THIS PAGE INTENTIONALLY LEFT BLANK
11
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
SWITCHES - SPDT - SMT
11 - 160
v03.0809 GaAs MMIC 10W FAILSAFE SWITCH
0.2 - 2.7 GHz
General Description
Features
Functional Diagram
High Input P0.1dB: +40 dBm Tx
Low Insertion Loss: 0.4 dB
High Input IP3: +67 dBm
Positive Control: 0/+3V to 0/+8V
Failsafe Operation - Tx “On” When Unpowered
Electrical Speci cations, TA = +25°C, Vctl = 0/+3 Vdc, 50 Ohm System*
Typical Applications
The HMC546LP2 / HMC546LP2E is ideal for:
• LNA Protection, WiMAX & WiBro
• Cellular/PCS/3G & TD-SCDMA Infrastructure
• Private Mobile Radio & Public Safety Handsets
• Automotive Telematics
The HMC546LP2 & HMC546LP2E are failsafe
SPDT switches in leadless DFN surface mount
plastic packages for use in transmit-receive, and
LNA protection applications which require very
low distortion and high power handling of up to 10
watts. The device can control signals from 200 -
2700 MHz* and is especially suited for WiMAX and
WiBro repeaters, PMR and automotive telematic
applications. The design provides exceptional P0.1dB
of +40 dBm and +65 dBm IIP3 on the Transmit (Tx)
port. The failsafe topology allows the switch to pro-
vide a low loss path from RFC to Tx, when no DC
power is available.
HMC546LP2 / 546LP2E
Parameter Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Min. Typ. Max Units
Frequency Range 1805 - 1910 2010 - 2025 2300 - 2480 2500 - 2700 MHz
Insertion Loss Tx - RFC
RFC - Rx
0.3
0.4
0.6
0.7
0.4
0.3
0.7
0.6
0.6
1.1
0.8
1.5
0.5
0.7
0.8
1.1
dB
dB
Isolation Tx - RFC
RFC - Rx
15
22
23
30
14
20
22
27
15
25
20
30
10
30
15
40
dB
dB
Return Loss Tx - RFC
RFC - Rx
25
25
20
25
22
10
20
12
dB
dB
Input Power for 0.1 dB
Compression
Tx - RFC
RFC - Rx
38
19
40
21
39
19
41
21
36.5
17
38.5
19
38.5
18
40.5
20
dBm
dBm
Input Third Order
Intercept
(Two-tone input power =
+19 dBm each tone)
Tx - RFC
Vctl = 0/+3V RFC - Rx
Tx - RFC
Vctl = 0/+5V RFC - Rx
65
33
66
44
64
32
64
45
67
33
67
45
62
32
62
43
dBm
dBm
dBm
dBm
Switching
Characteristics
tRISE, tFALL (10/90% RF)
tON, (50% CTL to 90% RF)
tOFF (50% CTL to 10% RF)
21
102
36
21
102
36
21
102
36
21
102
36
ns
ns
ns
TA = +25° C, Vctl & Vdd Unpowered
Insertion Loss Tx - RFC 0.3 0.6 0.4 0.7 0.6 0.8 0.5 0.8 dB
Isolation RFC - Rx 15 23 15 22 15 20 10 15 dB
Return Loss Tx - RFC 25 20 22 20 dB
Input Power for 0.1 dB Compression Tx - RFC 38 40 39 41 36.5 38.5 38.5 40.5 dBm
* Speci cations and data re ect HMC546LP2(E) measured using the respective application circuits for each
designated frequency band found herein
11
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
SWITCHES - SPDT - SMT
11 - 161
Input IP3 vs. Voltage with 1843 MHz Tuning
Return Loss with 1843 MHz Tuning
Insertion Loss vs.
Temperature, Tx with 1843 MHz Tuning
Isolation with 1843 MHz Tuning
-3
-2.5
-2
-1.5
-1
-0.5
0
1.75 1.8 1.85 1.9 1.95
Tx, +25C
Tx, +85C
Tx, -40C
INSERTION LOSS (dB)
FREQUENCY (GHz)
Insertion Loss vs.
Temperature, Rx with 1843 MHz Tuning
-40
-35
-30
-25
-20
-15
-10
-5
0
1.75 1.8 1.85 1.9 1.95
Tx, Input
Tx, Output
Rx, Input
Rx, Output
RETURN LOSS (dB)
FREQUENCY (GHz)
20
25
30
35
40
45
50
55
60
65
70
75
345678
RFC to Tx
RFC to Rx
IP3 (dBm)
VOLTAGE (V)
-45
-40
-35
-30
-25
-20
-15
-10
-5
0
1.75 1.8 1.85 1.9 1.95
RFC to Tx
RFC to Rx
ISOLATION (dB)
FREQUENCY (GHz)
-3
-2.5
-2
-1.5
-1
-0.5
0
1.75 1.8 1.85 1.9 1.95
Tx, +25C
Tx, +85C
Tx, -40C
INSERTION LOSS (dB)
FREQUENCY (GHz)
HMC546LP2 / 546LP2E
v03.0809
GaAs MMIC 10W FAILSAFE SWITCH
0.2 - 2.7 GHz
11
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
SWITCHES - SPDT - SMT
11 - 162
Input IP3 vs. Voltage with 2015 MHz Tuning
Return Loss with 2015 MHz Tuning
Insertion Loss vs.
