MICROWAVE CORPORATION
v01.0404
HMC484MS8G
GaAs MMIC 10 WATT T/R SWITCH
DC - 3.0 GHz
Typical Applications
Features
The HMC484MS8G is ideal for:
High RF Power Handling: > +40 dBm
• Wireless Infrastructure
High Third Order Intercept: > +70 dBm
• ISM/Cellular Portables/Handsets
Single Positive Supply: +3 to +10 Vdc
• Automotive Telematics
Low Insertion Loss: 0.4 to 0.6 dB
• Mobile Radio
Ultra Small MSOP8G Package: 14.8 mm2
• Test Equipment
Functional Diagram
SWITCHES - SMT
14
Electrical Specifications,
General Description
The HMC484MS8G is a low-cost SPDT switch in
an 8-lead MSOPG package for use in transmitreceive applications which require very low distortion at high input signal power levels, through
10 watts (+40 dBm). The device can control
signals from DC to 3.0 GHz. The design provides
exceptional intermodulation performance; > +70
dBm third order intercept at +5 volt bias. RF1 and
RF2 are reflective shorts when “OFF”. On-chip
circuitry allows single positive supply operation
from +3 Vdc to +10 Vdc at very low DC current
with control inputs compatible with CMOS and
most TTL logic families.
TA = +25° C, Vctl = 0/+5 Vdc, Vdd = +5 Vdc (Unless Otherwise Stated), 50 Ohm System
Parameter
Frequency
Insertion Loss
DC - 1.0 GHz
DC - 2.0 GHz
DC - 2.5 GHz
DC - 3.0 GHz
Isolation
DC - 3.0 GHz
Return Loss (On State)
Max.
Units
0.4
0.6
0.8
0.9
0.6
0.8
1.1
1.3
dB
dB
dB
dB
dB
DC - 1.0 GHz
DC - 2.0 GHz
DC - 2.5 GHz
DC - 3.0 GHz
24
20
17
13
dB
dB
dB
dB
32
36
39
dBm
dBm
dBm
35.5
40
>40
dBm
dBm
dBm
72
70
dBm
dBm
15
40
ns
ns
Vctl = 0/+3V
Vctl = 0/+5V
Vctl = 0/+8V
0.5 - 3.0 GHz
Input Power for 1dB Compression
Vctl = 0/+3V
Vctl = 0/+5V
Vctl = 0/+8V
0.5 - 3.0 GHz
0.5 - 1.0 GHz
0.5 - 3.0 GHz
26
Typ.
30
Input Power for 0.1dB Compression
Input Third Order Intercept
(Two-tone input power = +30 dBm each tone)
Min.
32
37
40
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
14 - 260
DC - 3.0 GHz
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
HMC484MS8G
v01.0404
MICROWAVE CORPORATION
GaAs MMIC 10 WATT T/R SWITCH
DC - 3.0 GHz
Insertion Loss vs. Temperature
Isolation
0
0
-5
-10
ISOLATION (dB)
INSERTION LOSS (dB)
-0.5
-1
-1.5
-2
+25 C
+85 C
-40 C
-2.5
RF1
RF2
-15
-20
-25
-30
-35
-40
-45
-3
-50
0.5
1
1.5
2
2.5
3
3.5
0
0.5
1
FREQUENCY (GHz)
1.5
2
2.5
3
3.5
FREQUENCY (GHz)
Isolation vs. Bias Voltage (Vdd)
Insertion Loss vs. Bias Voltage (Vdd)
0
0
14
-5
-10
ISOLATION (dB)
INSERTION LOSS (dB)
-0.5
-1
-1.5
+3 Volts
+5 Volts
+8 Volts
+10 Volts
-2
+3 Volts
+5 Volts
+8 Volts
+10 Volts
-15
-20
-25
-30
-35
-40
-2.5
-45
-50
-3
0
0.5
1
1.5
2
2.5
3
0
3.5
0.5
1
Return Loss
2
2.5
3
3.5
RF1 to RF2 Isolation
0
0
-5
RFC
RF1, RF2
ALL OFF
RF1 ON
RF2 ON
-10
ISOLATION (dB)
-5
RETURN LOSS (dB)
1.5
FREQUENCY (GHz)
FREQUENCY (GHz)
-10
-15
-20
SWITCHES - SMT
0
-15
-20
-25
-30
-35
-40
-25
-45
-30
-50
0
0.5
1
1.5
2
FREQUENCY (GHz)
2.5
3
3.5
0
0.5
1
1.5
2
2.5
3
3.5
FREQUENCY (GHz)
