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LMX2305

Features: RF operation up to 550 MHz2.65V to 5.5V operationLow current consumption:ICC e 4.0 mA (typ) at VCC e 2.75VDual modulus prescaler: 64/65 or 128/129Internal balanced, low leakage charge pumpSmall-outline, plastic, surface mount TSSOP,0.173* wide packageApplicationAnalog Cellular telephone ...

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SeekIC No. : 004397327 Detail

LMX2305: Features: RF operation up to 550 MHz2.65V to 5.5V operationLow current consumption:ICC e 4.0 mA (typ) at VCC e 2.75VDual modulus prescaler: 64/65 or 128/129Internal balanced, low leakage charge pump...

LMX2305 Data Sheet

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Part Number:
LMX2305
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

RF operation up to 550 MHz
2.65V to 5.5V operation
Low current consumption:ICC e 4.0 mA (typ) at VCC e 2.75V
Dual modulus prescaler: 64/65 or 128/129
Internal balanced, low leakage charge pump
Small-outline, plastic, surface mount TSSOP,0.173* wide package


Application

Analog Cellular telephone systems(AMPS, ETACS, NMT)
Portable wireless communications(PCS/PCN, cordless)
Wireless local area networks (WLANs)
Other wireless communication systems
Pagers


Pinout

Connection Diagram


Specifications

Power Supply Voltage
VCC                                                                         -0.3V to +6.5V
VP                                                                           -0.3V to +6.5V
Voltage on Any Pin
with GND e 0V (VI)                                           -0.3V to VCC +0.3V
Storage Temperature Range (TS)                             -65to +150
Lead Temperature (TL) (solder, 4 sec.)                                +260


Description

The LMX2305 is a high performance frequency synthesizerwith an integrated prescaler designed for RF operation up to550 MHz. It is fabricated using National's ABiC IV BiCMOSprocess.

The LMX2305 contains a dual modulus prescaler which canselect either a 64/65 or a 128/129 divide ratio at input fre-quencies of up to 550 MHz. LMX2305, which employs thedigital phase lock loop technique, combined with a highquality reference oscillator and a loop filter, provides thetuning voltage for the voltage controlled oscillator to gener-ate a very stable, low noise local oscillator signal.

Serial data is transferred into the LMX2305 via a three lineMICROWIRETM interface (Data, Enable, Clock). Supply volt-age can range from 2.65V to 5.5V. The LMX2305 featuresvery low current consumption, typically 4.0 mA at 2.75V.

The LMX2305 is available in a TSSOP 20-pin surface mount plastic package.




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