HMC230MS8 データシートの表示（PDF） - Hittite Microwave
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HMC230MS8 Datasheet PDF : 6 Pages
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v02.0505
Evaluation Circuit Board
6
HMC230MS8 / 230MS8E
4 dB LSB GaAs IC 3-BIT DIGITAL
ATTENUATOR, 0.75 - 2.0 GHz
*R2 = R3 = R4 = 100 Ohm.
These Resistors are optional and may
be used to enhance decoupling of the
RF path from the control inputs.
List of Materials for Evaluation PCB 103155 [1]
Item
J1 - J2
J3 - J6
R1
R2, R3, R4
C1, C2
U1
PCB [2]
Description
PCB Mount SMA Connector
DC Pin
5k Ohm Resistor, 0402 Chip
100 Ohm Resistor, 0402 Chip
0402 Chip Capacitor, Select for Lowest Frequency
of Operation
HMC230MS8 / HMC230MS8E Digital Attenuator
103153 Evaluation PCB 1.25” x 1.5”
The circuit board used in the final application should
use RF circuit design techniques. Signal lines
should have 50 ohm impedance while the pack-
age ground leads 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 cir-
cuit board as shown is available from Hittite Micro-
wave Corporation upon request.
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Rogers 4350
6 - 12
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
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