LTM9003 - 12-Bit Digital Pre-Distortion Receiver Subsystem

Features

  • Fully Integrated Receiver Subsystem for Digital Pre-Distortion Applications
  • Down-Converting Mixer with Wide RF Frequency Range: 400MHz to 3.8GHz
  • 125MHz Wide Bandpass Filter, <0.5dB Passband Ripple
  • Low Power ADC with Up to 12-Bit Resolution, 250Msps Sample Rate
  • –145.5dBm/Hz Input Noise Floor, 25.6dBm IIP3
  • 1.5W Total Power Consumption
  • 50Ω Single-Ended RF and LO Ports
  • Internal Bypass Capacitance, No External Components
  • ADC Clock Duty Cycle Stabilizer
  • 11.25mm × 15mm LGA package

Typical Application

LTM9003 Typical Application
LTM9003 Typical Application

Description

The LTM9003 is a 12-bit digital pre-distortion μModule® receiver subsystem for the transmit path of cellular base-stations. Utilizing an integrated system in a package (SiP) technology, it includes a downconverting mixer, wideband filter and analog-to-digital converter (ADC). The system is tuned for an intermediate frequency (IF) of 184MHz and a signal bandwidth of up to 125MHz. The 12-bit ADC samples at rates up to 250Msps. Contact Linear Technology regarding customization.

The high signal level downconverting active mixer is optimized for high linearity, wide dynamic range IF sampling applications. It includes a differential LO buffer amplifier driving a double-balanced mixer. Broadband, integrated transformers on the RF and LO inputs provide single ended 50Ω interfaces. The RF and LO inputs are internally matched to 50Ω from 1.1GHz to 1.8GHz.

The CLK input controls converter operation and may be driven differentially or single-ended. An optional clock duty cycle stabilizer allows high performance at full speed for a wide range of clock duty cycles.

Packaging

CAD Symbols and Footprints: The downloadable Zip file below contains the schematic symbol and PCB footprints.

For complete and up to date package information and drawings, please refer to our packaging page

Part Number Package Code Temp Package
Drawing
RoHS
LTM9003CV-AA#PBF 15mm × 11.25mm × 2.32mm LGA LGA C 05-08-1757 Yes
LTM9003CV-AB#PBF 15mm × 11.25mm × 2.32mm LGA LGA C 05-08-1757 Yes
LTM9003IV-AA#PBF 15mm × 11.25mm × 2.32mm LGA LGA I 05-08-1757 Yes
LTM9003IV-AB#PBF 15mm × 11.25mm × 2.32mm LGA LGA I 05-08-1757 Yes


LTM9003 Package Drawing

Order Info

  • Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
  • Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
  • Please refer to our general ordering information or the product datasheet for more details

Package Variations and Pricing

Part Number Package Temp Price
(1-99)
Price
(1k)*
RoHS
LTM9003CV-AA#PBF 15mm × 11.25mm × 2.32mm LGA C $64.29 $45.00 Yes
LTM9003CV-AB#PBF 15mm × 11.25mm × 2.32mm LGA C $64.29 $45.00 Yes
LTM9003IV-AA#PBF 15mm × 11.25mm × 2.32mm LGA I $77.14 $54.00 Yes
LTM9003IV-AB#PBF 15mm × 11.25mm × 2.32mm LGA I $77.14 $54.00 Yes
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* The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Linear Technology sales office or authorized distributor.

Demo Boards

Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.

Part Number Description Price Documentation
DC1437B-AA LTM9003-AA demo board, LVDS output, uses DC890 & LVDS_XFMR $300.00
DC1437B-AB LTM9003-AB demo board, LVDS output, uses DC890 & LVDS_XFMR $300.00
DC1642A-AA LTM9003-AA demo board with HSMC connector, LVDS outputs. Use DC1437 for PScope evaluation $300.00
DC1642A-AB LTM9003-AB demo board with HSMC connector, LVDS outputs. Use DC1437 for PScope evaluation $300.00
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Companion Boards

Part Number Description Price Documentation
DC890B USB Data Acquisition Controller, for PScope Evaluation Kits (up to 250Mbps, CMOS/LVDS) $300.00
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Click here to view our complete list of demo boards

Applications

  • Transmit Observation Path Receivers
  • Digital Pre-Distortion (DPD) Receivers
  • Wideband Receiver
  • Wideband Instrumentation

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Design Tools

Linear Technology provides a variety of custom design simulation tools and device models to allow even novice designers to quickly and easily evaluate circuits using high performance switching regulators, amplifiers, data converters, filters and more. Please visit our Design Tools page to view and download:

  • LTspice - A powerful SPICE simulator, schematic capture and waveform viewer with enhancements and models for easing the simulation of switching regulators
  • LTpowerCAD - A complete power supply selection, synthesis and design tool
  • LTpowerPlay - A development environment supporting Linear Technology's Digital Power System Management (PSM) products
  • PScope & QuikEval - USB-based product demonstration and data acquisition system for use with our ADCs, DACs, and more
  • Linduino - Arduino compatible system for developing and distributing firmware libraries and example code
  • LinearLab Tools - A collection of Matlab and Python programs that provide direct access to Linear Technology’s data converter evaluation boards
  • And More!

Technical Support