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ADF4252

Features: 3.0 GHz Fractional-N/1.2 GHz Integer-N 2.7 V to 3.3 V Power Supply Separate VP Allows Extended Tuning Voltage to 5 V Programmable Dual Modulus Prescaler RF: 4/5, 8/9 IF: 8/9, 16/17, 32/33, 64/65 Programmable Charge Pump Currents 3-Wire Serial Interface Digital Lock Detect Power-Down Mod...

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SeekIC No. : 004274741 Detail

ADF4252: Features: 3.0 GHz Fractional-N/1.2 GHz Integer-N 2.7 V to 3.3 V Power Supply Separate VP Allows Extended Tuning Voltage to 5 V Programmable Dual Modulus Prescaler RF: 4/5, 8/9 IF: 8/9, 16/17, 32/33...

ADF4252 Data Sheet

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Part Number:
ADF4252
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:

3.0 GHz Fractional-N/1.2 GHz Integer-N
2.7 V to 3.3 V Power Supply
Separate VP Allows Extended Tuning Voltage to 5 V
Programmable Dual Modulus Prescaler
    RF: 4/5, 8/9
    IF: 8/9, 16/17, 32/33, 64/65
Programmable Charge Pump Currents
3-Wire Serial Interface
Digital Lock Detect
Power-Down Mode
Programmable Modulus on Fractional-N Synthesizer
Trade-Off Noise versus Spurious Performance 


Application

Base Stations for Mobile Radio (GSM, PCS, DCS, CDMA, WCDMA)
Wireless Handsets (GSM, PCS, DCS, CDMA, WCDMA)
Wireless LANs
Communications Test Equipment
CATV Equipment


Pinout

Connection Diagram


Specifications

VDD1, VDD2, VDD3, DVDD to GND3 . . . . . . .. 0.3 V to +4 V
REFIN, RFINA, RFINB to GND . . . . . . 0.3 V to VDD + 0.3 V
VP1, VP2 to GND . . . . . . . . . . . . .  . . . . . . 0.3 V to +5.8 V
VP1, VP2 to VDD1 . . . . . . . . . . . . . . . . . . . 3.3 V to +3.5 V
Digital I/O Voltage to GND . . . . . . . . 0.3 V to VDD + 0.3 V
Analog I/O Voltage to GND . . . . . .. . 0.3 V to VDD + 0.3 V
Operating Temperature Range
   Industrial (B Version) . . . . . . . . . . . .. . . 40°C to +85°C
Storage Temperature Range . . . . . . . . . 65°C to +150°C
Maximum Junction Temperature . . . . . . .  . . . . . . . . 150°C
CSP JA Thermal Impedance . . . . . . . . . . . . . . . . 122°C/W
Soldering Reflow Temperature
   Vapor Phase (60 sec max) . . . . . . . . . .  . . . . . . . . 240°C
   IR Reflow (20 sec max) . . . . . . . . . . . . . .  . . . . . . . 240°C


Description

The ADF4252 is a dual fractional-N/integer-N frequency synthesizer that can be used to implement local oscillators (LO) in the upconversion and downconversion sections of wireless receivers and transmitters. Both the RF and IF synthesizers consist of a low noise digital PFD (phase frequency detector), a precision charge pump, and a programmable reference divider. The RF synthesizer has a --based fractional interpolator that allows programmable fractional-N division. The IF synthesizer has programmable integer-N counters. A complete PLL (phase-locked loop) can be implemented if the synthesizer is used with an external loop filter and VCO (voltage controlled oscillator).

Control of all the on-chip registers is via a simple 3-wire interface. ADF4252 operates with a power supply ranging from 2.7 V to 3.3 V and can be powered down when not in use.




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