Overview
Features and Benefits
- Wide RF Frequency Range: 400MHz to 3.8GHz*
- High Input IP3:
- 25.6dBm at 900MHz
- 24.7dBm at 1950MHz
- 23.7dBm at 2.6GHz
- Conversion Gain:
- 3.3dB at 900MHz
- 2.9dB at 1950MHz
- –3dBm LO Drive Level
- Low LO Leakage
- Low Noise Figure:
- 10.6dB at 900MHz
- 11.7dB at 1950MHz
- Low Power: 3.3V/269mW
- 50Ω Single-Ended RF and LO Ports
- Very Few External Components
- 16-Lead (4mm × 4mm) QFN Package
Product Details
The LT5557 active mixer is optimized for high linearity, wide dynamic range downconverter applications. The IC includes a high speed differential LO buffer amplifier driving a double-balanced mixer. Broadband, integrated transformers on the RF and LO inputs provide single-ended 50Ω interfaces. The differential IF output allows convenient interfacing to differential IF filters and amplifiers, or is easily matched to drive a single-ended 50Ω load, with or without an external transformer.
The RF input is internally matched to 50Ω from 1.6GHz to 2.3GHz, and the LO input is internally matched to 50Ω from 1GHz to 5GHz. The frequency range of both ports is easily extended with simple external matching. The IF output is partially matched and usable for IF frequencies up to 600MHz.
The LT5557’s high level of integration minimizes the total solution cost, board space and system-level variation.
Applications
- Cellular, CDMA, WCDMA, TD-SCDMA and UMTS Infrastructure
- WiMAX
- Wireless Infrastructure Receiver
- Wireless Infrastructure PA Linearization
- 900MHz/2.4GHz/3.5GHz WLAN
Product Categories
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (2)
Documentation & Resources
-
R409 Reliability Data3/23/2018
-
DC910A - Demo Manual9/24/2009
-
DC1131A - Demo Manual9/24/2009
-
Digital Predistortion Solutions5/21/2010
Tools & Simulations
S-Parameter
Design Tool
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
LT5557 Companion Parts
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 |
---|---|---|---|---|
LT5557EUF#PBF | Material Declaration | Reliability Data | 16-Lead QFN (4mm x 4mm x 0.75mm w/ EP) | |
LT5557EUF#TRPBF | Material Declaration | Reliability Data | 16-Lead QFN (4mm x 4mm x 0.75mm w/ EP) | |
Wafer Fabrication Data | R409 Reliability Data |
Support & Discussions
LT5557 Discussions
Sample & Buy
Ordering FAQs
See our Ordering FAQs for answers to questions about online orders, payment options and more.
Buy Now Pricing
(**) Displayed Buy Now Price and Price Range is based on small quantity orders.
List Pricing
(*)The 1Ku 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 Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
Lead Times
Please see the latest communication from our CCO regarding lead times.
Sampling
A Sample link will be shown above, next to the part, only for parts that are included in our sample program. Selecting the Sample button will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.
Evaluation Boards
Pricing displayed is based on 1-piece.
Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.