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  2. RF and Microwave
  3. I/Q Modulators and Demodulators
  4. I/Q Modulators
  5. LT5528

Data Sheet
JP
User Guides
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Alternative Parts

LTC5588-1
LTC5588-1

200MHz to 6000MHz Quadrature Modulator with Ultrahigh OIP3

Overview

Features and Benefits

  • Direct Conversion to 1.5GHz to 2.4GHz
  • High OIP3: 21.8dBm at 2GHz
  • Low Output Noise Floor at 5MHz Offset:
    • No RF: –159.3dBm/Hz
    • POUT = 4dBm: –151.8dBm/Hz
  • 4-Ch W-CDMA ACPR: –66dBc at 2.14GHz
  • Integrated LO Buffer and LO Quadrature Phase Generator
  • 50Ω AC-Coupled Single-Ended LO and RF Ports
  • 50Ω DC Interface to Baseband Inputs
  • Low Carrier Leakage: –42dBm at 2GHz
  • High Image Rejection: 45dB at 2GHz
  • 16-Lead QFN 4mm × 4mm Package

Product Details

The LT5528 is a direct I/Q modulator designed for high performance wireless applications, including wireless infrastructure. It allows direct modulation of an RF signal using differential baseband I and Q signals. It supports PHS, GSM, EDGE, TD-SCDMA, CDMA, CDMA2000, W-CDMA and other systems. It may also be confi gured as an image reject up-converting mixer, by applying 90° phase-shifted signals to the I and Q inputs. The I/Q baseband inputs consist of voltage-to-current converters that in turn drive double-balanced mixers. The outputs of these mixers are summed and applied to an on-chip RF transformer, which converts the differential mixer signals to a 50Ω single-ended output. The four balanced I and Q baseband input ports are intended for DC coupling from a  source with a common-mode voltage level of about 0.5V. The LO path consists of an LO buffer with single-ended input, and precision quadrature generators that produce the LO drive for the mixers. The supply voltage range is 4.5V to 5.25V.

Applications

  • Infrastructure Tx for DCS, PCS and UMTS Bands
  • Image Reject Up-Converters for PCS and UMTS Bands
  • Low-Noise Variable Phase-Shifter for 1.5GHz to 2.4GHz Local Oscillator Signals

Product Categories

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Product Lifecycle icon-not-recommended Last Time Buy

All products in this family will be obsolete soon. Please contact ADI Sales or Distributors to arrange for final purchases and read our Obsolescence Information to review the time periods for placing final orders and receiving final shipments.

Evaluation Kits (1)

Documentation & Resources

  • View All (7)
  • Data Sheets (1)
  • Reliability Data (1)
  • Application Notes (3)
  • User Guides (1)
  • Design Notes (1)
    • Document Type

    Tools & Simulations

    Design Tools

    ADIsimRF

    ADIsimRF is an easy-to-use RF signal chain calculator. Cascaded gain, noise, distortion and power consumption can be calculated, plotted and exported for signal chains with up to 50 stages. ADIsimRF also includes an extensive data base of device models for ADI’s RF and mixed signal components.

    Product Recommendations

    LT5528 Companion Parts

    Recommended Suggested Oscillator

    Design Resources

    ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.

    Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
    LT5528EUF#PBF Material Declaration Reliability Data 16-Lead QFN (4mm x 4mm x 0.75mm w/ EP)
    LT5528EUF#TRPBF Material Declaration Reliability Data 16-Lead QFN (4mm x 4mm x 0.75mm w/ EP)
    Wafer Fabrication Data R409 Reliability Data

    PCN-PDN Information

    Select a model from the dropdown below to subscribe to PCN/PDN notifications and view past notifications as well.

    Select Model for PCN Information
    • LT5528EUF#PBF Last Time Buy
    • LT5528EUF#TRPBF Last Time Buy

    Support & Discussions

    LT5528 Discussions

    RE: 36GHz RF oscillation signal source
    RE: Query
    All LT5528 Discussions
    LT5528 Contact ADI Technical Support »
    LT5528 Ask your question »
    LT5528 Contact ADI Technical Support » LT5528 Ask your question »

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