HMC348LP3_06 Datasheet, PDF (1/6 Pages) Hittite Microwave Corporation – GaAs MMIC SPDT NON-REFLECTIVE CATV SWITCH, DC - 2.5 GHz

v05.0805
Typical Applications
The HMC348LP3 / HMC348LP3E is ideal for:
• 75 Ohm Systems
CATV Signal Distribution, Cable Modem
Headend & DBS IF Switching
• 50 Ohm Systems
8
Basestation Infrastructure & Test Equipment
Functional Diagram
HMC348LP3 / 348LP3E
GaAs MMIC SPDT NON-REFLECTIVE
CATV SWITCH, DC - 2.5 GHz
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
3x3 mm SMT Package
General Description
The HMC348LP3 & HMC348LP3E are non-reflective
GaAs MESFET SPDT switches in low cost leadless
QFN surface mount plastic packages ideal for CATV
applications. Covering DC to 2.5 GHz, the switch offers
high isolation, low insertion loss, integrated 75 Ohm
terminations 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 complementary
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.
8 - 214
Electrical Specifications, T_A = +25° C, With 0/+5V Control, 50 Ohm System
Parameter
Insertion Loss
Isolation
Frequency
Min.
Typ.
DC - 1000 MHz
0.6
DC - 2500 MHz
0.7
DC - 250 MHz
63
68
DC - 750 MHz
53
58
DC - 1000 MHz
50
55
DC - 2000 MHz
47
52
DC - 2500 MHz
45
50
Return Loss
“On State”
DC - 2500 MHz
15
20
Return Loss RF1, RF2
“Off State”
DC - 1000 MHz
DC - 2500 MHz
9
8
12
11
Input Power for 1 dB Compression
50 MHz
1000 MHz
20
23
25
28
50 MHz
43
Input Third Order Intercept
(Two-Tone Input Power= 0 dBm Each Tone, 6 MHz Tone Separation)
1000 MHz
48
2500 MHz
51
50 MHz
72
Input Second Order Intercept
(Two-Tone Input Power= 0 dBm Each Tone, 6 MHz Tone Separation)
1000 MHz
89
2500 MHz
80
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
DC - 2500 MHz
25
600
Max.
0.9
1.0
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: [phone] Fax: [phone]
Order On-line at www.hittite.com
Units
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