For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824

Phone: 978-250-3343

Fax: 978-250-3373

Order On-line at www.hittite.com

Application Support: Phone: 978-250-3343 or apps@hittite.com

10

10 - 7

Pin Number

Function

Description

interface schematic

21

LO

This pin is DC coupled and matched to 50 Ohms.

An off chip DC blocking capacitor is required.

see application circuit.

Evaluation PCB - Upconverter Mode

The circuit board used in the application should use

rF circuit design techniques. signal lines should

have 50 Ohm impedance while the package ground

leads and exposed paddle should be connected

directly to the ground plane similar to that shown.

A sufficient number of via holes should be used to

connect the top and bottom ground planes. The

evaluation circuit board shown is available from Hit-

tite upon request.

item

Description

J1 - J3

PCB Mount sMA rF Connector

J4

2mm DC Header

C1, C2, C3

100 pF Chip Capacitor, 0402 Pkg.

C4, C6

1000 pF Chip Capacitor, 0603 Pkg.

C5, C7

2.2 µF Capacitor, Tantalum

C8

0.01 µF Chip Capacitor, 0402 Pkg.

L1, L2

56 nH Chip inductor, 0402 Pkg.

L3

36 nH Chip inductor, 0603 Pkg.

r1, r3, r4

0 Ohm resistor, 0402 Pkg.

r5

24 Ohm resistor, 1210 Pkg.

U1

HMC665LP4(e) - Mixer

119242 evaluation Board

[1] reference this number when ordering complete evaluation PCB

[2] Circuit Board Material: Arlon 25Fr

HMC665LP4 / 665LP4E

v00.0508

GaAs MMIC MIXER w/ INTEGRATED

IF & LO AMPLIFIER, 0.7 - 1.2 GHz