7 - 6
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Web Site: www.hittite.com
M I C R O W A V E C O R P O R A T I O N
F
EBRUARY
2001
'99
new!
S
WITCHES
7
SPDT
SMT
The HMC132C8 is a surface mount, low
cost, non-hermetic packaged version of the
HMC132G7 MMIC SPDT switch. The device
is a fast, broadband SPDT switch featuring
high (> 42 dB) isolation over the entire band.
The switch is non-reflective at both RF1 and
RF2 ports. Applications for this device
include T/R switching for 5.2 GHz UNII, 5.8
GHz ISM circuits, WLAN, and S,C and X-
Band Telecom radios.
General Description
BANDWIDTH: DC-8 GHz
HIGH ISOLATION : > 50 dB
NON-REFLECTIVE DESIGN
Features
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Guaranteed Performance,
With 0/-5V control, 50 Ohm System, -55 to +85 deg C
GaAS MMIC SMT HIGH-ISOLATION SPDT SWITCH DC - 8 GHZ
HMC132C8
7 - 7
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Web Site: www.hittite.com
M I C R O W A V E C O R P O R A T I O N
F
EBRUARY
2001
'99
new!
7
S
WITCHES
SPDT
SMT
HMC132C8 SMT HIGH-ISOLATION SPDT SWITCH DC - 8 GHZ
-40
-30
-20
-10
0
RETURN LOSS (dB)
0
2
4
6
8
10
FREQUENCY (GHz)
Input
Output
"Off"
Output
"On"
-70
-60
-50
-40
-30
-20
-10
0
ISOLATION (dB)
0
2
4
6
8
10
FREQUENCY (GHz)
-5
-4
-3
-2
-1
0
INSERTION LOSS (dB)
0
2
4
6
8
10
FREQUENCY (GHz)
Insertion Loss
Isolation
Return Loss
HMC132C8
7 - 8
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Web Site: www.hittite.com
M I C R O W A V E C O R P O R A T I O N
F
EBRUARY
2001
'99
new!
S
WITCHES
7
SPDT
SMT
HMC132C8 SMT HIGH-ISOLATION SPDT SWITCH DC - 8 GHZ
Control Voltages
Schematic
Outline
RF COM
(PIN 7)
RF2
(PIN 4)
RF1
PIN 1)
(PINS 2,3,8 and
BACKSIDE are GND)
A
(PIN 5)
B
(PIN 6)
RF
COM
RF1
PIN 1
PIN 8
0 DEG.
RF GND PLANE
0.157/0.163
0.282/0.298
(3.99/4.14)
(7.16/7.57)
(0.18/0.23)
(0.51/1.02)
(2.41)
COPLANARITY
MAX.
0.197/0.203
(5.00/5.16)
(0.18/0.23)
(0.51 +/- 0.08)
(1.27)
(3.48/3.63)
0.137/0.143
0.020 +/- 0.003 TYP
0.007/0.009 TYP
CHAMFERED
COPLANAR WITH LEADS
0.020/0.040
0.050 TYP
0.177/0.183
0.095
TO 7 DEG.
0.004 (0.10)
MAX.
B
A
GND GND
RF2
GND
HMC
132C8
Truth Table
Do not "HOT" switch power levels > +15 dBm ( V
ctl
= 0/-5Vdc)
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-
Absolute Maximum Ratings
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1.
MATERIAL:
A) PACKAGE BODY & COVER : WHITE ALUMINA (92%)
B) LEADS & PACKAGE BOTTOM: COPPER
2 .
PLATING : ELECTROLYTIC GOLD 100 - 200 MICROINCHES
OVER ELECTROLYTIC NICKEL 100 TO 200 MICROINCHES.
3.
DIMENSIONS ARE IN INCHES (MILLIMETERS).
UNLESS OTHERWISE SPECIFIED TOL. ARE ±0.005(±0.13).
4.
ALL UNLABELED LEADS ARE GROUND. THESE LEADS ARE
CONNECTED INTERNALLY TO THE PACKAGED BOTTOM GROUND.
THE PACKAGE BOTTOM RF GROUND MUST BE SOLDERED TO
THE PCB RF GROUND.
5.
PACKAGE LENGTH AND WIDTH DIMENSIONS SHOWN DO NOT INCLUDE
LID SEAL PROTRUSION. ALLOWABLE PROTRUSION SHALL BE 0.005
(0.127MM) PER SIDE.
HMC132C8
7 - 9
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Web Site: www.hittite.com
M I C R O W A V E C O R P O R A T I O N
F
EBRUARY
2001
'99
new!
7
S
WITCHES
SPDT
SMT
Suggested Driver Circuit for HMC132C8
Simple driver using inexpensive standard logic ICs provides fast switching using minimum DC current.
B
A
GaAs SWITCH
CONTROL
74HC04
(CMOS)
-5 VDC
10K
TTL
OR
CMOS
74HCT04 (TTL)
COMPENSATED
DEVICES
CD4689
Vz=5.1V
Izt=50uA
VCC
GND
GND
VCC
HMC132C8 SMT HIGH-ISOLATION SPDT SWITCH DC - 8 GHZ
HMC132C8
7 - 10
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Web Site: www.hittite.com
M I C R O W A V E C O R P O R A T I O N
F
EBRUARY
2001
'99
new!
S
WITCHES
7
SPDT
SMT
The circuit board used in the final application should use RF circuit design techniques. Signal lines should have
50 ohm impedance while the package ground leads should be connected directly to the ground plane similar to
that shown above. A sufficient number of VIA holes should be used to connect the top and bottom ground planes.
The evaluation circuit board as shown is available from Hittite upon request.
Layout Technique
Grounded Co-Planar Waveguide (GCPW)
Material
Rogers 4350
Dielectric Thickness
0.020" (0.51 mm)
50 Ohm Line Width
0.034" (0.86 mm)
Gap to Ground Edge
0.010" (0.25 mm)
Ground VIA Hole Diameter
0.014" (0.36 mm)
Connectors
SMA-F ( EF - Johnson P/N 142-0701-806)
Evaluation Circuit Board
Evaluation Circuit Board Layout Design Details
HMC132C8 SMT HIGH-ISOLATION SPDT SWITCH DC - 8 GHZ
HMC132C8
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