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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
GaAs MMIC SPDT
SWITCH, DC - 3 GHz
General Description
Features
Functional Diagram
Low Insertion Loss: 0.25 dB
High Input IP3: +65 dBm
Low DC Power Consumption
Positive Control: 0/+3V to 0/+8V
Ultra Small Package: SOT26
Electrical Specifications
T
A
= +25 C, Vctl = 0/+5 Vdc
(Unless Otherwise Stated)
, 50 Ohm System
Typical Applications
The HMC545 / HMC545E is ideal for:
Cellular/3G Infrastructure
Private Mobile Radio Handsets
WLAN, WiMAX & WiBro
Automotive Telematics
Test Equipment
The HMC545 and HMC545E are low-cost SPDT
switches in 6-lead SOT26 plastic packages for use
in general switching applications which require very
low insertion loss and very small size. With 0.25
dB typical loss, these devices can control signals
from DC to 3.0 GHz and are especially suited for
IF and RF applications including Cellular/3G, ISM,
automotive and portables. The design provides
exceptional insertion loss performance, ideal for fi lter
and receiver switching. RF1 and RF2 are refl ective
shorts when "Off". The two control voltages require a
minimal amount of DC current and offer compatibility
with CMOS and some TTL logic families.
Parameter
Frequency
Min.
Typ.
Max.
Units
Insertion Loss
DC - 1.0 GHz
DC - 2.5 GHz
DC - 3.0 GHz
0.25
0.3
0.4
0.4
0.5
0.7
dB
dB
dB
Isolation
DC - 2.2 GHz
DC - 2.5 GHz
DC - 3.0 GHz
26
22
20
31
27
24
dB
dB
dB
Return Loss
DC - 1.0 GHz
DC - 2.0 GHz
DC - 2.5 GHz
DC - 3.0 GHz
25
21
19
17
dB
dB
dB
dB
Input Power for 1 dB Compression
Vctl = 0/+3V
Vctl = 0/+5V
Vctl = 0/+8V
0.5 - 3.0 GHz
23
29
32
27
33
36
dBm
dBm
dBm
Input Third Order Intercept
(Two-tone Input Power = +17 dBm Each Tone)
Vctl = 0/+3V
Vctl = 0/+5V
Vctl = 0/+8V
0.5 - 3.0 GHz
45
65
65
dBm
dBm
dBm
Switching Characteristics
DC - 3.0 GHz
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
70
90
ns
ns
v00.0905
HMC545
/
545E
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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
Return Loss
Insertion Loss
Isolation Between
Ports RFC and RF1/RF2
GaAs MMIC SPDT
SWITCH, DC - 3 GHz
Input P0.1dB vs. Vctl
v00.0905
HMC545
/
545E
Isolation Between Ports RF1 and RF2
-2
-1.5
-1
-0.5
0
0
0.5
1
1.5
2
2.5
3
3.5
4
+25 C
+85 C
-40 C
INSERTION LOSS (dB)
FREQUENCY (GHz)
-45
-40
-35
-30
-25
-20
-15
-10
-5
0
0
0.5
1
1.5
2
2.5
3
3.5
4
RF1 ON
RF2 ON
ISOLATION (dB)
FREQUENCY (GHz)
-45
-40
-35
-30
-25
-20
-15
-10
-5
0
0
0.5
1
1.5
2
2.5
3
3.5
4
RF1
RF2
ISOLATION (dB)
FREQUENCY (GHz)
-40
-35
-30
-25
-20
-15
-10
-5
0
0
0.5
1
1.5
2
2.5
3
3.5
4
RFC
RF1, RF2 ON
RETURN LOSS (dB)
FREQUENCY (GHz)
0
5
10
15
20
25
30
35
40
0
0.5
1
1.5
2
2.5
3
+3V
+5V
+8V
INPUT P1dB (dBm)
FREQUENCY (GHz)
0
5
10
15
20
25
30
35
40
0
0.5
1
1.5
2
2.5
3
+3V
+5V
+8V
INPUT P0.1dB (dBm)
FREQUENCY (GHz)
Input P1dB vs. Vctl
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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
GaAs MMIC SPDT
SWITCH, DC - 3 GHz
v00.0905
HMC545
/
545E
Control Voltages
Absolute Maximum Ratings
State
Bias Condition
Low
0 to 0.2 Vdc @ 1 A Typical
High
+3 Vdc @ 0.5 A Typical to
+8 Vdc @ 3 A Typical (0.2 Vdc)
RF Input Power (Vctl = 0/+8V)
+34 dBm
Control Voltage Range (A & B)
-0.2 to +12 Vdc
Hot Switch Power Level
(Vctl = 0/+8V)
+32 dBm
Channel Temperature
150 C
Continuous Pdiss (T= 85 C)
(derate 3.5 mW/ C above 85C)
0.23 W
Thermal Resistance
282 C/W
Storage Temperature
-65 to +150 C
Operating Temperature
-40 to +85 C
ESD Sensitivity (HBM)
Class 1A
DC blocks are required at ports RFC, RF1 and RF2.
