MICROWAVE CORPORATION
14 - 170
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
SWITCHES - SMT
14
HMC321LP4
GaAs MMIC SP8T NON-REFLECTIVE
POSITIVE CONTROL SWITCH, DC* - 8.0 GHz
v02.0604
General Description
Features
Functional Diagram
The HMC321LP4 is a broadband non-refl ective
GaAs MESFET SP8T switch in a low cost lead-
less surface mount package. Covering DC to 8
GHz, this switch offers high isolation and low
insertion loss. This switch also includes an on
board binary decoder circuit which reduces the
required logic control lines to three. The switch
operates using a positive control voltage of 0/+5
volts, and requires a fi xed bias of +5v. This switch
is suitable for usage in 50-Ohm or 75-Ohm sys-
tems.
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
4 mm x 4 mm x 1 mm SMT Package
Electrical Specifi cations,
T
A
= +25 C, With 0/+5V Control, 50 Ohm System
Typical Applications
This switch is suitable for usage in DC - 8.0 GHz
50-Ohm or 75-Ohm systems:
Broadband
Fiber Optics
Switched Filter Banks
Wireless below 8 GHz
* 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.
Parameter
Frequency
Min.
Typ.
Max.
Units
Insertion Loss
DC - 2.0 GHz
DC - 4.0 GHz
DC - 8.0 GHz
2.3
2.5
2.7
2.7
2.9
3.1
dB
dB
dB
Isolation
DC - 2.0 GHz
DC - 4.0 GHz
DC - 6.0 GHz
DC - 8.0 GHz
35
30
25
20
40
35
30
25
dB
dB
dB
dB
Return Loss
"On State"
DC - 4.0 GHz
DC - 8.0 GHz
8
7
12
10
dB
dB
Return Loss (RF1 - RF8)
"Off State"
2.0 - 8.0 GHz
7
12
dB
Input Power for 1 dB Compression
0.5 - 8.0 GHz
19
23
dBm
Input Third Order Intercept
(Two-tone Input Power = +7 dBm Each Tone, 1 MHz Spacing)
0.5 - 8.0 GHz
33
40
dBm
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
DC - 8.0 GHz
50
150
ns
ns
MICROWAVE CORPORATION
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12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
14
SWITCHES - SMT
-5
-4
-3
-2
-1
0
0
1
2
3
4
5
6
7
8
9
+25 C
-40 C
+85 C
INSERTION LOSS (dB)
FREQUENCY (GHz)
-70
-60
-50
-40
-30
-20
-10
0
0
1
2
3
4
5
6
7
8
9
RF1
RF2
RF3
RF4
RF5
RF6
RF7
RF8
ISOLATION (dB)
FREQUENCY (GHz)
-25
-20
-15
-10
-5
0
0
1
2
3
4
5
6
7
8
9
RFC
RF1-8 ON
RF1-8 OFF
RETURN LOSS (dB)
FREQUENCY (GHz)
10
15
20
25
30
1
2
3
4
5
6
7
8
0.1db Compression Point
1dB Compression Point
INPUT COMPRESSION POINT (dBm)
FREQUENCY (GHz)
30
35
40
45
50
1
2
3
4
5
6
7
8
INPUT THIRD ORDER INTERCEPT (dBm)
FREQUENCY (GHz)
GaAs MMIC SUB-HARMONICALLY PUMPED MIXER 17 - 25 GHz
HMC321LP4
Input Third Order Intercept Point
GaAs MMIC SP8T NON-REFLECTIVE
POSITIVE CONTROL SWITCH, DC - 8.0 GHz
v02.0604
Return Loss
0.1 and 1 dB Input Compression Point
Insertion Loss vs. Temperature
Isolation
MICROWAVE CORPORATION
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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
SWITCHES - SMT
14
HMC321LP4
GaAs MMIC SP8T NON-REFLECTIVE
POSITIVE CONTROL SWITCH, DC - 8.0 GHz
v02.0604
Truth Table
Bias Voltage & Current
Control Voltages
Vdd Range = +5.0 Vdc 10%
Vdd
(Vdc)
Idd (Typ.)
(mA)
Idd (Max.)
(mA)
+5.0
5.0
9.0
State
Bias Condition
Low
0 to +0.8 Vdc @ 5 uA Typical
High
+2.0 to +5.0 Vdc @ 25 uA Typical
Control Input
Signal Path State
A
B
C
RFCOM to:
Low
Low
Low
RF1
High
Low
Low
RF2
Low
High
Low
RF3
High
High
Low
RF4
Low
Low
High
RF5
High
Low
High
RF6
Low
High
High
RF7
High
High
High
RF8
MICROWAVE CORPORATION
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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
14
SWITCHES - SMT
Absolute Maximum Ratings
Note:
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.
HMC321LP4
GaAs MMIC SP8T NON-REFLECTIVE
POSITIVE CONTROL SWITCH, DC - 8.0 GHz
v02.0604
Outline Drawing
NOTES:
1. MATERIAL PACKAGE BODY: LOW STRESS INJECTION MOLDED
PLASTIC SILICA AND SILICON IMPREGNATED.
2. LEAD AND GROUND PADDLE MATERIAL: COPPER ALLOY
3. LEAD AND GROUND PADDLE PLATING: Sn/Pb SOLDER
4. DIMENSIONS ARE IN INCHES [MILLIMETERS].
5. LEAD SPACING TOLERANCE IS NON-CUMULATIVE
6. PAD BURR LENGTH SHALL BE 0.15mm MAXIMUM.
PAD BURR HEIGHT SHALL BE 0.05mm MAXIMUM.
7. PACKAGE WARP SHALL NOT EXCEED 0.05mm.
8. ALL GROUND LEADS AND GROUND PADDLE MUST BE SOLDERED
TO PCB RF GROUND.
9. REFER TO HITTITE APPLICATION NOTE FOR SUGGESTED PCB
LAND
PATTERN.
Bias Voltage Range (Port Vdd)
+7.0 Vdc
Control Voltage Range
(A, B, & C)
-0.5V to Vdd +1.0 Vdc
Storage Temperature
-65 to +150 C
Operating Temperature
-40 to +85 C
Maximum Input Power
Vdd = +5V
+26 dBm
MICROWAVE CORPORATION
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12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
SWITCHES - SMT
14
Pin Number
Function
Description
Interface Schematic
1, 3, 5, 7, 12,
14, 16, 18,
21, 23
GND
Package bottom has exposed metal paddle that must also be
connected to PCB RF ground.
2, 4, 6, 13, 15,
17, 19, 22, 24
RF1 - RF8
& RFC
This pin is DC coupled and matched to 50 Ohm. Blocking
capacitors are required.
8
VDD
Supply Voltage +5V 10%
9
CTLC
See truth table and control voltage table.
10
CTLB
See truth table and control voltage table.
11
CTLA
See truth table and control voltage table.
20
N/C
This pin should be connected to PCB RF ground to
maximize isolation.
HMC321LP4
GaAs MMIC SP8T NON-REFLECTIVE
POSITIVE CONTROL SWITCH, DC - 8.0 GHz
v02.0604
Pin Descriptions
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