Temperature, Tx with 2015 MHz Tuning
Isolation with 2015 MHz Tuning
Insertion Loss vs.
Temperature, Rx with 2015 MHz Tuning
-3
-2.5
-2
-1.5
-1
-0.5
0
1.9 1.95 2 2.05 2.1
Rx, +25C
Rx, +85C
Rx, -40C
INSERTION LOSS (dB)
FREQUENCY (GHz)
-35
-30
-25
-20
-15
-10
-5
0
1.9 1.95 2 2.05 2.1
Tx, Input
Tx, Output
Rx, Input
Rx, Output
RETURN LOSS (dB)
FREQUENCY (GHz)
20
25
30
35
40
45
50
55
60
65
70
75
345678
RFC to Tx
RFC to Rx
IP3 (dBm)
VOLTAGE (V)
-35
-30
-25
-20
-15
-10
-5
0
1.9 1.95 2 2.05 2.1
RFC to Tx
RFC to Rx
ISOLATION (dB)
FREQUENCY (GHz)
-3
-2.5
-2
-1.5
-1
-0.5
0
1.9 1.95 2 2.05 2.1
Tx, +25C
Tx, +85C
Tx, -40C
INSERTION LOSS (dB)
FREQUENCY (GHz)
HMC546LP2 / 546LP2E
v03.0809
GaAs MMIC 10W FAILSAFE SWITCH
0.2 - 2.7 GHz
11
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
SWITCHES - SPDT - SMT
11 - 163
Input IP3 vs. Voltage with 2350 MHz Tuning
Return Loss with 2350 MHz Tuning
Insertion Loss vs.
Temperature, Tx with 2350 MHz Tuning
Isolation with 2350 MHz Tuning
Insertion Loss vs.
Temperature, Rx with 2350 MHz Tuning
-3
-2.5
-2
-1.5
-1
-0.5
0
2.3 2.35 2.4 2.45 2.5
Rx, +25C
Rx, +85C
Rx, -40C
INSERTION LOSS (dB)
FREQUENCY (GHz)
-35
-30
-25
-20
-15
-10
-5
0
2.3 2.35 2.4 2.45 2.5
Tx, Input
Tx, Output
Rx, Input
Rx, Output
RETURN LOSS (dB)
FREQUENCY (GHz)
20
25
30
35
40
45
50
55
60
65
70
75
345678
RFC to Tx
RFC to Rx
IP3 (dBm)
VOLTAGE (V)
-45
-40
-35
-30
-25
-20
-15
-10
-5
0
2.3 2.35 2.4 2.45 2.5
RFC to Tx
RFC to Rx
ISOLATION (dB)
FREQUENCY (GHz)
-3
-2.5
-2
-1.5
-1
-0.5
0
2.3 2.35 2.4 2.45 2.5
Tx, +25C
Tx, +85C
Tx, -40C
INSERTION LOSS (dB)
FREQUENCY (GHz)
HMC546LP2 / 546LP2E
v03.0809
GaAs MMIC 10W FAILSAFE SWITCH
0.2 - 2.7 GHz
11
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
SWITCHES - SPDT - SMT
11 - 164
Input IP3 vs. Voltage with 2600 MHz Tuning
Return Loss with 2600 MHz Tuning
Insertion Loss vs.
Temperature, Tx with 2600 MHz Tuning
Isolation with 2600 MHz Tuning
Insertion Loss vs.
