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LMX2525

Features: Small Size5.0 mm X 4.0 mm X 0.75 mm 24-Pin LLP Package RF Synthesizer SystemTwo Integrated VCOsIntegrated Loop FilterLow Spurious, Low Phase Noise Fractional-N RF PLLBased on 10-Bit Delta Sigma ModulatorFrequency Resolution Down to 20 kHz Supports Various Reference Frequencies12.6 MHz, 1...

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SeekIC No. : 004397389 Detail

LMX2525: Features: Small Size5.0 mm X 4.0 mm X 0.75 mm 24-Pin LLP Package RF Synthesizer SystemTwo Integrated VCOsIntegrated Loop FilterLow Spurious, Low Phase Noise Fractional-N RF PLLBased on 10-Bit Delta ...

LMX2525 Data Sheet

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Part Number:
LMX2525
Supply Ability:
5000

Price Break

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

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Upload time: 2024/10/27

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Product Details

Description



Features:

 Small Size5.0 mm X 4.0 mm X 0.75 mm 24-Pin LLP Package
RF Synthesizer SystemTwo Integrated VCOsIntegrated Loop FilterLow Spurious, Low Phase Noise Fractional-N RF PLLBased on 10-Bit Delta Sigma ModulatorFrequency Resolution Down to 20 kHz
Supports Various Reference Frequencies12.6 MHz, 14.4 MHz, 25.2MHz, and 26.0 MHz
Fast Lock Time: 300 µs
Low Current Consumption10 mA at 2.8 V in PDC800 Mode
2.5 V to 3.3 V Operation
Digital Filtered Lock Detect Output
Hardware and Software Power Down Control


Application

Japan PDC Systems at 800 MHz and 1500 MHzFrequency Bands.


Pinout

Connection Diagram


Specifications

Parameter

Symbol

Ratings

Units

Supply Voltage

VCC,VDD

-0.3 to 3.6

V

Voltage on any pin
to GND

VI

-0.3toVCC+0.3

V

-0.3toVDD+0.3

V

Storage Temperature
Range

TSTG

-65 to 150




Description

LMX2525 is a highly integrated, high performance, lowpower frequency synthesizer system optimized for dual-band Japan PDC mobile handsets. Using a proprietary digi-tal phase locked loop technique, LMX2525 generates verystable, low noise local oscillator signals for up and downconversion in wireless communications devices.

LMX2525 includes dual voltage controlled oscillators (VCOs)for the upper and lower Japan PDC frequency bands, a loopfilter, and a fractional-N RF PLL based on a delta sigmamodulator. In concert, these blocks form a closed loop RFsynthesizer system. The RF synthesizer system supportstwo frequency bands:PDC1500 and PDC800.

Serial data is transferred to the device via a three-wireMICROWIRE interface (DATA, LE, CLK).Operating supply voltage ranges from 2.5 V to 3.3 V.

LMX2525 features low current consumption: 10 mA at 2.8 Vwhen operating in the PDC800 mode.LMX2525 is available in a 24-pin leadless leadframe pack-age (LLP).




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