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
14 - 261
HMC484MS8G
v01.0404
MICROWAVE CORPORATION
GaAs MMIC 10 WATT T/R SWITCH
DC - 3.0 GHz
Input P0.1dB vs. Vdd
Input P1dB @ Vdd = +5 Volts
50
45
+3 Volts
+5 Volts
+8 Volts
INPUT P1dB (dBm)
INPUT P0.1dB (dBm)
45
40
35
30
25
40
35
+25 C
+85 C
-40 C
30
25
0
0.5
1
1.5
2
2.5
3
3.5
0
0.5
1
1.5
FREQUENCY (GHz)
0
0
0
0
-0.2
-10
-0.4
-20
-0.4
-20
-0.6
-30
-0.6
-30
-0.8
-40
INSERTION LOSS
-1
-50
-60
-1.2
F2
F3
-1.4
-70
-1.6
-80
-1.8
-90
INSERTION LOSS (dB)
-10
-40
-0.8
INSERTION LOSS
-1
F2
F3
-50
-1.2
-60
-1.4
-70
-1.6
-80
-1.8
-90
-2
-100
-2
-100
-2.2
-110
-2.2
-110
-2.4
-120
-2.4
15
20
25
INPUT POWER (dBm)
30
35
-120
10
15
20
25
30
INPUT POWER (dBm)
2nd & 3rd Harmonics @ 900 MHz,
Vdd = +8 Volts
0
0
-0.2
-10
-0.4
-20
-30
-0.6
-0.8
F2
F3
INSERTION LOSS
-1
-40
-50
-1.2
-60
-1.4
-70
-1.6
-80
-1.8
-90
-2
-100
-2.2
-110
HARMONICS (dBc)
INSERTION LOSS (dB)
10
-120
-2.4
10
15
20
25
30
INPUT POWER (dBm)
35
40
Contact HMC Applications Group for input third order & input compression data from DC - 0.5 GHz.
14 - 262
3.5
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
35
40
HARMONICS (dBc)
INSERTION LOSS (dB)
3
-0.2
HARMONICS (dBc)
SWITCHES - SMT
2.5
2nd & 3rd Harmonics @ 900 MHz,
Vdd = +5 Volts
2nd & 3rd Harmonics @ 900 MHz,
Vdd = +3 Volts
14
2
FREQUENCY (GHz)
HMC484MS8G
v01.0404
MICROWAVE CORPORATION
GaAs MMIC 10 WATT T/R SWITCH
DC - 3.0 GHz
Input IP3 @ Vdd = +3 Volts
Input IP3 @ Vdd = +5 Volts
50
80
75
INPUT IP3 (dBm)
40
+25 C
+85 C
-40 C
35
30
70
65
60
+25 C
+85 C
-40 C
55
25
50
0
0.5
1
1.5
2
2.5
3
3.5
0
0.5
1
FREQUENCY (GHz)
2
2.5
3
3.5
Input IP3 @ Vdd = +10 Volts
80
80
75
75
INPUT IP3 (dBm)
INPUT IP3 (dBm)
Input IP3 @ Vdd = +8 Volts
70
65
60
+25 C
+85 C
-40 C
55
14
70
65
60
+25 C
+85 C
-40 C
55
50
50
0
0.5
1
1.5
2
2.5
3
0
3.5
0.5
Input IP3 vs. Input Power @ 900 MHz
75
70
70
INPUT IP3 (dBm)
80
75
65
+3 Volts
+5 Volts
+8 Volts
+10 Volts
55
1.5
2
2.5
3
3.5
Input IP3 vs. Input Power @ 1900 MHz
80
60
1
FREQUENCY (GHz)
FREQUENCY (GHz)
INPUT IP3 (dBm)
1.5
FREQUENCY (GHz)
50
45
65
60
+3 Volts
+5 Volts
+8 Volts
+10 Volts
55
50
45
40
40
35
35
30
SWITCHES - SMT
INPUT IP3 (dBm)
45
30
27
28
29
30
31
32
TWO TONE INPUT POWER (dBm) (EACH TONE)
33
27
28
29
30
31
32
33
TWO TONE INPUT POWER (dBm) (EACH TONE)
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
14 - 263
HMC484MS8G
v01.0404
MICROWAVE CORPORATION
GaAs MMIC 10 WATT T/R SWITCH
DC - 3.0 GHz
Typical 0.5 to 3.0 GHz
Compression vs. Bias Voltage (Vdd)
Bias Vdd
Input Power for 0.1 dB
Compression
Input Power for 1.0 dB
Compression
(Volts)
(dBm)
(dBm)
+3
32
35.5
+5
36
40
+8
39
>40
+10
>40
>40
Bias Voltage & Current
SWITCHES - SMT
14
Absolute Maximum Ratings
RF Input Power (Vctl = 0V/+8V)
(0.5 - 3 GHz)
+40 dBm (T = +85 °C)
Supply Voltage Range (Vdd)
(Vctl = 0V)
+13 Vdc
Control Voltage Range (A & B)
Vdd - 13 Vdc to Vdd + 0.7 Vdc
Hot Switch Power Level
(Vdd = +8V)
39 dBm
Channel Temperature
