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9 - 8

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

Evaluation PCB

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 con-

nected 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

Hittite upon request.

item

Description

J1 - J7

smA connector

J8 - J10

2mm 12 pos vertical molex connector

c1, c4 - c7

100 pF capacitor, 0402 Pkg.

c8, c9

1000 pF capacitor, 0603 Pkg.

c10

10 nF capacitor, 0402 Pkg.

c11, c13

820 pF capacitor, 0402 Pkg.

c15

0.47 µF capacitor, 0603 Pkg.

c16

1 µF capacitor, 0603 Pkg.

c17

10 nF capacitor, 0603 Pkg.

r1

3.92k ohm resistor, 0402 Pkg.

r2

1.8 ohm resistor, 1206 Pkg.

L2

18 nH inductor, 0603 Pkg.

L3

110 nH inductor, 0603 Pkg.

L4

15 nH inductor, 0603 Pkg.

U1

Hmc621LP4(e) - Downconverter

118869 evaluation Board

[1] reference this number when ordering complete evaluation PcB

[2] circuit Board material: rogers 4350 or Arlon 25rF, Fr4

HMC621LP4 / 621LP4E

v01.0708

RFIC DOWNCONVERTER SMT, 0.9 - 1.6 GHz