MICROWAVE CORPORATION
14 - 188
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
HMC344LP3
GaAs MMIC SP4T NON-REFLECTIVE
SWITCH, DC - 8.0 GHz
v04.0604
General Description
Features
Functional Diagram
The HMC344LP3 is a broadband non-refl ective
GaAs MESFET SP4T switch in a low cost lead-
less surface mount package. Covering DC to 8
GHz, this switch offers high isolation and low
insertion loss and extends the frequency cover-
age of Hittite's SP4T switch product line. This
switch also includes an on board binary decoder
circuit which reduces the required logic control
lines to two. The switch operates using a negative
control voltage of 0/-5V, and requires a fi xed bias
of -5V.
Broadband Performance: DC - 8.0 GHz
High Isolation: 40 dB@ 6 GHz
Low Insertion Loss: 1.8 dB@ 6 GHz
Integrated 2:4 TTL Decoder
LP3 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
Parameter
Frequency
Min.
Typ.
Max.
Units
Insertion Loss
DC - 2.0 GHz
DC - 6.0 GHz
DC - 8.0 GHz
1.6
1.8
2.1
2.0
2.2
2.5
dB
dB
dB
Isolation
DC - 2.0 GHz
DC - 4.0 GHz
DC - 6.0 GHz
DC - 8.0 GHz
43
36
34
31
48
41
40
36
dB
dB
dB
dB
Return Loss
"On State"
DC - 2.0 GHz
DC - 4.0 GHz
DC - 6.0 GHz
DC - 8.0 GHz
12
9
8
5
15
12
11
8
dB
dB
dB
dB
Return Loss
"Off State"
DC - 8.0 GHz
7
10
dB
Input Power for 1 dB Compression
0.5 - 8.0 GHz
17
21
dBm
Input Third Order Intercept
(Two-Tone Input Power = +7 dBm Each Tone)
0.5 - 8.0 GHz
37
40
dBm
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
DC - 8.0 GHz
35
150
ns
ns
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
-5
-4
-3
-2
-1
0
0
1
2
3
4
5
6
7
8
9
+25 C
+85 C
-40 C
INSERTION LOSS (dB)
FREQUENCY (GHz)
-70
-60
-50
-40
-30
-20
-10
0
0
1
2
3
4
5
6
7
8
9
10
RF1
RF2
RF3
RF4
ISOLATION (dB)
FREQUENCY (GHz)
-25
-20
-15
-10
-5
0
0
1
2
3
4
5
6
7
8
9
RFC
RF1,2,3,4 On
RF1,2,3,4 Off
RETURN LOSS (dB)
FREQUENCY (GHz)
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
2
3
4
5
6
7
8
9
1dB Compression Point
0.1dB Compression Point
INPUT COMPRESSION POINT (dBm)
FREQUENCY (GHz)
35
36
37
38
39
40
41
42
43
44
45
1
2
3
4
5
6
7
8
9
RF1
RF2
RF3
RF4
iNPUT THIRD ORDER INTERCEPT (dBm)
FREQUENCY (GHz)
GaAs MMIC SUB-HARMONICALLY PUMPED MIXER 17 - 25 GHz
HMC344LP3
Input Third Order Intercept Point
GaAs MMIC SP4T NON-REFLECTIVE
SWITCH, DC - 8.0 GHz
Return Loss
0.1 and 1 dB Input Compression Point
Insertion Loss vs. Temperature
Isolation
* Isolation is recorded above insertion loss & measured at output of switch.
v04.0604
MICROWAVE CORPORATION
14 - 190
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
HMC344LP3
GaAs MMIC SP4T NON-REFLECTIVE
SWITCH, DC - 8.0 GHz
Truth Table
Bias Voltage & Current
Control Voltages
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.
Control Input
Signal Path State
A
B
RFCOM to:
High
High
RF1
Low
High
RF2
High
Low
RF3
Low
Low
RF4
State
Bias Condition
Low
-3V to 0 Vdc @ 60 uA Typical
High
-5 to -4.2 Vdc @ 5 uA Typical
Vee Range = -5.0 Vdc 10%
Vee
(Vdc)
Iee (Typ.)
(mA)
Iee (Max.)
(mA)
-5.0
3.0
6.0
v04.0604
Absolute Maximum Ratings
Bias Voltage Range (Vee)
-7.0 Vdc
Control Voltage Range (A & B)
Vee -0.5V to +1.0 Vdc
Channel Temperature
150 C
Thermal Resistance
(Insertion Loss Path)
143 C/W
Thermal Resistance
(Terminated Path)
1,030 C/W
Storage Temperature
-65 to +150 C
Operating Temperature
-40 to +85 C
Maximum Input Power
+24 dBm
MICROWAVE CORPORATION
14 - 191
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
HMC344LP3
GaAs MMIC SP4T NON-REFLECTIVE
SWITCH, DC - 8.0 GHz
v04.0604
Pin Number
Function
Description
Interface Schematic
1, 4,
9, 12, 15
RF4, RF3, RF2,
RF1, RFC
This pin is DC coupled and matched to 50 Ohm. Blocking
capacitors are required if RF line potential is not equal to 0V.
2, 3,
10, 11, 13
N/C
This pin should be connected to PCB RF ground to maximize
isolation.
5, 14, 16
GND
Package bottom has exposed metal paddle that must also be
connected to PCB RF ground.
6
VEE
Supply Voltage -5V 10%
7
CTLB
See truth table and control voltage table.
8
CTLA
See truth table and control voltage table.
Pin Descriptions
MICROWAVE CORPORATION
14 - 192
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
HMC344LP3
GaAs MMIC SP4T NON-REFLECTIVE
SWITCH, DC - 8.0 GHz
v04.0604
TTL Interface Circuit
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