HMC862A Data Sheet
Rev. 0 | Page 14 of 15
EVALUATION BOARD OVERVIEW
Use the EV1HMC862ALP3 evaluation board to evaluate the
HMC862A.
The HMC862A is enabled by applying 5 V between J6 (V
CC
)
and J7 (GND). Note that J6 only provides power to Pin 13 on
the HMC862A; however, because Pin 13 and Pin 16 are
internally connected, both V
CC
pins receive power.
The divide ratio, N, is selected by inserting pin jumpers on
Component J5, as shown in Table 6. When installed, a jumper
pulls the digital input pin to ground and sets a logic low. When
removed, the R1, R2, and R3 pull-up resistors pull the digital
input to V
CC
and set a logic high.
Table 6. Jumper Configuration for EV1HMC862ALP3
Divide Ratio (N) S0 Jumper S1 Jumper S2 Jumper
1 Installed Installed Installed
2 Open Installed Installed
4 Open Open Installed
8 Open Open Open
By default, the evaluation board is set up to accept a single-
ended input and provide a differential output. A differential
input can be used by removing Component C5; a single-ended
output can be generated by terminating J4 with a 50 Ω
termination.
It is recommended that the circuit board used in the application
use RF circuit design techniques with a 50 Ω impedance on the
signal lines and with the package ground leads and backside
ground pad connected directly to the ground plane. Use a
sufficient number of via holes to connect the top and bottom
ground planes. The evaluation circuit board shown is available
from Analog Devices, Inc., upon request.
Table 7. List of Materials for EV1HMC862ALP3
Item Description
J1 to J4 PCB-mount K connector
J5 DC connector header, Molex 2 mm
C1 to C5
ATC550L104KTT, 100 nF, 16 V, broadband capacitor,
0402 package
C6 1000 pF capacitor, 0603 package
C7 2.2 μF capacitor, tantalum, 3216 package
R1 to R3 10 kΩ resistor, 0402 package
J6, J7
Mill-Max 0.040 inch diameter PC pin, 3101-2-00-21-00-
00-08-0
U1 HMC862A, programmable divider
Heatsink Custom heatsink, alumimum
PCB 600-01663-00-1 evaluation board
