HMC345ALP3E
v00.0513
GaAs MMIC SP4T NON-REFLECTIVE
POSITIVE CONTROL SWITCH, DC* - 8 GHz
Typical Applications
Features
This switch is suitable for usage in DC - 8.0 GHz 50-
Ohm or 75-Ohm systems:
Broadband Performance: DC - 8 GHz
High Isolation: 35 dB@ 6 GHz
• Broadband
Low Insertion Loss: 2.0 dB@ 6 GHz
Integrated Positive Supply 2:4 TTL Decoder
16 Lead 3x3mm QFN Package: 9 mm²
• Fiber Optics
• Switched Filter Banks
• Wireless below 8 GHz
Functional Diagram
General Description
The HMC345ALP3E is a broadband non-reflective
GaAs MESFET SP4T switch in a low cost leadless
surface mount packages. 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.
* Blocking capacitors are required at ports RFC and RF1,
2, 3, & 4. Their value will determine the lowest transmission
frequency.
Electrical Specifications, TA = +25° C, With 0/+5V Control, 50 Ohm System
Parameter
Frequency
Min.
Typ.
Max.
Units
DC - 2.0 GHz
DC - 6.0 GHz
DC - 8.0 GHz
1.7
2.0
2.4
2.4
2.6
2.9
dB
dB
dB
Insertion Loss
Isolation
DC - 2.0 GHz
DC - 4.0 GHz
DC - 6.0 GHz
DC - 8.0 GHz
37
32
31
27
42
37
35
33
dB
dB
dB
dB
DC - 2.0 GHz
DC - 4.0 GHz
DC - 6.0 GHz
DC - 8.0 GHz
16
16
16
13
dB
dB
dB
dB
Return Loss
“On State”
“Off State”
Return Loss (RF1 - RF4)
2.0 - 8.0 GHz
2.0 - 8.0 GHz
14
28
dB
Input Power for 1 dB Compression
23
37
dBm
Input Third Order Intercept
(Two-Tone Input Power = +10 dBm Each Tone, 1MHz Tone Separation)
2.0 - 8.0 GHz
DC - 8.0 GHz
43
dBm
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
40
100
ns
ns
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
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