizer 12/2016-Rev. F to Rev. G

More results

LMX2353TM Datasheet(PDF) 1 Page - National Semiconductor (TI)

LMX2353TM Datasheet(HTML) 1 Page - National Semiconductor (TI)

Similar Part No. - LMX2353TM

Similar Description - LMX2353TM

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Datasheet Download

Link URL