HMC194MS8
/
194MS8E
v05.0105
GaAs MMIC SPDT SWITCH
DC - 3 GHz
Typical Applications
The HMC194MS8 /HMC194MS8E is ideal for:
• Cellular/PCS Base Stations
• Portable Wireless
• MMDS & WirelessLAN
Features
Ultra Small Package: MSOP8
High Isolation: 50 dB
Positive Control: 0/+3V to 0/+7V
8
SWITCHES - SMT
Functional Diagram
General Description
The HMC194MS8 & HMC194MS8E are low-cost
SPDT switches in 8-lead MSOP packages for use in
applications which require high isolation between two
RF paths. The devices can control signals from DC to
3 GHz and have been optimized to provide extremely
high isolation with minimal insertion loss in medium
and low power applications. On chip circuitry allows
positive voltage control operation at very low DC cur-
rents with control inputs compatible with CMOS and
most TTL logic families. RF1 and RF2 are reflective
opens when “OFF”.
Electrical Specifications,
T
A
= +25° C, Vctl = 0/+5 Vdc, 50 Ohm System
Parameter
Insertion Loss
RF1 / RF2
RF1 / RF2
Frequency
DC - 2.0 GHz
DC - 2.5 GHz
DC - 3.0 GHz
DC - 1.0 GHz
DC - 2.0 GHz
DC - 2.5 GHz
DC - 3.0 GHz
DC - 2.0 GHz
DC - 2.5 GHz
0.5 - 3.0 GHz
0/+5V Control
0.5 - 3.0 GHz
DC - 3.0 GHz
tRISE, tFALL (10/90% RF)
tON , tOFF (50% CTL to 10/90% RF)
10
24
ns
ns
24
49
48 / 50
40 / 42
31
24
Min.
Typ.
0.7
0.8
0.8
52 / 54
44 / 46
35
28
24
22
28
53
Max.
0.9
1.0
1.1
Units
dB
dB
dB
dB
dB
dB
dB
dB
dB
dBm
dBm
Isolation
Return Loss
Input Power for 1 dB Compression
0/+5V Control
Input Third Order Intercept
(Two-tone Input Power = +7 dBm Each Tone)
Switching Characteristics
8 - 18
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
HMC194MS8
/
194MS8E
v05.0105
GaAs MMIC SPDT SWITCH
DC - 3 GHz
Insertion Loss
0
-0.5
INSERTION LOSS (dB)
-1
-1.5
-2
-2.5
-3
0
1
2
3
FREQUENCY (GHz)
Isolation
0
-10
ISOLATION (dB)
-20
-30
-40
-50
-60
-70
0
1
2
3
FREQUENCY (GHz)
RF1
RF2
8
SWITCHES - SMT
Return Loss
0
Input 0.1 and 1.0 dB
Compression vs. Control Voltage
INPUT POWER FOR 0.1dB & 1dB COMPRESSION
32
28
24
20
16
12
8
4
0
3
5
Control Input (Vdc)
7
P0.1dB at 900 MHz
P1dB at 900 MHz
P0.1dB at 1900 MHz
P1dB at 1900 MHz
P0.1dB at 3000 MHz
P1dB at 3000 MHz
RETURN LOSS (dB)
-10
S11
S22
-20
-30
-40
0
1
2
3
FREQUENCY (GHz)
Input Third Order
Intercept Point vs. Control Voltage
INPUT THIRD ORDER INTERCEPT (dBm)
60
50
40
30
20
10
0
3
5
Control Input (Vdc)
7
Truth Table
*Control Input Voltage Tolerances are ± 0.2 Vdc.
Control Input*
A
(Vdc)
0
+3
B
(Vdc)
+3
0
+5
0
+7
0
Control Current
Ia
(uA)
-0.05
+0.05
-2
+2
-15
+15
Ib
(uA)
+0.05
-0.05
+2
-2
+15
-15
Signal Path State
RF to
RF1
ON
OFF
ON
OFF
ON
OFF
RF to
RF2
OFF
ON
OFF
ON
OFF
ON
900 MHz
1900 MHz
3000 MHz
0
+5
0
+7
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
8 - 19
HMC194MS8
/
194MS8E
v05.0105
GaAs MMIC SPDT SWITCH
DC - 3 GHz
Absolute Maximum Ratings
RF Input Power (Vctl= 0V/+5V)
Control Voltage Range (A & B)
Hot Switch Power Level (Vctl= 0V/+5V)
Channel Temperature
Continuous Pdiss (T= 85 °C)
(derate 5.5 mW/°C above 85 °C)
Thermal Resistance
Storage Temperature
Operating Temperature
+27 dBm
-0.2 to +7.5 Vdc
+24 dBm
150 °C
360 mW
180 °C/W
-65 to +150 °C
-40 to +85 °C
Class 1C
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
8
SWITCHES - SMT
ESD Sensitivity (HBM)
Note: DC blocking capacitors are required at ports RFC, RF1 and
RF2. Their value will determine the lowest transmission frequency.
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.
6. CLASSIFIED AS MOISTURE SENSITIVITY LEVEL (MSL) 1.
Package Information
Part Number
HMC194MS8
HMC194MS8E
Package Body Material
Low Stress Injection Molded Plastic
RoHS-compliant Low Stress Injection Molded Plastic
Lead Finish
Sn/Pb Solder
100% matte Sn
MSL Rating
MSL1
MSL1
[1]
Package Marking
[3]
H194
XXXX
H194
XXXX
[2]
[1] Max peak reflow temperature of 235 °C
[2] Max peak reflow temperature of 260 °C
[3] 4-Digit lot number XXXX
8 - 20
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
HMC194MS8
/
194MS8E
v05.0105
GaAs MMIC SPDT SWITCH
DC - 3 GHz
Typical Application Circuit
8
SWITCHES - SMT
Notes:
1. Set logic gate and switch 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 3 to 7 Volts 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 Control set to 0/+7V.
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
8 - 21
HMC194MS8
/
194MS8E
v05.0105
GaAs MMIC SPDT SWITCH
DC - 3 GHz
Evaluation Circuit Board
8
SWITCHES - SMT
List of Materials for Evaluation PCB 105143
[1]
Item
J1 - J3
J4 - J6
C1 - C3
R1, R2
U1
PCB
[2]
Description
PC Mount SMA RF Connector
DC Pin
100 pF capacitor, 0402 Pkg.
100 Ω resistor, 0402 Pkg.
HMC194MS8 / HMC194MS8E
SPDT Switch
107821 Evaluation 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 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.
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Rogers 4350
8 - 22
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
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