LT5579 - 1.5GHz to 3.8GHz High Linearity Upconverting Mixer
Features
- High Output IP3: +27.3dBm at 2.14GHz
- Low Noise Floor: –158dBm/Hz (POUT = –5dBm)
- High Conversion Gain: 2.6dB at 2.14GHz
- Wide Frequency Range: 1.5GHz to 3.8GHz*
- Low LO Leakage
- Single-Ended RF and LO
- Low LO Drive Level: –1dBm
- Single 3.3V Supply
- 5mm × 5mm QFN24 Package
Typical Application
Description
The LT5579 mixer is a high performance upconverting mixer optimized for frequencies in the 1.5GHz to 3.8GHz range. The single-ended LO input and RF output ports simplify board layout and reduce system cost. The mixer needs only –1dBm of LO power and the balanced design results in low LO signal leakage to the RF output. At 2.6GHz operation, the LT5579 provides high conversion gain of 1.3dB, high OIP3 of +26dBm and a low noise floor of –157.5dBm/Hz at a –5dBm RF output signal level.
The LT5579 offers a high performance alternative to passive mixers. Unlike passive mixers, which have conversion loss and require high LO drive levels, the LT5579 delivers conversion gain at significantly lower LO input levels and is less sensitive to LO power level variations. The lower LO drive level requirements, combined with the excellent LO leakage performance, translate into lower LO signal contamination of the output signal.
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 |
|---|---|---|---|---|---|
| LT5579IUH#PBF | 5x5 QFN-24 | UH | I | 05-08-1747 | Yes |
| LT5579IUH#TRPBF | 5x5 QFN-24 | UH | I | 05-08-1747 | Yes |
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 | |
|---|---|---|---|---|---|---|
| LT5579IUH#PBF | 5x5 QFN-24 | I | $9.24 | $5.50 | Yes | |
| LT5579IUH#TRPBF | 5x5 QFN-24 | I | $5.55 | Yes | ||
| Buy Now • Request Samples | ||||||
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 |
|---|---|---|---|
| DC1233A-A | LT5579IUH | 456MHz IF, 3.5GHz RF Upconverting Mixer Demo Board | $125.00 | |
| DC1233A-B | LT5579IUH | 456MHz IF, 2.6GHz RF Upconverting Mixer Demo Board | $125.00 | |
| DC1233A-C | LT5579IUH | 240MHz IF, 2.14GHz RF Upconverting Mixer Demo Board | $125.00 | |
| DC1233A-D | LT5579IUH | 240MHz IF, 1.95GHz RF Upconverting Mixer Demo Board | $125.00 | |
| DC2191A-A | LTC2000 + LT5579 Combo Board | 16-Bit 2.5Gsps DAC with Upconverting Mixer | $495.00 | |
| Buy Now | |||
Applications
- GSM/EDGE, W-CDMA, UMTS, LTE and TD-SCDMA Basestations
- 2.6GHz and 3.5GHz WiMAX Basestations
- 2.4GHz ISM Band Transmitters
- High Performance Transmitters
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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
- For immediate technical assistance, contact your local sales office or distributor or call 1-800-4-LINEAR (US customers only) or 408-432-1900.
- For less urgent requests, please complete our Technical Support Request Form. Please allow 2-3 business days for reply.
