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LMX2377U  Product Folder

PLLatinum Ultra Low Power Dual Frequency Synthesizer for RF Personal Communications LMX2377U 2.5 GHz/1.2 GHz
Generic P/N 2377U
General
Description		 Features Datasheet Package
& Models		 Samples
& Pricing		 Reliability
Metrics

WEBENCH Live Simulation!
LMX2377U Webench™
Design/Analyze/Build It
RF-Side PLL Design Options
Min Output Frequency MHz >= 500 help
Max Output Frequency MHz <= 2500 help
Channel Spacing KHz > 0 help
AUX-Side PLL Design Options
Min Output Frequency MHz >= 45 help
Max Output Frequency MHz <= 1200 help
Channel Spacing KHz > 0 help
Global Design Options
Crystal Frequency KHz > 0 help
Max Power Supply V > 0 help
What is Webench?
  
Parametric Table
Temperature Min (deg C) -40 
Temperature Max (deg C) 85 
PLL Type RF/RF Dual 
Modulus Integer 
Operating Frequency (MHz) 2500 
Aux Op Frequency (MHz) 1200 
Normalized Phase Noise (dBc/Hz) -212 
Supply Current (mA) 3.50 
Supply Min (Volt) 2.70 
Supply Max (Volt) 5.50 
Fastlock Yes 
Prescalers 16/17 or 32/33 
Aux Prescalers 8/9 or 16/17 
-

Datasheet

TitleSize in KbytesDate
View Online
Download
Receive via Email
LMX2377U PLLatinum Ultra Low Power Dual Frequency Synthesizer for RF Personal Communications 2.5 GHz 1.2 GHz 3181 Kbytes 22-Nov-02 View Online Download Receive via Email

If you have trouble printing or viewing PDF file(s), see Printing Problems.

Package Availability, Models, Samples & Pricing

Part NumberPackageStatusModelsSamples &
Electronic
Orders		Budgetary PricingStd
Pack
Size		Package
Marking
TypePinsMSL/Lead-Free AvailabilityLead
Time		QtySPICEIBISQty$US each
LMX2377UEVALevaluation boardFull productionN/AN/A 
Buy Now		1+$176.001-
8 weeks0
LMX2377UTMTSSOP20StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$1.70rail
of
73		NSUZXYTT
LMX2377
UTM
8-10 weeks40000
LMX2377UTMXTSSOP20StatusFull productionN/AN/A 1K+$1.70reel
of
2500		NSUZXYTT
LMX2377
UTM
8-10 weeks40000
LMX2377USLBXLaminate CSP24StatusFull productionN/AN/A24 Hour Samples
Buy Now		1K+$1.76reel
of
2500		NSUZXYTT
LMX2377
USLB
8-10 weeks40000
LMX2377USLEXLaminate UCSP20StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$1.81reel
of
2500		NSXYTT
X2377U
SLEDD
8-10 weeks40000

General Description

The LMX2377U device is a high performance frequency synthesizer with integrated dual modulus prescalers. The LMX2377U device is designed for use as a local oscillator for the first and second RF of a dual conversion radio transceiver.

A 16/17 or a 32/33 prescale ratio can be selected for the Main synthesizer. An 8/9 or a 16/17 prescale ratio can be selected for the Aux synthesizer. Using a proprietary digital phase lock technique, the LMX2377U device generates very stable, low noise control signals for UHF and VHF voltage controlled oscillators. Both the Main and Aux synthesizers include a two-level programmable charge pump. The Main synthesizer has dedicated Fastlock circuitry.

Serial data is transferred to the devices via a three-wire interface (Data, LE, Clock). The low voltage logic interface allows connection to 1.8V devices. Supply voltages from 2.7V to 5.5V are supported. The LMX2377U features ultra low current consumption, typically 3.5 mA at 3.0V.

The LMX2377U devices are available in 20-Pin TSSOP, 24-Pin CSP, and 20-Pin UTCSP surface mount plastic packages.

Features

  • Ultra Low Current Consumption
  • Upgrade and Compatible to the LMX2370
  • 2.7V to 5.5V Operation
  • 1.8V to 5.0V MICROWIRE Logic Interface
  • Selectable Synchronous or Asynchronous Powerdown Mode: ICC-PWDN = 1 µA typical
  • Selectable Dual Modulus Prescaler: Main: 16/17 or 32/33 Aux: 8/9 or 16/17
  • Selectable Charge Pump TRI-STATE® Mode
  • Programmable Charge Pump Current Levels Main and Aux: 0.95 or 3.8 mA
  • Selectable Fastlock™ Mode for the Main Synthesizer
  • Open Drain Analog Lock Detect Output
  • Available in 20-Pin TSSOP, 24-Pin CSP, and 20-Pin UTCSP

Applications

  • Mobile Handsets (GSM, GPRS, W-CDMA, CDMA, PCS, AMPS, PDC, DCS)
  • Cordless Handsets (DECT, DCT)
  • Wireless Data
  • Cable TV Tuners

Reliability Metrics

Part Number Process Early Failure Rate - Rejects Sample Size (EFR) PPM * Rel. Rejects Device Hours Long Term Failure Rates (FITS) MTTF
LMX2377USLBXABIC41200033407500005212054006
LMX2377USLEXABIC41200033407500005212054006
LMX2377UTMABIC41200033407500005212054006
LMX2377UTMXABIC41200033407500005212054006
LMX2377UEVALCMOS721420014108000005226190940

For more information on Reliablitity Metrics, please click here.


[Information as of 15-Jan-2004]

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