HMC838 Fractional-N PLL with Integrated VCO SMT, 795 - 945, 1590 - 1890, 3180 - 3780 MHz

The HMC838LP6CE is a fully functioned Fractional-N Phase-Locked-Loop (PLL) Frequency Synthesizer with an Integrated Voltage Controlled Oscillator (VCO). The synthesizer consists of an integrated low noise VCO with a triband output, an autocalibration subsystem for low voltage VCO tuning, a very low noise digital Phase Detector (PD), a precision controlled charge pump, a low noise reference path divider and a fractional divider.

The fractional synthesizer features an advanced delta-sigma modulator design that allows both ultra-fine step sizes and low spurious products. The phase detector (PD) features cycle slip prevention (CSP) technology to allow faster frequency hopping times. Ultra low in-close phase noise and low spurious also allows wider loop bandwidths for faster frequency hopping and low micro-phonics.

For theory of operation and register map refer to the "PLLs with Integrated VCO - RF VCOs" Operating Guide.

Applications
  • Cellular/4G Infrastructure
  • Repeaters and Femtocells
  • Communications Test Equipment
  • CATV Equipment
  • Phased Array Applications
  • DDS Replacement
  • Very High Data Rate Radios
Features and Benefits
  • RF Bandwidth: 795 - 945, 1590 - 1890, 3180 - 3780 MHz
  • Fractional or Integer Modes
  • 19-Bit Prescaler
  • Ultra Low Phase Noise -111 dBc/Hz in Band Typ.
  • Figure of Merit (FOM) -230 dBc Integer
  • 24-Bit Step Size, 3 Hz Resolution Typ.
  • 200 MHz, 14-bit Reference Path Input
  • Cycle Slip Prevention
  • 40 Lead 6x6mm SMT Package: 36mm²
  • RF & Microwave
    Data Sheets
    Documentnote
    HMC838 Data SheetPDF 1.21 M
    Application Notes
    Documentnote
    PLL & PLLVCO Serial Programming Interface Mode Selection Application NotePDF 1.07 M
    Power-Up & Brown-Out Design Considerations for RF PLL+VCO Products Application NotePDF 1.06 M
    Wideband RF PLL+VCO and Clock Generation Products FAQsPDF 397.01 K
    Frequency Hopping with Hittite PLLVCOs Application NotePDF 419.54 K
    User Guides
    Documentnote
    PLLs with Integrated VCO - RF Applications Product & Operating GuidePDF 1.5 M
    Order Information
    Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
    HMC838LP6CE Production40 ld QFN (6x6mm w/4.7mm ep)OTH 50-40 to 85C9.387.76Y
    HMC838LP6CETR Production40 ld QFN (6x6mm w/4.7mm ep)REEL 500-40 to 85C9.387.76Y
    Evaluation Boards
    Part NumberDescriptionPriceRoHS
    129020-HMC838LP6CEEvaluation Kit - fo/2 & fo (Includes: Eval PCB, USB Interface, CD) 274.17Y
    129021-HMC838LP6CEEvaluation Kit - 2fo (Includes: Eval PCB, USB Interface, CD) 274.17Y
    129511-HMC838LP6CEEvaluation Board - fo & fo/2234.17Y
    129512-HMC838LP6CEEvaluation Board - 2fo234.17Y
    Reference Materials
    HMC838 Data Sheet hmc838
    PLL & PLLVCO Serial Programming Interface Mode Selection Application Note hmc1032
    Power-Up & Brown-Out Design Considerations for RF PLL+VCO Products Application Note hmc1032
    Wideband RF PLL+VCO and Clock Generation Products FAQs hmc1032
    Frequency Hopping with Hittite PLLVCOs Application Note hmc1032
    PLLs with Integrated VCO - RF Applications Product & Operating Guide hmc1032
    Semiconductor Qualification Test Report: BiCMOS-A (QTR: 2013-00235) hmc628
    Package/Assembly Qualification Test Report: LP6, LP6C, LP6G (QTR: 2014-00368) hmc1032
    HMC Legacy PCN: LP6CE and LP6GE QFN - Alternate assembly source hmc1032
    LP6 Tape and Reel Outline Dimensions hmc820