HMC681LP5 Datasheet, PDF (10/10 Pages) Hittite Microwave Corporation – 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER w/ SERIAL CONTROL, DC - 1 GHz

Evaluation PCB
HMC681LP5 / 681LP5E
v03.1010
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL VARIABLE
GAIN AMPLIFIER w/ SERIAL CONTROL, DC - 1 GHz
12
List of Materials for Evaluation PCB ^[1]
Item
Description
J1 - J2
PCB Mount SMA Connector
J3
18 Pin DC Connector
J4 - J7, J9
C1, C2, C9, C10
DC Pin
Capacitor, 0402 Pkg. ^[1]
C3 - C5
C6 - C8
100 pF Capacitor, 0402 Pkg.
Capacitor, 0402 Pkg. ^[1]
C11 - C13
1000 pF Capacitor, 0402 Pkg.
C14, C15
2.2 µF Capacitor, CASE A Pkg.
R1, R2
L1, L2
1.8 Ohm Resistor, 0603 Pkg.
Inductor, 0603 Pkg. ^[1]
U1
PCB ^[2]
HMC681LP5(E) Variable Gain Amplifier
119169 Evaluation PCB
[1] Please reference “Components for Selected Frequencies” table.
[2] Circuit Board Material: Arlon 25FR
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
Hittite upon request. Refer to “Components for
Selected Frequencies” table for part number.
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: [phone] Fax: [phone] Order On-line at www.hittite.com
Application Support: Phone: [phone] or [e-mail]
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