SPDT Switch & Limiter
2.7 - 3.5 GHz
Rev. V4
MASL-011023
1
1
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DC-0004687
1
Functional Block Diagram
Ordering Information
Part Number Package
MASL-011023 Bulk Packaging
MASL-011023-TR0500 500 piece reel
MASL-011023-001SMB Sample Board
* Restrictions on Hazardous Substances, European Union Directive 2002/95/EC.
Features
125 W CW TX Input Power Handling @ +85°C
Baseplate
Integrates SP2T & Limiter Function
Low TX and RX Insertion Loss
High Isolation on Receive Path
10 dBm RX Flat Leakage
Operates from +/-5 V & +30 V
Ultra Fast Recovery Time <100 ns
Surface Mount 7 mm 32-lead HQFN JEDEC
MSL1 Package
RoHS* Compliant and 260°C Reflow Compatible
Description
The MASL-011023 is a plastic packaged high power
switch-limiter with integrated bias networks. This
surface mount, small configuration is designed with
minimal parasitics usually associated with hybrid
MIC designs incorporating beam lead and/or
bondable PIN diodes that require chip and wire
assembly. This standard HQFN enables reliable,
repeatable high volume manufacturing with
MACOMs’ design techniques to maximize heat
dissipation in a plastic package.
This SP2T switch-limiter is designed to optimize Ant
to RX loss and handle +51 dBm CW through the
TX path to an external high power 50 Ω termination.
This device incorporates a high power SP2T switch,
a limiter function, and a fully integrated RF & DC
bias network.
The MASL-011023 is designed to be used in 2.7 -
3.5 GHz higher power switch applications that
require high volume, surface mount, solder reflow
manufacturing. It is RoHS compliant, durable,
reliable and capable of meeting all military,
commercial, and industrial environments.
Pin # Pin Name Description
1 N/C No Connection
2 LOAD TX Port
3 LOAD TX Port
4 - 15 N/C No Connection
16 RX RX Port
17 - 19 N/C No Connection
20 B2 Bias
21 N/C No Connection
22 G1 Ground
23 N/C No Connection
24 A1 No Connection
25 - 29 N/C No Connection
30 ANT Antenna
31, 32 N/C No Connection
331 Ground Paddle
Pin Configuration
1
32
N/C
N/C
N/C
N/C
N/C
N/C
N/C N/C N/C N/C N/C N/C N/C RX
8
9 16
17
24
25
N/C
N/C
N/C
G1
N/C
B2
N/C
A1
N/C
N/C N/C N/C
ANT N/C
N/C N/C
LOAD
LOAD
20
22
30
2
3
Switch
Limiter
1. The exposed pad centered on the package bottom must be
connected to RF, DC and thermal ground.
SPDT Switch & Limiter
2.7 - 3.5 GHz
Rev. V4
MASL-011023
2
2
MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit www.macom.com for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
DC-0004687
2
Electrical Specifications: Freq: 2.7 - 3.5 GHz, TA = +25°C, PIN = -10 dBm, Z0 = 50 Ω
2. Actual results are driver-dependent.
Parameter Condition Units Min. Typ. Max.
Insertion Loss RX Mode
TX Mode 1 dB — 0.85
0.25
1.5
—
Isolation ANT to TX Port, RX Mode
ANT to RX Port, TX Mode 1 dB —
25
17
30 —
Return Loss ANT & RX ports, RX Mode
ANT & TX ports, TX Mode 1 dB — 14
14 —
CW Input Power,
ANT port
TX Mode 1
RX Mode
all Driver Conditions, also un-biased
dBm —
51
33
33
—
TX P0.1dB Compression TX Mode 1 dBm — 51 —
Flat Leakage 33 dBm PIN, RX Mode dBm — 10 —
RX Leakage 51 dBm PIN, TX Mode 1 dBm — 7 —
Switching Time2 50% TTL Control to 90% RF Voltage ns — 700 —
Limiter Recovery Time
to Final Insertion Loss
PIN <+33 dBm to -10 dBm,
300 µs pulse, 50% duty cycle, RX Mode ns — <100 —
Spike Leakage 300 µs pulse, 50% duty cycle, RX Mode ergs — <0.1 —
Parameter Absolute Maximum
Operating Temperature -55°C to +85°C
Storage Temperature -65°C to +150°C
Junction Temperature6 +175°C
Applied Reverse Voltage 100 V
TX RF CW Incident Power 125 W @ +85°C
TX Bias Current +25°C 150 mA
Absolute Maximum Ratings3,4,5 Driver Conditions
7. Current is controlled externally, with RRX in parallel with a
switching diode. “Rcom” is 220 Ω. G1 is connected to ground
externally. See Application Circuit Diagram.
Control Level DC Voltages
(resulting currents)
G1 = Ground, A1 = N/C
Condition of
RF Output
B3 B1
-5 V (-35 mA7) +30 V (132 mA) TX Mode 1
RRX = 120 Ω
-5 V (-25 mA7) +30 V (132 mA) TX Mode 2
RRX = 160 Ω
+5 V (+17 mA7) -5 V (0 mA) RRX Mode
3. Exceeding any one or combination of these limits may cause
permanent damage to this device.