150 °C
Continuous Pdiss (T = 85 °C)
(derate 25 mW/°C above 85 °C)
1.6 W
Vdd (Vdc)
Typical Idd (µA)
Thermal Resistance
40 °C/W
+3
0.5
Storage Temperature
-65 to +150 °C
+5
10
Operating Temperature
-40 to +85 °C
+8
50
+10
75
Control Voltages
State
Bias Condition
Low
0 to +0.2 Vdc @ 10 µA Typical
Note: DC blocking capacitors are required at ports RFC,
RF1 and RF2. Their value will determine the lowest transmission frequency.
Truth Table
Control Input (Vctl)
High
Vdd ± 0.2 Vdc @ 10 µA Typical
Signal Path State
A
B
RFC to RF1
RFC to RF2
High
Low
Off
On
Low
High
On
Off
Low
Low
Off
Off
Outline Drawing
NOTES:
1. PACKAGE BODY MATERIAL: LOW STRESS INJECTION MOLDED
PLASTIC SILICA AND SILICON IMPREGNATED.
2. LEADFRAME MATERIAL: COPPER ALLOY
3. LEADFRAME PLATING: Sn/Pb SOLDER
4. DIMENSIONS ARE IN INCHES [MILLIMETERS].
5. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.15mm PER SIDE.
6. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.25mm PER SIDE.
7. ALL GROUND LEADS MUST BE SOLDERED TO PCB RF GROUND.
8. CLASSIFIED AS MOISTURE SENSITIVITY LEVEL (MSL) 1.
14 - 264
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
HMC484MS8G
v01.0404
MICROWAVE CORPORATION
GaAs MMIC 10 WATT T/R SWITCH
DC - 3.0 GHz
Typical Application Circuit
14
1. Set logic gate and switch Vdd = +3V to +10V 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 +3 to +10 Volts applied to the CMOS
logic gates and to pin 4 of the RF switch.
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 V set to +10V. The switch will operate properly (but at lower
RF power capability) at bias voltages down to +3V.
Pin Descriptions
Pin Number
Function
Description
1
A
See truth table and control voltage table.
2
B
See truth table and control voltage table.
3, 5, 8
RFC, RF1, RF2
This pin is DC coupled and matched to 50 Ohms.
Blocking capacitors are required.
4
Vdd
Supply Voltage
6, 7
GND
Package bottom must also
be connected to PCB RF ground.
Interface Schematic
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
SWITCHES - SMT
Notes:
14 - 265
MICROWAVE CORPORATION
HMC484MS8G
v01.0404
GaAs MMIC 10 WATT T/R SWITCH
DC - 3.0 GHz
Evaluation Circuit Board
SWITCHES - SMT
14
List of Material for Evaluation PCB 104124*
Item
Description
J1 - J3
PC Mount SMA RF Connector
J4 - J7
DC Pin
C1 - C3
100 pF capacitor, 0402 Pkg.
C4
10 KpF capacitor, 0603 Pkg.
R1 - R3
100 Ohm Resistor, 0402 Pkg.
U1
HMC484MS8G T/R Switch
PCB**
104122 PCB
The circuit board used in the final 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
package bottom 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.
** Circuit Board Material: Rogers 4350
*Reference this number when ordering complete evaluation PCB.
14 - 266
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
MICROWAVE CORPORATION
v01.0404
HMC484MS8G
GaAs MMIC 10 WATT T/R SWITCH
DC - 3.0 GHz
Notes:
SWITCHES - SMT
14
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
14 - 267