HMC253LC4
v01.1208
GaAs MMIC SP8T NON-REFLECTIVE
SWITCH, DC - 3.5 GHz
Pin Descriptions
Pin Number
1, 3, 5, 7, 12, 14, 16,
18, 20, 21, 23
2, 4, 6, 13, 15,
17, 19, 22, 24
Function
GND
RF1 - RF8
& RFC
Description
Package bottom has exposed metal paddle that must
also be connected to RF ground.
This pin is DC coupled and matched to 50 Ohms.
Blocking capacitors are required.
Interface Schematic
8
Vdd
Supply Voltage +5.0 Vdc ±10%
9
CTLC
10
CTLB
See truth table and control voltage table.
11
CTLA
Evaluation Circuit Board
12
SWITCHES - MULTI-THROW - SMT
12 - 39
List of Materials for Evaluation PCB 107780
[1]
Item
J1 - J9
J10 - J14
C1 - C9
C10
U1
PCB
[2]
Description
PCB Mount SMA Connector
DC Pin
100 pF Capacitor, 0402 Pkg.
0.01 uF Capacitor, 0603 Pkg.
HMC253LC4 SP8T Switch
104687 Eval Board
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Rogers 4350
The circuit board used in the final application should
be generated with proper RF circuit design techniques.
Signal lines at the RF ports should have 50 ohm
impedance while the package ground leads should be
connected directly to the ground plane similar to that
shown above. A sufficient number of via holes should
be used to connect the top and bottom ground planes.
The evaluation circuit board shown above is available
from Hittite Microwave Corporation upon request.
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
HITTITE [ HITTITE MICROWAVE CORPORATION ]
