HMC680LP4 Datasheet, PDF (8/8 Pages) Hittite Microwave Corporation – BiCMOS MMIC 5-BIT DIGITAL VARIABLE GAIN AMPLIFIER, 30 - 400 MHz

Evaluation PCB
HMC680LP4 / 680LP4E
v03.0609
BiCMOS MMIC 5-BIT DIGITAL
VARIABLE GAIN AMPLIFIER, 30 - 400 MHz
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List of Materials for Evaluation PCB 115585 ^[1]
Item
J1 - J2
J3
C1 - C8, C11 - C14
C9
C10
C15
L1, L2
L3, L4
Description
PCB Mount SMA Connector
12 Pin DC Connector
1000 pF Capacitor, 0402 Pkg.
100 pF Capacitor, 0402 Pkg.
10k pF Capacitor, 0402 Pkg.
4.7 μF Tantalum Capacitor, Case A Size
680 nH Inductor, 0805 Pkg.
330 nH Inductor, 0603 Pkg.
The circuit board used in the final 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.
L5
100 nH Inductor, 0603 Pkg.
R1
680 Ohm Resistor, 0603 Pkg.
R2 - R6
39k Ohm Resistor, 0402 Pkg.
R7, R8
0 Ohm Resistor, 0402 Pkg.
T1, T2
1:1 RF Transformer, MA/COM SMT
Balun (ETC1-1-13)
U1
HMC680LP4(E) Variable Gain Amplifier
PCB ^[2]
115584 Evaluation PCB
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Arlon 25FR or Rogers 4350
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: [phone] Fax: [phone]
Order On-line at www.hittite.com
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