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SWITCHES - SMT
10
10 - 256
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
HMC427LP3 / 427LP3E
GaAs MMIC POSITIVE CONTROL
TRANSFER SWITCH, DC* - 8 GHz
v07.0805
General Description
Features
Functional Diagram
The HMC427LP3 & HMC427LP3E are low loss
broadband positive control transfer switches in
leadless surface mount packages. Covering DC to 8
GHz, this switch offers high isolation and low insertion
loss. The switch operates using a positive control
voltage of 0/+5V and requires a xed bias of +5V @
< 20 μA.
High Isolation: 40 ~ 45 dB thru 6 GHz
Low Insertion Loss: 1.2 dB@ 6 GHz
Non-Re ective Design
3 x 3 mm SMT Package
Electrical Speci cations, TA = +25° C, With 0/+5V Control, 50 Ohm System
Typical Applications
The HMC427LP3 / HMC427LP3E is ideal for:
• Test Instrumentation
• Fiber Optics & Broadband Telecom
• Basestation Infrastructure
• Microwave Radio & VSAT
• Military Radios, Radar, & ECM
* Blocking capacitors are required at ports RF1, 2, 3, &
4. Their value will determine the lowest transmission fre-
quency.
Parameter Frequency Min. Typ. Max. Units
Insertion Loss DC - 6.0 GHz
DC - 8.0 GHz
1.2
1.6
1.6
2.1
dB
dB
Isolation
DC - 1.0 GHz
DC - 2.0 GHz
DC - 6.0 GHz
DC - 8.0 GHz
42
37
33
27
48
42
38
32
dB
dB
dB
dB
Return Loss DC - 6.0 GHz
DC - 8.0 GHz
17
15
dB
dB
Input Power for 1 dB Compression 1.0 - 8.0 GHz 23 26 dBm
Input Third Order Intercept
(Two-Tone Input Power= +7 dBm Each Tone, 1 MHz Tone Separation) 1.0 - 8.0 GHz 37 43 dBm
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
DC - 8.0 GHz
2
4
ns
ns
SWITCHES - SMT
10
10 - 257
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
Return Loss 0.1 and 1 dB Input Compression Point
Insertion Loss vs. Temperature Isolation
-5
-4
-3
-2
-1
0
0123456789
+25 C
+85 C
-40 C
INSERTION LOSS (dB)
FREQUENCY (GHz)
-60
-50
-40
-30
-20
-10
0
0123456789
RF4 to RF1
RF2 to RF3
RF4 to RF2
RF1 to RF3
ISOLATION (dB)
FREQUENCY (GHz)
-30
-25
-20
-15
-10
-5
0
0123456789
RF1
RF2
RF3
RF4
RETURN LOSS (dB)
FREQUENCY (GHz)
10
12
14
16
18
20
22
24
26
28
30
123456789
1 dB Compression Point
0.1 dB Compression Point
INPUT COMPRESSION POINT (dBm)
FREQUENCY (GHz)
20
25
30
35
40
45
50
123456789
+25 C
+85 C
-40 C
INPUT THIRD ORDER INTERCEPT POINT (dBm)
FREQUENCY (GHz)
Input Third Order Intercept Point
HMC427LP3 / 427LP3E
GaAs MMIC POSITIVE CONTROL
TRANSFER SWITCH, DC* - 8 GHz
v07.0805
SWITCHES - SMT
10
10 - 258
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
Truth Table
Control Voltages
Bias Voltage & Current
Vdd Range = +5.0 Vdc ± 10 %
Vdd
(Vdc)
Idd (Typ.)
(μA)
Idd (Max.)
(μA)
+5.0 5 10
State Bias Condition
Low 0 to +0.2 Vdc @ 5 μA Typical
High Vdd ± 0.2 Vdc @ 5 μA Typical
Control Input Signal Path State
AB
RF4 to
RF2
RF1 to
RF3
RF4 to
RF1
RF2 to
RF3
Low High On On Off Off
High Low Off Off On On
Absolute Maximum Ratings
Bias Voltage Range (Vdd) +7.0 Vdc
Control Voltage Range (A & B) -0.5V to Vdd +1.0 Vdc
Channel Temperature 150 °C
Thermal Resistance 130 °C/W
Storage Temperature -65 to +150 °C
Operating Temperature -40 to +85 °C
Maximum Input Power +27 dBm
ESD Sensitivity (HBM) Class 1A
Note:
DC blocking capacitors are required at ports RF1, 2, 3, &
4. Their value will determine the lowest transmission fre-
quency.
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
HMC427LP3 / 427LP3E
GaAs MMIC POSITIVE CONTROL
TRANSFER SWITCH, DC* - 8 GHz
v07.0805
SWITCHES - SMT
10
10 - 259
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
Outline Drawing
HMC427LP3 / 427LP3E
GaAs MMIC POSITIVE CONTROL
TRANSFER SWITCH, DC* - 8 GHz
v07.0805
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.
Part Number Package Body Material Lead Finish MSL Rating Package Marking [3]
HMC427LP3 Low Stress Injection Molded Plastic Sn/Pb Solder MSL1 [1] 427
XXXX
HMC427LP3E RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL1 [2] 427
XXXX
[1] Max peak re ow temperature of 235 °C
[2] Max peak re ow temperature of 260 °C
[3] 4-Digit lot number XXXX
Package Information
SWITCHES - SMT
10
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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
Pin Descriptions
Pin Number Function Description Interface Schematic
1, 4, 9, 12 RF4, RF1, RF3,
RF2
This pin is DC coupled and matched to 50 Ohm.
Blocking capacitors are required.
2, 3, 5, 8,
10, 11, 13,
14, 16
N/C This pin should be connected to PCB RF
ground to maximize isolation.
GND Package bottom has exposed metal paddle that
must be connected to PCB RF ground.
6 CTRLA See truth table and control voltage table.
7 CTRLB See truth table and control voltage table.
15 VDD Supply Voltage +5V ± 10%.
HMC427LP3 / 427LP3E
GaAs MMIC POSITIVE CONTROL
TRANSFER SWITCH, DC* - 8 GHz
v07.0805
SWITCHES - SMT
10
10 - 261
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
Evaluation PCB
The circuit board used in the nal application should
be generated with proper RF circuit design tech-
niques. 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 eval-
uation circuit board shown above is available from
Hittite Microwave Corporation upon request.
Item Description
J1 - J4 PCB Mount SMA RF Connector
J5 - J8 DC Pin
C1 1000 pF Capacitor, 0603 Pkg.
C2 - C5 100 pF Capacitor, 0402 Pkg.
R1 - R2 100 Ohm Resistor, 0603 Pkg.
U1 HMC427LP3 / HMC427LP3E
Transfer Switch
PCB [2] 105674 Evaluation PCB
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Rogers 4350
HMC427LP3 / 427LP3E
GaAs MMIC POSITIVE CONTROL
TRANSFER SWITCH, DC* - 8 GHz
v07.0805
List of Materials for Evaluation PCB 105672 [1]