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
Control Input
Control Current
A
B
RFC to RF1
RFC to RF2
Low
High
Off
On
High
Low
On
Off
Truth Table
Input Third Order
Intercept Point vs. Control Voltage
30
35
40
45
50
55
60
65
70
75
0.5
1
1.5
2
2.5
3
+3V
+5V
+8V
INPUT IP3 (dBm)
FREQUENCY (GHz)
Low Frequency Input P0.1dB vs. Vctl
10
15
20
25
30
35
40
0.01
0.1
1
+3V
+5V
+8V
INPUT P0.1dB (dBm)
FREQUENCY (GHz)
Low Frequency Input P1dB vs. Vctl
10
15
20
25
30
35
40
0.01
0.1
1
+3V
+5V
+8V
INPUT P1dB (dBm)
FREQUENCY (GHz)
Insertion Loss, T = +25 C
-0.4
-0.35
-0.3
-0.25
-0.2
-0.15
-0.1
-0.05
0
0
0.5
1
1.5
2
2.5
3
INSERTION LOSS (dB)
FREQUENCY (GHz)
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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
GaAs MMIC SPDT
SWITCH, DC - 3 GHz
v00.0905
HMC545
/
545E
Outline Drawing
NOTES:
1. LEADFRAME MATERIAL: COPPER ALLOY
2. DIMENSIONS ARE IN INCHES [MILLIMETERS].
3. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.15mm PER SIDE.
4. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.25mm PER SIDE.
5. ALL GROUND LEADS MUST BE SOLDERED TO PCB RF GROUND.
Package Information
Part Number
Package Body Material
Lead Finish
MSL Rating
Package Marking
HMC545
Low Stress Injection Molded Plastic
Sn/Pb Solder
MSL1
[1]
H545
HMC545E
RoHS-compliant Low Stress Injection Molded Plastic
100% matte Sn
MSL1
[2]
545E
[1] Max peak refl ow temperature of 235 C
[2] Max peak refl ow temperature of 260 C
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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
GaAs MMIC SPDT
SWITCH, DC - 3 GHz
v00.0905
HMC545
/
545E
Typical Application Circuit
Notes:
1. Set logic gate Vdd = +3V to +5V and use HCT series logic to provide a TTL driver interface.
2. Control inputs A/B can be driven directly with CMOS logic (HC) with Vdd of +3V to +8V applied to the CMOS logic gates.
3. DC Blocking capacitors are required for each RF port as shown. Capacitor value determines lowest frequency of operation.
4. Highest RF signal power capability is achieved with Vdd = +8V and A/B set to 0/+8V.
Pin Descriptions
Pin Number
Function
Description
Interface Schematic
1, 3, 5
RF2, RF1, RFC
These pins are DC coupled and matched to 50 Ohms.
Blocking capacitors are required.
2
GND
This pin must be connected to RF/DC ground.
4
B
See truth and control voltage tables.
6
A
See truth and control voltage tables.
14
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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
GaAs MMIC SPDT
SWITCH, DC - 3 GHz
v00.0905
HMC545
/
545E
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 should be connected directly to the ground
plane similar to that shown above. The evalua-
tion circuit board shown above is available from
Hittite Microwave Corporation upon request.
List of Materials for Evaluation PCB 101675
[1]
Item
Description
J1 - J5
PCB Mount SMA RF Connector
J6 - J8
DC Pin
C1 - C5
330 pF capacitor, 0402 Pkg.
U1
HMC545 / HMC545E SPDT Switch
PCB
[2]
101659 Evaluation PCB
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Rogers 4350
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