v00.0304
MICROWAVE CORPORATION
HMC349MS8G
Features
High Isolation: 70 dB @ 1 GHz
57 dB @ 2 GHz
Single Positive Control: 0/+5V
+52 dBm Input IP3
Non-Re鏗俥ctive Design
All Off State
HIGH ISOLATION SPDT
NON-REFLECTIVE SWITCH, DC - 4.0 GHz
Typical Applications
The HMC349MS8G is ideal for:
鈥?Basestation Infrastructure
鈥?MMDS & 3.5 GHz WLL
鈥?CATV/CMTS
鈥?Test Instrumentation
Functional Diagram
Ultra Small MS8G SMT Package: 14.8 mm
2
General Description
The HMC349MS8G is a high isolation non-
re鏗俥ctive DC to 4 GHz GaAs MESFET SPDT
switch in a low cost 8 lead MSOP8G surface
mount package with an exposed ground paddle.
The switch is ideal for cellular/PCS/3G basestation
applications yielding 50 to 60 dB isolation, low 0.8
dB insertion loss and +52 dBm input IP3. Power
handling is excellent up through the 3.5 GHz WLL
band with the switch offering a P1dB compression
point of +31 dBm. On-chip circuitry allows a
single positive voltage control of 0/+5 Volts at very
low DC currents. An enable input (EN) set to logic
high will put the switch in an 鈥渁ll off鈥?state.
14
SWITCHES - SMT
Electrical Speci鏗乧ations,
T
A
= +25擄 C, Vctl = 0/+5 Vdc, Vdd = +5 Vdc, 50 Ohm System
Parameter
Frequency
DC - 1.0 GHz
DC - 2.0 GHz
DC - 3.0 GHz
DC - 4.0 GHz
DC - 1.0 GHz
DC - 2.0 GHz
DC - 3.0 GHz
DC - 4.0 GHz
DC - 1.0 GHz
DC - 2.0 GHz
DC - 3.0 GHz
DC - 4.0 GHz
0.5 - 2.0 GHz
0.5 - 3.0 GHz
0.5 - 4.0 GHz
0.25 - 4.0 GHz
0.25 - 1.0 GHz
1.0 - 2.0 GHz
2.0 - 3.0 GHz
3.0 - 4.0 GHz
DC - 4.0 GHz
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
40
120
ns
ns
27
60
54
45
42
Min.
Typ.
0.8
0.9
1.2
1.8
70
57
50
47
23
18
13
8
20
17
14
31
53
50
49
47
Max.
1.1
1.2
1.5
2.1
Units
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dBm
dBm
dBm
dBm
dBm
Insertion Loss
Isolation (RFC to RF1/RF2)
Return Loss (On State)
Return Loss (Off State)
Input Power for 1 dB Compression
Input Third Order Intercept
(Two-Tone Input Power = +7 dBm Each Tone)
Switching Speed
14 - 230
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
1
2
3
4
5
6
