Design DocumentAnalog

Demo Manual DC2668A: LTC5552 3GHz to 20GHz Microwave Mixer with Wideband DC to 6GHz IF

Evaluation manual for the DC2668A circuit featuring the LTC5552, a 3GHz to 20GHz passive double-balanced microwave mixer with a wideband DC to 6GHz IF.

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Overview

Demonstration circuit 2668A is an evaluation platform for the LTC5552 passive double-balanced mixer. The board features an RF port broadband matched from 3GHz to 20GHz and an internal LO amplifier matched to 50Ω from 1GHz to 20GHz, requiring only a 0dBm drive level. The differential IF output is usable from DC to 6GHz. The manual provides technical specifications, absolute maximum ratings, and detailed test setups for both upconversion and downconversion measurements. It includes a quick start procedure, a complete bill of materials featuring components from AVX, Murata, and Mini-Circuits, and a full circuit schematic.

Use Cases

Microwave frequency upconversion
Microwave frequency downconversion
RF signal processing evaluation
Wideband communication systems
Broadband receiver design

Topics

LTC5552

DC2668A

Microwave Mixer

Double-balanced Mixer

Passive Mixer

Analog Devices

Linear Technology

RF Upconverter

RF Downconverter

3GHz to 20GHz Mixer

Referenced Parts

0402ZK180GBSTR

AVX

1 1 C1 CAP., 18pF, C0G, 10V, 2%, 0402 AVX, 0402ZK180GBSTR

2308-2-00-80-00-00-07-0

Mill-Max

4 3 E1-E3 TEST POINT, TURRET, 0.061" MTG. HOLE MILL-MAX, 2308-2-00-80-00-00-07-0

TC1-1-13M

Mini-Circuits

7 1 T1 XFMR., 1:1, 4.5-3000MHz MINI-CIRCUITS, TC1-1-13M+

142-0701-851

EF Johnson

6 1 J3 CONN., SMA, 50Ω, EDGE-LAUNCH E.F. JOHNSON, 142-0701-851

142-0761-881

E.F. Johnson

5 2 J1, J2 CONN., SMA, 50Ω, EDGE-LAUNCH E.F. JOHNSON, 142-0761-881

LTC5552IUDB#PBF

Linear Technology

8 1 U1 I.C., LTC5552IUDB, QFN 12 PIN, 3mm × 2mm LINEAR TECHNOLOGY, LTC5552IUDB#PBF

GJM1555C1H180FB01

Murata

2 1 C2 CAP., 18pF, C0G, 50V, 1%, 0402 MURATA, GJM1555C1H180FB01

GRM188R71A105KA61

Murata

3 1 C3 CAP., 1μF, X7R, 10V, 10%, 0603 MURATA, GRM188R71A105KA61

0402ZK180GBSTR	AVX	1 1 C1 CAP., 18pF, C0G, 10V, 2%, 0402 AVX, 0402ZK180GBSTR
2308-2-00-80-00-00-07-0	Mill-Max	4 3 E1-E3 TEST POINT, TURRET, 0.061" MTG. HOLE MILL-MAX, 2308-2-00-80-00-00-07-0
TC1-1-13M	Mini-Circuits	7 1 T1 XFMR., 1:1, 4.5-3000MHz MINI-CIRCUITS, TC1-1-13M+
142-0701-851	EF Johnson	6 1 J3 CONN., SMA, 50Ω, EDGE-LAUNCH E.F. JOHNSON, 142-0701-851
142-0761-881	E.F. Johnson	5 2 J1, J2 CONN., SMA, 50Ω, EDGE-LAUNCH E.F. JOHNSON, 142-0761-881
LTC5552IUDB#PBF	Linear Technology	8 1 U1 I.C., LTC5552IUDB, QFN 12 PIN, 3mm × 2mm LINEAR TECHNOLOGY, LTC5552IUDB#PBF
GJM1555C1H180FB01	Murata	2 1 C2 CAP., 18pF, C0G, 50V, 1%, 0402 MURATA, GJM1555C1H180FB01
GRM188R71A105KA61	Murata	3 1 C3 CAP., 1μF, X7R, 10V, 10%, 0603 MURATA, GRM188R71A105KA61