HMC641 Datasheet, PDF (1/6 Pages) Hittite Microwave Corporation – GaAs MMIC SP4T NON-REFLECTIVE SWITCH, DC - 18 GHz

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Typical Applications
The HMC641 is ideal for:
• Telecom Infrastructure
• Microwave Radio & VSAT
• Military & Space Hybrids
4
• Test Instrumentation
Functional Diagram
HMC641
GaAs MMIC SP4T NON-REFLECTIVE
SWITCH, DC - 18 GHz
Features
Broadband Performance: DC - 18 GHz
High Isolation: 42 dB @ 12 GHz
Low Insertion Loss: 2.1 dB @ 12 GHz
Integrated 2:4 TTL Decoder
Small Size: 1.92 x 1.60 x 0.10 mm
General Description
The HMC641 is a broadband non-reflective GaAs
PHEMT SP4T switch chip. Covering DC to 18 GHz,
this switch offers high isolation and low insertion
loss and extends the frequency coverage of Hittite’s
SP4T switch product line. This switch also includes
an on board binary decoder circuit which reduces
the number of required logic control lines to two. The
switch operates using a negative control voltage of
0/-5V, and requires a fixed Vss bias of -5V. All data
is tested with the chip in a 50 Ohm test fixture con-
nected via one 3.0 x 0.5 mil gold ribbon of minimal
length on each RF port.
Electrical Specifications, T_A = +25° C, With 0/-5V Control, Vss= -5V, 50 Ohm System
Parameter
Frequency
Min.
Typ.
Max.
Units
Insertion Loss
DC - 12 GHz
DC - 18 GHz
1.8
2.1
dB
2.8
3.1
dB
Isolation (RFC to RF1 - RF4)
DC - 12 GHz
39
42
dB
DC - 18 GHz
37
40
dB
Return Loss
Return Loss
DC - 12 GHz
12
15
dB
“On State”
DC - 18 GHz
11
14
dB
“Off State”
DC - 18 GHz
12
15
dB
Input Power for 1 dB Compression
2.05- 18 GHz
21
24
dBm
Input Third Order Intercept
(Two-Tone Input Power= +14 dBm Each Tone)
0.05 - 18 GHz
37
40
dBm
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
DC - 18GHz
14
ns
95
ns
4 - 38
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