HMC349LP4C
/
349LP4CE
v02.1205
HIGH ISOLATION SPDT
NON-REFLECTIVE SWITCH, DC - 4.0 GHz
Typical Applications
The HMC349LP4C / HMC349LP4CE is ideal for:
• Basestation Infrastructure
• MMDS & 3.5 GHz WLL
• CATV/CMTS
Features
High Isolation: 67 dB @ 1 GHz
62 dB @ 2 GHz
Single Positive Control: 0/+5V
+52 dBm Input IP3
Non-Reflective Design
All Off State
8
SWITCHES - SMT
• Test Instrumentation
Functional Diagram
16 mm
2
Leadless QFN SMT Package
General Description
The HMC349LP4C & HMC349LP4CE are high
isolation non-reflective DC to 4 GHz GaAs MESFET
SPDT switches in low cost leadless surface mount
packages. The switch is ideal for cellular/PCS/
3G basestation applications yielding 60 to 65 dB
isolation, low 0.9 dB insertion loss and +52 dBm
input IP3. Power handling is excellent up through the
3.5 GHz WLL band with the switch offering a P1dB
compression point of +31 dBm. On-chip circuitry
allows a single positive voltage control of 0/+5 Volts
at very low DC currents. An enable input (EN) set to
logic high will put the switch in an “all off” state.
Electrical Specifications,
T
A
= +25° C, Vctl = 0/+5 Vdc, Vdd = +5 Vdc, 50 Ohm System
Parameter
Frequency
DC - 1.0 GHz
DC - 2.0 GHz
DC - 3.0 GHz
DC - 4.0 GHz
DC - 1.0 GHz
DC - 4.0 GHz
DC - 2.0 GHz
DC - 3.0 GHz
DC - 4.0 GHz
0.5 - 4.0 GHz
0.25 - 4.0 GHz
0.25 - 1.0 GHz
1.0 - 2.0 GHz
2.0 - 3.0 GHz
3.0 - 4.0 GHz
DC - 4.0 GHz
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
50
120
ns
ns
27
60
55
Min.
Typ.
0.9
1.0
1.2
1.4
67
62
20
15
13
15
31
52
50
49
46
Max.
1.2
1.3
1.5
1.7
Units
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dBm
dBm
dBm
dBm
dBm
Insertion Loss
Isolation (RFC to RF1/RF2)
Return Loss (On State)
Return Loss (Off State)
Input Power for 1 dB Compression
Input Third Order Intercept
(Two-Tone Input Power = +7 dBm Each Tone)
Switching Speed
8 - 220
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
HMC349LP4C
/
349LP4CE
v02.1205
HIGH ISOLATION SPDT
NON-REFLECTIVE SWITCH, DC - 4.0 GHz
Insertion Loss
0
Return Loss
0
-5
RETURN LOSS (dB)
-10
-15
-20
-25
-30
RFC
RF1, RF2 ON
RF1, RF2 OFF
INSERTION LOSS (dB)
-1
-2
+25C
+85C
-40C
-3
8
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
FREQUENCY (GHz)
-4
-5
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
FREQUENCY (GHz)
Note: RFC is reflective in “all off” state.
Isolation Between
Ports RFC and RF1 / RF2
0
-10
-20
ISOLATION (dB)
-30
-40
-50
-60
-70
-80
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
FREQUENCY (GHz)
RF1
RF2
ALL OFF
Isolation Between Ports RF1 and RF2
0
-10
-20
ISOLATION (dB)
-30
-40
-50
-60
-70
-80
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
FREQUENCY (GHz)
RFC-RF1 ON
RFC-RF2 ON
0.1 and 1 dB Input Compression Point
34
INPUT COMPRESSION (dBm)
32
30
Input Third Order Intercept Point
60
58
56
54
IIP3 (dBm)
52
50
48
46
44
+25C
+85C
-40C
28
26
24
22
20
0
1
2
FREQUENCY (GHz)
3
4
0.1 dB Compression Point
1 dB Compression Point
42
40
0
1
2
FREQUENCY (GHz)
3
4
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
8 - 22
SWITCHES - SMT
HMC349LP4C
/
349LP4CE
v02.1205
HIGH ISOLATION SPDT
NON-REFLECTIVE SWITCH, DC - 4.0 GHz
Absolute Maximum Ratings
RF Input Power (Vctl = 0V/+5V)
(0.25 - 4 GHz)
Supply Voltage Range (Vdd)
Control Voltage Range (Vctl)
Hot Switch Power Level
(Vdd = +5V)
+30 dBm (T = +85 °C)
+7 Vdc
-1V to Vdd +1V
+30 dBm
150 °C
0.75 W
87 °C/W
-65 to +150 °C
-40 to +85 °C
Class 1A
Bias Voltage & Current
Vdd Range = +5.0 Vdc ± 10%
Vdd
(Vdc)
+5.0
Idd (Typ.)
