MAX2880:250MHz to 12.4GHz, High-Performance, Fractional/Integer-N PLL

High-Frequency PLL Breaks New Performance Barriers

The MAX2880 is a high-performance phase-locked loop (PLL) capable of operating in both integer-N and fractional-N modes. Combined with an external reference oscillator, loop filter, and VCO, the device forms an ultra-low noise and low-spur frequency synthesizer capable of accepting RF input frequencies of up to 12.4GHz. The MAX2880 consists of a high-frequency and low-noise-phase frequency detector (PFD), precision charge pump, 10-bit programmable reference counter, 16-bit integer N counter, and 12-bit variable modulus fractional modulator. The MAX2880 is controlled by a 3-wire serial interface and is compatible with 1.8V control logic. The device is available in a lead-free, RoHS-compliant, 20-pin TQFN and 16-pin TSSOP packages, and operates over an extended -40°C to +85°C temperature range.

Key Features
  • Integer and Fractional-N Modes
  • 250MHz to 12.4GHz Broadband RF Input
  • Normalized In-Band Noise Floor
    • -229dBc/Hz in Integer Mode
    • -227dBc/Hz in Fractional Mode
  • -10dBm to +5dBm Wide Input Sensitivity
  • Low-Noise Phase Frequency Detector
    • 125MHz in Fractional Mode
    • 140MHz in Integer Mode
  • Reference Frequency Up to 210MHz
  • Operates from +2.8V to +3.6V Supply
  • Cycle Slip Reduction and Fast Lock
  • Software and Hardware Shutdown
  • Software Lock Detect
  • On-Chip Temperature Sensor
  • Compatible with +1.8V Control Logic
  • Phase Adjustment
MAX2880: Functional Diagram
MAX2880: Functional Diagram
Applications/Uses
  • Microwave Point-to-Point Systems
  • RF DAC and ADC Clocks
  • Satellite Communications
  • Test and Measurement
  • Wireless Infrastructure
DataSheet
titleDownload file
MAX2880?Data SheetMAX2880.pdf
Parametrics
Part NumberSynthesizer ModeVSUPPLY
(V)
Oper. Freq.
(MHz)
Oper. Freq.
(MHz)
Inband Noise Floor
(dBc/Hz)
RMS Jitter
(ps RMS)
Package/PinsOper. Temp.
(°C)
Budgetary
Price
minmaxtypSee Notes
MAX2880Fractional
Integer
3.0 to 3.625012400-2290.14TQFN/20-40 to +85$6.11 @1k
Design kits & evaluation modules
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX2880ETP+ActiveTQFN,;20 pin;16.8 mm?-40°C to +85°CLead Free
MAX2880ETP+TActiveTQFN,;20 pin;16.8 mm?-40°C to +85°CLead Free
MAX2880.pdf MAX2880
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