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
SWITCHES - MULTI-THROW - SMT
1
HMC345ALP3E
v00.0513
GaAs MMIC SP4T NON-REFLECTIVE
POSITIVE CONTROL SWITCH, DC* - 8 GHz
General Description
Features
Functional Diagram
The HMC345ALP3E is a broadband non-reective
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 xed bias of +5V.
Broadband Performance: DC - 8 GHz
High Isolation: 35 dB@ 6 GHz
Low Insertion Loss: 2.0 dB@ 6 GHz
Integrated Positive Supply 2:4 TTL Decoder
16 Lead 3x3mm QFN Package: 9 mm²
Electrical Specications, T
A
= +25° C, With 0/+5V Control, 50 Ohm System
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
* Blocking capacitors are required at ports RFC and RF1,
2, 3, & 4. Their value will determine the lowest transmission
frequency.
Parameter Frequency Min. Typ. Max. Units
Insertion Loss
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
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
Return Loss “On State”
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 (RF1 - RF4) “Off State” 2.0 - 8.0 GHz 14 dB
Input Power for 1 dB Compression 2.0 - 8.0 GHz 23 28 dBm
Input Third Order Intercept
(Two-Tone Input Power = +10 dBm Each Tone, 1MHz Tone Separation)
2.0 - 8.0 GHz 37 43 dBm
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
DC - 8.0 GHz
40
100
ns
ns