(mA)
2.3
Idd (Max.)
(mA)
5.0
8
SWITCHES - SMT
Channel Temperature
Continuous Pdiss (T = 85 °C)
(derate 12 mW/°C above 85 °C)
Thermal Resistance
Storage Temperature
Operating Temperature
ESD Sensitivity (HBM)
TTL/CMOS Control Voltages
State
Low
High
Bias Condition
0 to +0.8 Vdc @ <1 μA Typical
+2.0 to +5.0 Vdc @ 30 μA Typical
Truth Table
Control Input
Vctl
Low
High
EN
Low
Low
High
High
Signal Path State
RFC - RF1
OFF
ON
OFF
OFF
RFC - RF2
ON
OFF
OFF
OFF
Note: DC blocking capacitors are required at ports RFC,
RF1 and RF2. Their value will determine the lowest
transmission frequency.
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
Low
High
8 - 222
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
HMC349LP4C
/
349LP4CE
v02.1205
HIGH ISOLATION SPDT
NON-REFLECTIVE SWITCH, DC - 4.0 GHz
Outline Drawing
8
SWITCHES - SMT
H349
XXXX
H349
XXXX
NOTES:
1. LEADFRAME MATERIAL: COPPER ALLOY
2. DIMENSIONS ARE IN INCHES [MILLIMETERS]
3. LEAD SPACING TOLERANCE IS NON-CUMULATIVE.
4. PAD BURR LENGTH SHALL BE 0.15mm MAXIMUM.
PAD BURR HEIGHT SHALL BE 0.05mm MAXIMUM.
5. PACKAGE WARP SHALL NOT EXCEED 0.05mm.
6. ALL GROUND LEADS AND GROUND PADDLE MUST BE
SOLDERED TO PCB RF GROUND.
7. REFER TO HITTITE APPLICATION NOTE FOR SUGGESTED
LAND PATTERN.
Package Information
Part Number
HMC349LP4C
HMC349LP4CE
Package Body Material
Low Stress Injection Molded Plastic
RoHS-compliant Low Stress Injection Molded Plastic
Lead Finish
Sn/Pb Solder
100% matte Sn
MSL Rating
MSL1
MSL1
[1]
Package Marking
[3]
[2]
[1] Max peak reflow temperature of 235 °C
[2] Max peak reflow temperature of 260 °C
[3] 4-Digit lot number XXXX
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
8 - 22
HMC349LP4C
/
349LP4CE
v02.1205
HIGH ISOLATION SPDT
NON-REFLECTIVE SWITCH, DC - 4.0 GHz
Pin Descriptions
Pin Number
1
Function
Vdd
Description
Supply Voltage.
Interface Schematic
8
SWITCHES - SMT
2
Vctl
Control input. See truth and control voltage tables.
3, 9, 12
RFC, RF1, RF2
These pins are DC coupled and matched to 50 Ohms.
Blocking capacitors are required.
No connection. These pins may be connected to RF
ground. Performance will not be affected.
4, 6, 7, 8,
13, 14, 15, 16
N/C
5
EN
Enable. See truth and control voltage tables.
10, 11
GND
Package bottom must also be connected to
PCB RF ground.
8 - 224
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
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