4. MACOM does not recommend sustained operation near these
survivability limits.
5. Operating at nominal conditions with TJ ≤ +175°C will ensure
MTTF > 1 x 106 hours.
6. TX path typical thermal resistance (Өjc) = 12.6° CW dissipated.
SPDT Switch & Limiter
2.7 - 3.5 GHz
Rev. V4
MASL-011023
3
3
MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit www.macom.com for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
DC-0004687
3
Bias Control
Optimal operation is achieved by simultaneous
application of positive DC voltage to the low loss
switching arm and negative DC voltage to the
isolating switching arm.
In the low loss state, the diode is forward biased with
current. In the isolated state, the series diode is
reverse biased with voltage.
Minimum Reverse Bias Required (TX mode):
30 V DC Voltage for 125 W CW Power
R. Caverly and G. Hiller, “Establishing the Minimum Reverse
Bias for a P-I-N Diode in a High Power Switch,” IEEE Transac-
tions on Microwave Theory and Techniques, Vol.38, No.12,
December 1990
Handling Procedures
Please observe the following precautions to avoid
damage:
Static Sensitivity
RF Integrated Circuits are sensitive to electrostatic
discharge (ESD) and can be damaged by static
electricity. Proper ESD control techniques should be
used when handling these devices.
Application Schematic8
B2
B3
B1
A1G1
ANT
LOAD
RX
Cblock2
Cblock1
Rrx
Ctx
R
R2
R=50 Ohm
Ltx
Diode
RxPin2
RxPin1
Crx
Limiter Schottky
Lrx
Lcom
Ccom
Rcom
TxPin1
Cblock3
8. MASL-011023 includes components within the rectangle
above.
Suggested PCB Layout
Parts List
Part Value Case Style
C1 = CTX 12 pF 0603, Low ESR9
C2 12 pF 0402
L1 = LTX 47 nH 0402
Diode = CR1 125 mA/80 V 0402
R1 = RRX 120 Ω 1210, >=1/2 W
9. Johanson Technology R14S is recommended.
SPDT Switch & Limiter
2.7 - 3.5 GHz
Rev. V4
MASL-011023
4
4
MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit www.macom.com for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
DC-0004687
4
Typical Performance Curves RX Mode
Insertion Loss
Input Return loss Output Return Loss
-2.0
-1.5
-1.0
-0.5
0.0
2.6 2.8 3.0 3.2 3.4 3.6
+25°C
-54°C
+85°C
Frequency (GHz)
-30
-25
-20
-15
-10
-5
0
2.6 2.8 3.0 3.2 3.4 3.6
+25°C
-54°C
+85°C
Frequency (GHz)
-30
-25
-20
-15
-10
-5
0
2.6 2.8 3.0 3.2 3.4 3.6
+25°C
-54°C
+85°C
Frequency (GHz)
RX Leakage in TX Mode
RX Leakage in RX Mode
-30
-20
-10
0
10
20
30
0.0 10 20 30 40 50 60
+25°C
+85°C
Input Power (dBm)
Isolation ANT to TX Port
-30
-25
-20
-15
-10
-5
0
2.6 2.8 3.0 3.2 3.4 3.6
+25°C
-54°C
+85°C
Frequency (GHz)
-10
-5
0
5
10
15
20
-10 0 10 20 30 40
+25°C
+85°C
Input Power (dBm)
SPDT Switch & Limiter
2.7 - 3.5 GHz
Rev. V4
MASL-011023
5
5
MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit www.macom.com for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
DC-0004687
5
Typical Performance Curves TX Mode 1
Insertion Loss
Input Return loss Output Return Loss
-30
-25
-20
-15
-10
-5
0
2.6 2.8 3.0 3.2 3.4 3.6
+25°C
-54°C
+85°C
Frequency (GHz)
-30
-25
-20
-15
-10
-5
0
2.6 2.8 3.0 3.2 3.4 3.6
+25°C
-54°C
+85°C
Frequency (GHz)
-1.0
-0.8
-0.6
-0.4
-0.2
0.0
2.6 2.8 3.0 3.2 3.4 3.6
+25°C
-54°C
+85°C
Frequency (GHz)
TX Compression
-0.2
-0.1
0.0
0.1
0.2
010 20 30 40 50 60
+25°C
+85°C
Input Power (dBm)
Isolation ANT to RX Port
SPDT Switch & Limiter
2.7 - 3.5 GHz
Rev. V4
MASL-011023
6
6
MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit www.macom.com for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
DC-0004687
6
Lead-Free 7 mm 32-Lead HQFN†
† Reference Application Note S2083 for lead-free solder reflow recommendations.
Meets JEDEC moisture sensitivity level 1 requirements.
SPDT Switch & Limiter
2.7 - 3.5 GHz
Rev. V4
MASL-011023
7
7
MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit www.macom.com for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
DC-0004687
7
MACOM Technology Solutions Inc. All rights reserved.
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