hmc276qs24 Hittite Microwave Corporation, hmc276qs24 Datasheet - Page 7

• Manufacturer Part Number: hmc276qs24
• Description: Gaas Mmic 4x2 Switch Matrix, 0.7 - 3.0 Ghz
• Manufacturer: Hittite Microwave Corporation

HMC276QS24
276QS24E
/
v05.1105
GaAs MMIC 4x2 SWITCH
MATRIX, 0.7 - 3.0 GHz
Switch Application Circuit for 4x4 Switch Matrix
The HMC276QS24E switch can operate as a 4x4 switch by
connecting the 4 inputs of two switches directly together.
The VL, VH, HL, and HH inputs of the fi rst switch should be
connected to the second switch, as illustrated.
Mirror image switch performance can be realized by
inverting the HV1 & HV2 logic control signals of one of the
HMC276QS24E switches.
The input loading impedance of two switches in parallel should
be 31.25 ohms. The output loading impedance on each output
should be 75 ohms. The interconnect RF line between the
10
switch’s inputs should be an RF trace with a characteristic
impedance of 62.5 ohms. This will allow the switch to remain
matched in all possible switch states.
The HMC276QS24E does not provide output to output
(OP1 to OP2) isolation. For this reason, It is recommended
that external amplifi ers should be used at each output. The amplifi er’s reverse isolation will provide output to output
isolation, if this is necessary.
Each HMC276QS24E requires DC blocking capacitors on ALL RF input and output ports.
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
10 - 164
20 Alpha Road, Chelmsford, MA 01824 Phone: [phone] Fax: [phone]
Order On-line at www.hittite.com