HMC321LP4_06 Datasheet, PDF (1/6 Pages) Hittite Microwave Corporation – GaAs MMIC SP8T NON-REFLECTIVE POSITIVE CONTROL SWITCH, DC* - 8.0 GHz

HMC321LP4 / 321LP4E
v03.0805
GaAs MMIC SP8T 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
8
• Switched Filter Banks
• Wireless below 8 GHz
Functional Diagram
Features
Broadband Performance: DC - 8.0 GHz
High Isolation: >30 dB@ 6 GHz
Low Insertion Loss: 2.5 dB@ 6 GHz
Integrated Positve Supply 3:8 TTL Decoder
4x4 mm SMT Package
General Description
The HMC321LP4 & HMC321LP4E are broadband non-
reflective GaAs MESFET SP8T switches in low cost
leadless surface mount packages. Covering DC to
8 GHz, this switch offers high isolation and low inser-
tion loss. This switch also includes an on board binary
decoder circuit which reduces the required logic con-
trol lines to three. The switch operates using a positive
control voltage of 0/+5 volts, and requires a fixed bias
of +5v. This switch is suitable for usage in 50-Ohm or
75-Ohm systems.
* DC blocking capacitors are required at ports RFC and
RF1, 2, 3, 4, 5, 6, 7, 8. Their value will determine the lowest
transmission frequency.
8 - 160
Electrical Specifications, T_A = +25° C, With 0/+5V Control, 50 Ohm System
Parameter
Frequency
Min.
Typ.
Insertion Loss
DC - 2.0 GHz
2.3
DC - 4.0 GHz
2.5
DC - 8.0 GHz
2.7
Isolation
DC - 2.0 GHz
DC - 4.0 GHz
DC - 6.0 GHz
DC - 8.0 GHz
35
40
30
35
25
30
20
25
Return Loss
“On State”
DC - 4.0 GHz
DC - 8.0 GHz
8
12
7
10
Return Loss (RF1 - RF8)
“Off State”
2.0 - 8.0 GHz
7
12
Input Power for 1 dB Compression
0.5 - 8.0 GHz
19
23
Input Third Order Intercept
(Two-tone Input Power = +7 dBm Each Tone, 1 MHz Spacing)
0.5 - 8.0 GHz
33
40
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
50
DC - 8.0 GHz
150
Max.
2.7
2.9
3.1
Units
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dBm
dBm
ns
ns
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