Data Sheet HMC260ALC3B
Rev. 0 | Page 15 of 16
APPLICATIONS INFORMATION
TYPICAL APPLICATION CIRCUIT
Figure 40 shows the typical application circuit for the
HMC260ALC3B. The HMC260ALC3B is a passive device and
does not require any external components. The LO ad RF pins
are internally ac-coupled. The IF pin is internally dc-coupled.
When IF operation to dc is not required, use of an external series
capacitor of a value chosen to pass the necessary IF frequency
range is recommended. When IF operation to dc is required, do
not exceed the IF source and sink current rating specified in the
Absolute Maximum Ratings section.
13884-041
GND
GND
RF
GND
NIC
NIC
NIC
GND
LO
LO RF
IF
GND
IF
GND
HMC260ALC3B
1
7
8
9
101112
4
2
3
56
Figure 40. Typical Application Circuit
EVALUATION PCB INFORMATION
Use RF circuit design techniques for the circuit board. Ensure
that signal lines have 50 Ω impedance. Connect the package
ground leads and the exposed pad directly to the ground plane
(see Figure 41). Use a sufficient number of via holes to connect
the top and bottom ground planes. The evaluation circuit board
shown in Figure 41 is available from Analog Devices, Inc., upon
request.
Table 5. Bill of Materials
Item Description
J1, J2 PCB mount SRI 2.92 mm connectors
J3 PCB mount Johnson SMA connector
U1 HMC260ALC3B
PCB
1
117611 evaluation board on Rogers 4350
1
117611 is the raw bare PCB identifier. Reference 109728 when ordering the
complete evaluation PCB.
13884-040
J1
J3
IF
LO RF
117611–1
U1
J2
260A
Figure 41. Evaluation PCB Top Layer