RF & Wireless I/Q Demodulators

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LT5516 - 800MHz to 1.5GHz Direct Conversion Quadrature Demodulator

Features

  • Frequency Range: 800MHz to 1.5GHz
  • High IIP3: 21.5dBm at 900MHz
  • High IIP2: 52dBm
  • Noise Figure: 12.8dB at 900MHz
  • Conversion Gain: 4.3dB at 900MHz
  • I/Q Gain Mismatch: 0.2dB
  • Shutdown Mode
  • 16-Lead QFN 4mm x 4mm Package with Exposed Pad

Typical Application

LT5516 Typical Application
LT5516 Typical Application

Description

The LT5516 is an 800MHz to 1.5GHz direct conversion quadrature demodulator optimized for high linearity receiver applications. It is suitable for communications receivers where an RF or IF signal is directly converted into I and Q baseband signals with bandwidth up to 260MHz. The LT5516 incorporates balanced I and Q mixers, LO buffer amplifiers and a precision, high frequency quadrature generator.

In an RF receiver, the high linearity of the LT5516 provides excellent spur-free dynamic range, even with fixed gain front end amplification. This direct conversion receiver can eliminate the need for intermediate frequency (IF) signal processing, as well as the corresponding requirements for image filtering and IF filtering. Channel filtering can be performed directly at the outputs of the I and Q channels. These outputs can interface directly to channelselect filters (LPFs) or to a baseband amplifier.

Packaging

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

QFN-16

LT5516 Package Drawing

Order Info

Package Variations and Pricing

Part Number Package Pins Temp Price (1-99) Price (1k)* RoHS Data
LT5516EUF QFN 16 E $5.64 $3.95 View
LT5516EUF#PBF QFN 16 E $5.64 $3.95 View
LT5516EUF#TR QFN 16 E $4.01 View
LT5516EUF#TRPBF QFN 16 E $4.01 View
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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
DC889A LT5516EUF | Replaces DC555A-B; 900MHz Direct Conversion Demod. $125.00
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Click here to view our complete list of demo boards

Applications

  • Cellular/PCS/UMTS Infrastructure
  • High Linearity Direct Conversion I/Q Receiver
  • High Linearity I/Q Demodulator

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