MICROWAVE CORPORATION
v03.0604
HMC345LP3
Features
Broadband Performance: DC - 8.0 GHz
High Isolation: 35 dB@ 6 GHz
Low Insertion Loss: 2.2 dB@ 6 GHz
Integrated Positive Supply 2:4 TTL Decoder
3 mm x 3 mm x 1 mm SMT Package
GaAs MMIC SP4T NON-REFLECTIVE
POSITIVE CONTROL SWITCH, DC* - 8.0 GHz
Typical Applications
This switch is suitable for usage in DC - 8.0 GHz
50-Ohm or 75-Ohm systems:
•
Broadband
•
Fiber Optics
•
Switched Filter Banks
•
Wireless below 8 GHz
Functional Diagram
General Description
The HMC345LP3 is a broadband non-reflective
GaAs MESFET SP4T switch in a low cost lead-
less surface mount package. Covering DC to 8
GHz, this switch offers high isolation and low
insertion loss. This switch also includes an on
board binary decoder circuit which reduces the
required logic control lines to two. The switch
operates using a positive control voltage of 0/+5V,
and requires a fixed bias of +5V.
14
SWITCHES - SMT
* Blocking capacitors are required at ports RFC and
RF1, 2, 3, & 4. Their value will determine the lowest
transmission frequency.
Electrical Specifications,
T
A
= +25° C, With 0/+5V Control, 50 Ohm System
Parameter
Frequency
DC - 2.0 GHz
DC - 6.0 GHz
DC - 8.0 GHz
DC - 2.0 GHz
DC - 4.0 GHz
DC - 6.0 GHz
DC - 8.0 GHz
DC - 2.0 GHz
DC - 4.0 GHz
DC - 6.0 GHz
DC - 8.0 GHz
2.0 - 8.0 GHz
2.0 - 8.0 GHz
2.0 - 8.0 GHz
DC - 8.0 GHz
50
120
ns
ns
37
32
31
27
10
8
7
6
6
17
37
Min.
Typ.
2.0
2.2
2.4
42
37
35
32
13
11
10
9
10
21
45
Max.
2.4
2.6
2.9
Units
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dBm
dBm
Insertion Loss
Isolation
Return Loss
“On State”
Return Loss (RF1 - RF4)
Input Power for 1 dB Compression
“Off State”
Input Third Order Intercept
(Two-Tone Input Power = +7 dBm Each Tone, 1MHz Tone Separation)
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
14 - 194
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
HITTITE [ HITTITE MICROWAVE CORPORATION ]
