HMC322
v01.0907
GaAs MMIC SP8T NON-REFLECTIVE
SWITCH, DC - 10 GHz
Typical Applications
The HMC322 is ideal for:
• Telecom Infrastructure
• Microwave Radio & VSAT
• Military & Space
Features
Broadband Performance: DC - 10.0 GHz
High Isolation: >38 dB@ 4 GHz
Low Insertion Loss: 2.0 dB@ 4 GHz
Integrated 3:8 TTL Decoder
Small Size: 1.45 x 1.6 x 0.10 mm
• Test Instrumentation
4
Functional Diagram
General Description
The HMC322 is a broadband non-reflective GaAs
MESFET SP8T switch chip. Covering DC to 10 GHz,
this switch offers high isolation and low insertion
loss and extends the frequency coverage of Hittite’s
SP8T switch product line. This switch also includes
an on board binary decoder circuit which reduces
the required logic control lines to three. The switch
operates using a negative control voltage of 0/-5V,
and requires a fixed bias of -5V. All data is tested with
the chip in a 50 Ohm test fixture connected via 0.025
mm (1 mil) diameter wire bonds of 0.5 mm (20 mils)
length.
Electrical Specifications, TA = +25° C, With 0/-5V Control, Vee= -5V, 50 Ohm System
Parameter
Frequency
Min.
Typ.
Max.
Units
DC - 2.0 GHz
DC - 4.0 GHz
DC - 6.0 GHz
DC - 8 GHz
1.9
2.0
2.1
2.2
2.4
2.3
2.4
2.5
2.6
2.8
dB
dB
dB
dB
dB
Insertion Loss
DC - 10.0 GHz
DC - 2.0 GHz
DC - 4.0 GHz
DC - 6.0 GHz
DC - 8 GHz
40
32
27
20
18
46
38
32
26
24
dB
dB
dB
dB
dB
Isolation (RFC to RF1 - 8)
DC - 10.0 GHz
Return Loss
Return Loss
“On State”
“Off State”
DC - 10.0 GHz
DC - 10.0 GHz
0.5 - 10.0 GHz
14
11
23
dB
dB
Input Power for 1 dB Compression
19
34
dBm
Input Third Order Intercept
(Two-Tone Input Power = +7 dBm Each Tone)
0.5 - 10.0 GHz
DC - 10.0 GHz
38
dBm
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
50
150
ns
ns
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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