For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
SWITCHES - SPDT - SMT
0 - 1
HMC239AS8 / 239AS8E
v00.0311
GaAs MMIC SPDT SWITCH
DC - 2.5 GHz
Electrical Specications, TA = +25 °C, Vctl = 0 / -5V, 50 Ohm System
Parameter Frequency Min. Typ. Max. Units
Insertion Loss
DC - 0.1 GHz
DC - 0.5 GHz
DC - 1.0 GHz
DC - 2.0 GHz
DC - 2.5 GHz
0.4
0.4
0.5
0.6
0.7
0.6
0.6
0.7
0.8
1.0
dB
dB
dB
dB
dB
Isolation
DC - 0.5 GHz
DC - 1.0 GHz
DC - 2.0 GHz
DC - 2.5 GHz
33
26
18
14
36
29
21
17
dB
dB
dB
dB
Return Loss
DC - 1.0 GHz
DC - 2.0 GHz
DC - 2.5 GHz
18
17
15
21
21
20
dB
dB
dB
Input Power for 1 dB Compression 0 / -5V Control 0.5 - 1.0 GHz
0.5 - 2.5 GHz
25
23
29
27
dBm
dBm
Input Third Order Intercept
(Two-Tone Input Power = +7 dBm Each Tone) 0 / -5V Control 0.5 - 1.0 GHz
0.5 - 2.5 GHz
45
44
50
49
49
dBm
dBm
Switching Characteristics DC - 2.5 GHz
tRISE, tFALL (10 / 90% RF)
tON, tOFF (50% CTL to 10 / 90% RF)
2
10
10
ns
ns
Functional Diagram
Features
Low Insertion Loss: 0.4 dB
High Isolation: 35 dB
Fast Switching Speed: 2 ns
High Input IP3: +50 dBm
Typical Applications
The HMC239AS8 / HMC239AS8E is ideal for:
• MMDS & WirelessLAN
• Basestation Infrastructure
• Portable Wireless
General Description
The HMC239AS8 & HMC239AS8E are low-cost GaAs
MMIC SPDT switches in 8-lead SOIC packages. The
switch can control signals from DC to 2.5 GHz. It is
especially suited for low or medium power applica-
tions which require extremely fast switching with
minimal insertion loss. The two control voltages
require a minimal amount of DC current which is opti-
mal for battery powered radio systems. RF1 and RF2
are reective shorts when “Off”.
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
SWITCHES - SPDT - SMT
0 - 2
HMC239AS8 / 239AS8E
v00.0311
GaAs MMIC SPDT SWITCH
DC - 2.5 GHz
Return Loss
Insertion Loss Isolation
Input 0.1 and 1.0 dB
Compression vs. Control Voltage
Input Third Order
Distortion vs. Control Voltage
20
25
30
35
-9-8-7-6-5-4
COMPRESSION (dBm)
CONTROL VOLTAGE (Vdc)
P0.1dB at 900 MHz
P0.1dB at 1900 MHz
P1dB at 1900 MHz
P1dB at 900 MHz
45
50
55
-9-8-7-6-5-4
IP3 (dBm)
CONTROL VOLTAGE (Vdc)
900 MHz
1900 MHz
-3
-2.5
-2
-1.5
-1
-0.5
0
0 1 2 3
INSERTION LOSS (dB)
FREQUENCY (GHz)
-40
-30
-20
-10
0
0 1 2 3
RETURN LOSS (dB)
FREQUENCY (GHz)
-60
-50
-40
-30
-20
-10
0
0 1 2 3
ISOLATION (dB)
FREQUENCY (GHz)
RF1
RF2
Truth Table
*Control Input Voltage Tolerances are ± 0.2 Vdc.
Control Input* Control Current Signal Path State
A
(Vdc)
B
(Vdc)
Ia
(A)
Ib
(A)
RF to
RF1
RF to
RF2
-5 0 -5 5 ON OFF
0 -5 5 -5 OFF ON
-6 0 -12 12 ON OFF
0 -6 12 -12 OFF ON
-7 0 -20 20 ON OFF
0 -7 20 -20 OFF OM
-8 0 -32 32 ON OFF
0 -8 32 -32 OFF ON
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
SWITCHES - SPDT - SMT
0 - 3
HMC239AS8 / 239AS8E
v00.0311
GaAs MMIC SPDT SWITCH
DC - 2.5 GHz
Compression vs. Bias Voltage
Caution: Do not operate in 1 dB compression at power levels
above +30 dBm and do not “hot switch” power levels greater than
+20 dBm (Vctl= -5 Vdc).
Distortion vs. Bias Voltage
Carrier at 900 MHz Carrier at 1900 MHz
Control
Input
Input Power
for 0.1 dB
Compression
Input Power
for 1.0 dB
Compression
Input Power
for 0.1 dB
Compression
Input Power
for 1.0 dB
Compression
(Vdc) (dBm) (dBm) (dBm) (dBm)
-5 28 30 27 29
-6 29 31 28 30
-8 31 33 30 32
Control
Input
Third Order Intercept (dBm)
+7 dBm Each Tone
(Vdc) 900 MHz 1900 MHz
-5 50 49
-8 50 49
Absolute Maximum Ratings
Outline Drawing
Max. Input Power
(VCTL = 0 / -8V)
0.05 GHz
0.5 - 2 GHz
+27 dBm
+34 dBm
Control Voltage Range (A & B) +2 to -12 Vdc
Storage Temperature -65 to +150 °C
Operating Temperature -40 to +85 °C
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
NOTES:
1. LEADFRAME MATERIAL: COPPER ALLOY
2. DIMENSIONS ARE IN INCHES [MILLIMETERS]
3. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.15 mm PER SIDE.
4. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.25 mm PER SIDE.
5. ALL GROUND LEADS MUST BE SOLDERED TO PCB RF GROUND.
Part Number Package Body Material Lead Finish MSL Rating Package Marking [3]
HMC239AS8 Low Stress Injection Molded Plastic Sn / Pb Solder MSL1 [1] HMC239A
XXXX
HMC239AS8E RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL1 [2] HMC239A
XXXX
[1] Max peak reow temperature of 235 °C
[2] Max peak reow temperature of 260 °C
[3] 4-Digit lot number XXXX
Package Information
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
SWITCHES - SPDT - SMT
0 - 4
HMC239AS8 / 239AS8E
v00.0311
GaAs MMIC SPDT SWITCH
DC - 2.5 GHz
Simple driver using inexpensive standard logic ICs provides fast switching using minimum DC current.
Typical Application Circuit
Evaluation Circuit Board
The circuit board used in the 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 eval-
uation circuit board shown above is available from
Hittite Microwave Corporation upon request.
Item Description
J1 - J3 PCB Mount SMA RF Connector
J4 - J6 DC Pin
C1 - C3 330 pF capacitor, 0402 Pkg.
U1 HMC239AS8 / HMC239AS8E SPDT Switch
PCB [2] 101780 Evaluation PCB
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Rogers 4350
List of Materials for Evaluation PCB 101782 [1]