v04.0604
MICROWAVE CORPORATION
HMC348LP3
Features
High Isolation: >80 dB @ 5 MHz (50 Ohm)
>55 dB @ 1 GHz (50 Ohm)
“All Off” Isolation State
Non-Reflective Design, 75 Ohm Terminations
3 mm x 3 mm x 1 mm SMT Package
GaAs MMIC SPDT NON-REFLECTIVE
CATV SWITCH, DC - 2.5 GHz
Typical Applications
The HMC348LP3 is ideal for:
• 75 Ohm Systems
CATV Signal Distribution, Cable Modem
Headend & DBS IF Switching
• 50 Ohm Systems
Basestation Infrastructure & Test Equipment
Functional Diagram
General Description
The HMC348LP3 is a non-reflective GaAs MESFET
SPDT switch in a low cost leadless QFN surface
mount plastic package ideal for CATV applications.
Covering DC to 2.5 GHz, the switch offers high
isolation, low insertion loss, integrated 75 Ohm ter-
minations and an “all off” state. The switch features
>80 dB isolation at 5 MHz and >55 dB isolation up
to 1 GHz. The switch operates using complemen-
tary positive control voltage logic lines of +5/0V and
requires a +5V bias supply (Vdd). This switch offers
excellent performance in both 50 Ohm & 75 Ohm
systems for either SPDT or SPST functions.
14
SWITCHES - SMT
Electrical Specifications,
T
A
= +25° C, With 0/+5V Control, 50 Ohm System
Parameter
Insertion Loss
Frequency
DC - 1000 MHz
DC - 2500 MHz
DC - 250 MHz
DC - 750 MHz
DC - 1000 MHz
DC - 2000 MHz
DC - 2500 MHz
“On State”
“Off State”
DC - 2500 MHz
DC - 1000 MHz
DC - 2500 MHz
50 MHz
1000 MHz
50 MHz
1000 MHz
2500 MHz
50 MHz
1000 MHz
2500 MHz
63
53
50
47
45
15
9
8
20
25
Min.
Typ.
0.6
0.7
68
58
55
52
50
20
12
11
23
28
43
48
51
72
89
80
Max.
0.9
1.0
Units
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
Isolation
Return Loss
Return Loss RF1, RF2
Input Power for 1 dB Compression
Input Third Order Intercept
(Two-Tone Input Power= 0 dBm Each Tone, 6 MHz Tone Separation)
Input Second Order Intercept
(Two-Tone Input Power= 0 dBm Each Tone, 6 MHz Tone Separation)
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
DC - 2500 MHz
25
600
ns
ns
14 - 218
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 ]
