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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
HMC347LP3
GaAs MMIC SPDT NON-REFLECTIVE
SWITCH, DC - 14.0 GHz
v03.0604
General Description
Features
Functional Diagram
The HMC347LP3 is a broadband high isolation
non-refl ective GaAs MESFET SPDT switch in
a low cost leadless QFN surface mount plastic
package. Covering DC to 14 GHz, the switch
offers high isolation and low insertion loss. The
switch features >50 dB isolation up to 3 GHz
and >40 dB isolation up to 13 GHz. The switch
operates using complementary negative control
voltage logic lines of -5/0V and requires no bias
supply. This SPDT is an excellent alternative to
the HMC132C8 SPDT.
High Isolation: >50 dB up to 3 GHz
>45 dB up to 10 GHz
Low Insertion Loss: 1.6 dB @ 10 GHz
Non-Refl ective Design
3 x 3 x 1 mm QFN SMT Package
Electrical Specifi cations,
T
A
= +25 C, With 0/-5V Control, 50 Ohm System
Typical Applications
The HMC347LP3 is ideal for:
Basestation Infrastructure
Fiber Optics & Broadband Telecom
Microwave Radio & VSAT
Military Radios, Radar, & ECM
Test Instrumentation
Parameter
Frequency
Min.
Typ.
Max.
Units
Insertion Loss
DC - 3.0 GHz
DC - 6.0 GHz
DC - 12.0 GHz
DC - 14.0 GHz
1.5
1.6
1.6
1.9
1.9
2.0
2.1
2.4
dB
dB
dB
dB
Isolation
DC - 3.0 GHz
DC - 6.0 GHz
DC - 12.0 GHz
DC - 14.0 GHz
49
41
39
33
53
46
44
38
dB
dB
dB
dB
Return Loss
"On State"
DC - 6.0 GHz
DC - 14.0 GHz
10
8
13
13
dB
dB
Return Loss RF1, RF2
"Off State"
DC - 6.0 GHz
DC - 14.0 GHz
7
6
10
9
dB
dB
Input Power for 1 dB Compression
0.5 - 14.0 GHz
19
23
dBm
Input Third Order Intercept
(Two-Tone Input Power= +7 dBm Each Tone)
0.5 - 14.0 GHz
38
43
dBm
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
DC - 14 GHz
3
6
ns
ns
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14
SWITCHES - SMT
-5
-4
-3
-2
-1
0
0
5
10
15
20
+25 C
+85 C
-40 C
INSERTION LOSS (dB)
FREQUENCY (GHz)
-70
-60
-50
-40
-30
-20
-10
0
0
5
10
15
20
RF1
RF2
ISOLATION (dB)
FREQUENCY (GHz)
-25
-20
-15
-10
-5
0
0
5
10
15
20
RFC
RF1,RF2 ON
RF1,RF2 OFF
RETURN LOSS (dB)
FREQUENCY (GHz)
10
15
20
25
30
0
2
4
6
8
10
12
14
16
1 dB Compression Point
0.1 dB Compression Point
INPUT P1dB (dBm)
FREQUENCY (GHz)
30
35
40
45
50
0
2
4
6
8
10
12
14
16
+25C
-40C
+85C
INPUT IP3 (dBm)
FREQUENCY (GHz)
GaAs MMIC SUB-HARMONICALLY PUMPED MIXER 17 - 25 GHz
HMC347LP3
Input Third Order Intercept Point
GaAs MMIC SPDT NON-REFLECTIVE
SWITCH, DC - 14.0 GHz
v03.0604
Return Loss
0.1 and 1 dB Input Compression Point
Insertion Loss
Isolation
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SWITCHES - SMT
14
Truth Table
Control Voltages
HMC347LP3
GaAs MMIC SPDT NON-REFLECTIVE
SWITCH, DC - 14.0 GHz
v03.0604
Outline Drawing
Control Input
Signal Path State
A
B
RFC to RF1
RFC to RF2
High
Low
On
Off
Low
High
Off
On
State
Bias Condition
Low
0 to -0.2V @ 10 uA Max.
High
-5V @ 10 uA Typ. to -7V @ 40 uA Typ. ( 0.5 Vdc)
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.
Caution: Do not "Hot Switch" power levels greater than
+13 dBm (Vctl = 0/-5 Vdc).
Absolute Maximum Ratings
RF Input Power (Vctl = -5V)
+27 dBm
Control Voltage Range (A & B)
+0.5V to -7.5 Vdc
Channel Temperature
150 C
Thermal Resistance
(Insertion Loss Path)
440 C/W
Thermal Resistance
(Terminated Path)
540 C/W
Storage Temperature
-65 to +150 C
Operating Temperature
-55 to +85 C
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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
HMC347LP3
GaAs MMIC SPDT NON-REFLECTIVE
SWITCH, DC - 14.0 GHz
v03.0604
Pin Descriptions
Suggested Driver Circuit
Pin Number
Function
Description
Interface Schematic
1, 5, 9, 12, 16
N/C
This pin should be connected to PCB RF ground to
maximize isolation
2, 4, 6, 8, 13, 15
GND
Package bottom has exposed metal paddle that must also
be connected to PCB RF ground.
3, 7, 14
RFC, RF1, RF2
This pin is DC coupled and matched to 50 Ohm. Blocking
capacitors are required if RF line potential is not equal to 0V.
10
CTLB
See truth table and control voltage table.
11
CTLA
See truth table and control voltage table.
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12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
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SWITCHES - SMT
14
HMC347LP3
GaAs MMIC SPDT NON-REFLECTIVE
SWITCH, DC - 14.0 GHz
v03.0604
Evaluation PCB
The circuit board used in the fi nal application should be
generated with proper RF circuit design techniques. Signal
lines at the RF port should have 50 ohm impedance and
the package ground leads and package bottom should be
connected directly to the ground plane similar to that shown
above. The evaluation circuit board shown above is avail-
able from Hittite Microwave Corporation upon request.
List of Material
Item
Description
J1 - J3
PC Mount SMA RF Connector
J4 - J6
DC Pin
R1 - R2
100 Ohm Resistor, 0603 Pkg.
U1
HMC347LP3 SPDT Switch
PCB*
105696 Evaluation PCB
* Circuit Board Material: Rogers 4350
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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
HMC347LP3
GaAs MMIC SPDT NON-REFLECTIVE
SWITCH, DC - 14.0 GHz
v03.0604
Notes:
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