S
W
I
T
C
H
E
S
- SM
T
8
8 - 306
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 SPST
FAILSAFE SWITCH, DC - 6 GHz
General Description
Features
Functional Diagram
Failsafe Operation - "On" When Unpowered
Positive Control: 0/+2.2V to 0/+5V
Very Low On State Current: 200 nA
Low Insertion Loss: 0.7 dB
High IP3: +52 dBm
Compact SOT26 SMT Package
Electrical Specifications
T
A
= +25 C, Vdd = +3.3 Vdc, Vctl = 0/+3.3 Vdc
(Unless Otherwise Stated)
, 50 Ohm System
Typical Applications
The HMC550 / HMC550E is ideal for:
RFID & Electronic Toll Collection (ETC)
Tags, Handsets & Portables
ISM, WLAN, WiMAX & WiBro
Automotive Telematics
Test Equipment
The HMC550 and HMC550E are low-cost SPST
Failsafe switches in 6-lead SOT26 plastic packages
for use in switching applications which require low
insertion loss and very low current consumption. With
0.7 dB typical loss, these devices can control signals
from DC to 6.0 GHz and are especially suited for IF
and RF applications including RFID, ISM, automotive
and battery powered tags and portables. RF1 and RF2
are refl ective opens when "Off". The switch requires a
minimal amount of DC current in the "On" state, and
offers compatibility with CMOS and some TTL logic
families. The failsafe topology results in the switch
being normally "On", i.e. low insertion loss from RF1 to
RF2, when no DC bias is applied.
Parameter
Frequency
Min.
Typ.
Max.
Units
Insertion Loss
DC - 6.0 GHz
0.7
0.9
dB
Isolation
DC - 2.0 GHz
DC - 6.0 GHz
15
8
25
12
dB
dB
Return Loss
DC - 6.0 GHz
20
dB
Input Power for 0.1 dB Compression
Vctl = 0/+3.3V
0.5 - 6.0 GHz
23
27
dBm
Input Third Order Intercept
(Two-tone Input Power = +17 dBm Each Tone)
Vctl = 0/+3.3V
0.5 - 6.0 GHz
52
dBm
Switching Characteristics
DC - 6.0 GHz
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
40
50
ns
ns
T
A
= +25 C, Vctl & Vdd Unpowered
Insertion Loss
DC - 6.0 GHz
0.7
0.9
dB
Return Loss
DC - 6.0 GHz
20
dB
Input Power for 0.1 dB Compression
0.5 - 6.0 GHz
23
27
dBm
Input Third Order Intercept
(Two-tone Input Power = +17 dBm Each Tone)
0.5 - 0.6 GHz
52
dBm
v00.0306
HMC550
/
550E
S
W
I
T
C
H
E
S
- SM
T
8
8 - 307
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
Input P0.1dB vs. Temperature
v00.0306
HMC550
/
550E
-2.5
-2
-1.5
-1
-0.5
0
0
1
2
3
4
5
6
7
8
+25C
+85C
-40C
INSERTION LOSS (dB)
FREQUENCY (GHz)
-30
-25
-20
-15
-10
-5
0
0
1
2
3
4
5
6
7
8
+25C
+85C
-40C
RETURN LOSS (dB)
FREQUENCY (GHz)
-70
-60
-50
-40
-30
-20
-10
0
0
1
2
3
4
5
6
7
8
+25C
+85C
-40C
ISOLATION (dB)
FREQUENCY (GHz)
0
5
10
15
20
25
30
35
0
1
2
3
4
5
6
+25C
+85C
-40C
INPUT P0.1dB (dBm)
FREQUENCY (GHz)
30
35
40
45
50
55
60
0
1
2
3
4
5
6
+25C
+85C
-40C
INPUT IP3 (dBm)
FREQUENCY (GHz)
Input IP3 vs. Temperature
GaAs MMIC SPST
FAILSAFE SWITCH, DC - 6 GHz
S
W
I
T
C
H
E
S
- SM
T
8
8 - 308
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
Control Voltages
Absolute Maximum Ratings
State
Bias Condition
Low
0 to 0.2 Vdc @ 0.3 A Typical
High
+2.2 Vdc @ 0.2 A Typical
to +5 Vdc @ 0.5 A Typical
RF Input Power (Vctl = 0/+3.3V)
+34 dBm
Supply Voltage (Vdd)
+12 Vdc
Control Voltage Range (Vctl)
-0.2 to +VDD Vdc
Hot Switch Power Level
(Vctl = 0/+3.3V)
+35 dBm
Channel Temperature
150 C
Continuous Pdiss (T= 85 C)
(derate 6.67 mW/ C above 85C)
433 mW
Thermal Resistance
150 C/W
Storage Temperature
-65 to +150 C
Operating Temperature
-40 to +85 C
DC blocks are required at ports RF1 and RF2.
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
Control Input (Vctl)
RF1 to RF2 Path
Low
Off
High
On
Truth Table
Insertion Loss, Power Off
Return Loss, Power Off
v00.0306
HMC550
/
550E
Vdd (Vdc)
Low State
High State
3.3
0.3 A
0.5 A
Bias Voltage & Current
-2.5
-2
-1.5
-1
-0.5
0
0
1
2
3
4
5
6
7
8
INSERTION LOSS (dB)
FREQUENCY (GHz)
-30
-25
-20
-15
-10
-5
0
0
1
2
3
4
5
6
7
8
RETURN LOSS (dB)
FREQUENCY (GHz)
0
5
10
15
20
25
30
35
0
1
2
3
4
5
6
INPUT P0.1dB (dBm)
FREQUENCY (GHz)
Input P0.1dB, Power Off
30
35
40
45
50
55
60
0
1
2
3
4
5
6
INPUT IP3 (dBm)
FREQUENCY (GHz)
Input IP3, Power Off
GaAs MMIC SPST
FAILSAFE SWITCH, DC - 6 GHz
S
W
I
T
C
H
E
S
- SM
T
8
8 - 309
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
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
HMC550
Low Stress Injection Molded Plastic
Sn/Pb Solder
MSL1
[1]
H550
HMC550E
RoHS-compliant Low Stress Injection Molded Plastic
100% matte Sn
MSL1
[2]
550E
[1] Max peak refl ow temperature of 235 C
[2] Max peak refl ow temperature of 260 C
v00.0306
HMC550
/
550E
GaAs MMIC SPST
FAILSAFE SWITCH, DC - 6 GHz
S
W
I
T
C
H
E
S
- SM
T
8
8 - 310
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
Typical Application Circuit
Note:
1. DC Blocking capacitors are required for each RF port as shown. Capacitor value determines lowest frequency of operation.
Pin Descriptions
Pin Number
Function
Description
Interface Schematic
1, 3
RF1, RF2
These pins are DC coupled and matched to 50 Ohms.
Blocking capacitors are required.
2, 5
GND
These pins must be connected to RF ground.
4
Vctl
See truth and control voltage tables.
6
Vdd
Supply Voltage
v00.0306
HMC550
/
550E
GaAs MMIC SPST
FAILSAFE SWITCH, DC - 6 GHz
PDF 
ZIP