HMC347A Datasheet, PDF (1/6 Pages) Analog Devices – High Isolation: >40 dB @ 20 GHz

HMC347A
v01.0916
GaAs pHEMT SPDT NON-REFLECTIVE
SWITCH, DC - 20 GHz
Typical Applications
This switch is suitable DC - 20 GHz applications:
• Fiber Optics
• Microwave Radio
• Military
• Space
• VSAT
Functional Diagram
Features
High Isolation: >40 dB @ 20 GHz
Low Insertion Loss: 2.4 dB @ 20 GHz
Non-Reflective Design
Small Size: 1.22 x 0.85 x 0.1 mm
General Description
The HMC347A is a broadband non-reflective GaAs
pHEMT SPDT MMIC chip. Covering DC to 20 GHz,
the switch offers high isolation and low insertion loss.
The switch features over 52 dB isolation at lower
frequencies and over 40 dB at higher frequencies due
to the implementation of on-chip via hole structures.
The switch operates using two negative control volt-
age logic lines of -5/0V, requires no Vee and has no
current consumption. The switch operates down to
DC. The chip features coplanar I/Os that allow 100%
RF testing prior to delivery to the customer.
Electrical Specifications, T_A = +25° C, With 0/-5V Control, 50 Ohm System
Parameter
Frequency
Min.
Typ.
Insertion Loss
DC - 10.0 GHz
1.7
DC - 20.0 GHz
2.4
Isolation
DC - 10.0 GHz
47
52
DC - 20.0 GHz
35
40
Return Loss
“On State”
DC - 20.0 GHz
9
12
Return Loss RF1, RF2
“Off State”
DC - 20.0 GHz
8
11
Input Power for 1 dB Compression
0.5 - 20.0 GHz
22
29
Input Third Order Intercept
Two-tone Input Power = +10dBm/tone
0.5 - 20.0 GHz
40
45
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
DC - 20.0 GHz
3
10
Max.
2.2
3.0
Units
dB
dB
dB
dB
dB
dB
dBm
dBm
ns
ns
7-1
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