Temperature, Rx with 2600 MHz Tuning
-3
-2.5
-2
-1.5
-1
-0.5
0
2.5 2.55 2.6 2.65 2.7
Rx, +25C
Rx, +85C
Rx, -40C
INSERTION LOSS (dB)
FREQUENCY (GHz)
-40
-35
-30
-25
-20
-15
-10
-5
0
2.5 2.55 2.6 2.65 2.7
Tx, Input
Tx, Output
Rx, Input
Rx, Output
RETURN LOSS (dB)
FREQUENCY (GHz)
20
25
30
35
40
45
50
55
60
65
70
75
345678
RFC to Tx
RFC to Rx
IP3 (dBm)
VOLTAGE (V)
-35
-30
-25
-20
-15
-10
-5
0
2.5 2.55 2.6 2.65 2.7
RFC to Tx
RFC to Rx
ISOLATION (dB)
FREQUENCY (GHz)
-3
-2.5
-2
-1.5
-1
-0.5
0
2.5 2.55 2.6 2.65 2.7
Tx, +25C
Tx, +85C
Tx, -40C
INSERTION LOSS (dB)
FREQUENCY (GHz)
HMC546LP2 / 546LP2E
v03.0809
GaAs MMIC 10W FAILSAFE SWITCH
0.2 - 2.7 GHz
11
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
SWITCHES - SPDT - SMT
11 - 165
Absolute Maximum Ratings
Outline Drawing
Vdd = 3V Vdd = 5V
Max. CW Input Power [1][2] Tx Por t
Rx Port
40 dBm
24 dBm
40 dBm
29 dBm
Max Channel Temp. 150 °C 150 °C
Thermal Resistance Tx Por t
Rx Port
54 °C/W
68 °C/W
54 °C/W
86 °C/W
Continuous Dissipated
Power
Tx Por t
Rx Port
1.12 W
73 mW
1.12 W
232 mW
Supply Voltage (Vdd) +10V
Control Voltage Range (Vctl) -0.2 to Vdd + 1V
Storage Temperature -65 to +150 °C
Operating Temperature -40 to +85 °C
ESD Sensitivity (HBM) Class 1A
[1] Do not “hot switch” power levels greater than +24 dBm.
[2] Max input power can be higher for duty cycle <100%
Control Input Signal Path State
Vctl Vdd RFC To Tx RFC to Rx
0.0 Vdd OFF ON
Vdd Vdd ON OFF
00ONOFF
High Z High Z ON OFF
Vdd = +3V to +8V
Control Input Voltage Tolerances are ± 0.2 Vdc.
DC blocking capacitors are required at ports RFC, Tx and Rx.
Truth Table
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
Part Number Package Body Material Lead Finish MSL Rating Package Marking [3]
HMC546LP2 Low Stress Injection Molded Plastic Sn/Pb Solder MSL1 [1] 546
XXX
HMC546LP2E RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL1 [2] 546
XXX
[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
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.
HMC546LP2 / 546LP2E
v03.0809
GaAs MMIC 10W FAILSAFE SWITCH
0.2 - 2.7 GHz
11
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
SWITCHES - SPDT - SMT
11 - 166
Pin Descriptions
Pin Number Function Description Interface Schematic
1 Tx This pin is DC coupled and matched to 50 Ohms.
2 Vctl See Truth Table.
3ACG External capacitor to ground is required.
See application circuit herein.
4 Rx This pin is DC coupled and matched to 50 Ohms.
5Vdd Supply Voltage
6 RFC This pin is DC coupled and matched to 50 Ohms.
GND Package bottom has exposed metal paddle
that must be connected to PCB RF ground.
HMC546LP2 / 546LP2E
v03.0809
GaAs MMIC 10W FAILSAFE SWITCH
0.2 - 2.7 GHz
Application Circuit
Tuned Frequency 1843 MHz 2015 MHz 2350 MHz 2600 MHz
Eva luat ion P CB Num ber 110782 115 201 1152 02 1152 03
C1, C3, C5 [1] 330 pF 330 pF 330 pF 330 pF
C2 1.2 pF 0.8 pF 0.6 pF 0.7 pF
C6 0.5 pF N/A N/A N/A
C7 3.0 pF 2.4 pF 2.0 pF 1.5 pF
L1 5.1nH [2] 4.3 nH [2] 2.0 nH [2] 1.6 nH [3]
L2 [2] 4.3 nH 3.9 nH 3.3 nH 2.7 nH
[1] DC blocking capacitors
[2] 0402 inductors, 5% tolerance
[3] 0603 inductor, 5% tolerance
Components for Selected Frequencies
11
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
SWITCHES - SPDT - SMT
11 - 167
HMC546LP2 / 546LP2E
v03.0809
GaAs MMIC 10W FAILSAFE SWITCH
0.2 - 2.7 GHz
Evaluation PCB
List of Materials for Evaluation PCB [1]
Item Description
J1 - J3 PCB Mount SMA RF Connector
J4 - J6 DC Pin
C1 - C3 [2] Capacitor, 0402 Pkg.
L1 - L2 [2] Inductor
U1 HMC546LP2 / HMC546LP2E T/R Switch
PCB [3] 110780 Evaluation PCB
[1] When requesting an evaluation board, please reference
the appropriate evaluation PCB number listed in the table
“Components for Selected Frequencies.”
[2] Please refer to ‘Components for Selected Frequencies’ table
for values.
[3] Circuit Board Material: Rogers 4350
The circuit board used in the 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 exposed paddle should be connected directly
to the ground plane similar to that shown above. The
evaluation circuit board shown above is available
from Hittite Microwave Corporation upon request.
