14
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
14 - 1
HMC197A / 197AE
GaAs MMIC SOT26 SPDT
SWITCH, DC - 3 GHz
v01.0210
General Description
Features
Functional Diagram
Low Insertion Loss: 0.4 dB
Ultra Small Package: SOT26
Input IP3: +45 dBm
Positive Control: 0/+3V @ 3 μA
Electrical Speci cations, TA = +25° C, Vctl = 0/+3 to +8 Vdc, 50 Ohm System
Typical Applications
The HMC197A(E) is ideal for:
• MMDS & WirelessLAN
• PCMCIA Wireless Cards
• Portable Wireless
The HMC197A(E) is a low-cost SPDT switch in a
6-lead SOT26 plastic package for use in general
switching applications which require very low insertion
loss and very small size. The device can control sig-
nals from DC to 3 GHz and is especially suited for
900 MHz, 1.8 - 2.2 GHz, and 2.4 GHz ISM applica-
tions with less than 1 dB loss. The design provides
exceptional insertion loss performance, ideal for lter
and receiver switching. RF1 and RF2 are re ective
shorts when “Off”. The two control voltages require a
minimal amount of DC current and offer compatibility
with most CMOS & TTL logic families. See
HMC221A(E) for same performance in an alternate
SOT26 pin-out.
Parameter Frequency Min. Typ. Max. Units
Insertion Loss
DC - 1.0 GHz
DC - 2.0 GHz
DC - 2.5 GHz
DC - 3.0 GHz
0.4
0.45
0.7
0.8
0.7
0.8
0.9
1.1
dB
dB
dB
dB
Isolation
DC - 1.0 GHz
DC - 2.0 GHz
DC - 2.5 GHz
DC - 3.0 GHz
24
24
18
14
28
28
22
18
dB
dB
dB
dB
Return Loss
DC - 1.0 GHz
DC - 2.0 GHz
DC - 2.5 GHz
DC - 3.0 GHz
20
16
14
10
30
22
17
13
dB
dB
dB
dB
Input Power for 1dB Compression
(Vctl = 0/+5V)
0.5 - 1.0 GHz
0.5 - 3.0 GHz
25
23
30
29
dBm
dBm
Input Third Order Intercept
(Vctl = 0/+5V) (Two-tone Input Power = +7 dBm Each Tone)
0.5 - 1.0 GHz
0.5 - 3.0 GHz
40
38
45
43
dBm
dBm
Switching Characteristics DC - 3.0 GHz
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
3
10
ns
ns
14
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
14 - 2
HMC197A / 197AE
Insertion Loss
v01.0210
Isolation
Return Loss
GaAs MMIC SOT26 SPDT
SWITCH, DC - 3 GHz
Input 0.1 and 1.0 dB
Compression vs. Control Voltage
Input Third Order
Intercept Point vs. Control Voltage
-3
-2.5
-2
-1.5
-1
-0.5
0
0 0.5 1 1.5 2 2.5 3
INSERTION LOSS (dB)
FREQUENCY (GHz)
-50
-40
-30
-20
-10
0
0 0.5 1 1.5 2 2.5 3
RETURN LOSS (dB)
FREQUENCY (GHz)
44
46
48
50
52
54
23456789
900 MHz
1900 MHz
IP3 (dBm)
CONTROL INPUT (V)
15
20
25
30
35
3456789
P1dB & P0.1dB (dBm)
CONTROL INPUT (V)
1 dB at 1900 MHz
1 dB at 900 MHz
0.1 dB at 1900 MHz
0.1 dB at 900 MHz
-50
-40
-30
-20
-10
0
0 0.5 1 1.5 2 2.5 3
ISOLATION (dB)
FREQUENCY (GHz)
Distortion vs. Control Voltage
Truth Table
*Control Input Voltage Tolerances are ± 0.2 Vdc.
Control Input Third Order Intercept (dBm) +7 dBm Each Tone
(Vdc) 900 MHz 1900 MHz
+3 50 49
+5 50 49
+8 51 50
Control Input* Control Current Signal Path State
A
(Vdc)
B
(Vdc)
Ia
(μA)
Ib
(μA)
RF to
RF1
RF to
RF2
0+3-3 3ONOFF
+3 0 3 -3 OFF ON
0+5-55ONOFF
+5 0 5 -5 OFF ON
0 +8 -32 32 ON OFF
+8 0 32 -32 OFF ON
14
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
14 - 3
Compression vs. Control Voltage
Caution: Do not operate in 1dB compression at power levels above
+31 dBm (Vctl = +5 Vdc) and do not “hot switch” power levels
greater than +20 dBm (Vctl = +5Vdc). DC blocks are required at
ports RFC, RF1 and RF2.
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)
+3 21 24 21 24
+5 28 30 27 30
+8 32 34 31 33
HMC197A / 197AE
v01.0210
GaAs MMIC SOT26 SPDT
SWITCH, DC - 3 GHz
Absolute Maximum Ratings
Outline Drawing
Control Voltage Range (A & B) -0.2 to +12 Vdc
Storage Temperature -65 to +150 °C
Operating Temperature -40 to +85 °C
ESD Sensitivity (HBM) Class 1A
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
Part Number Package Body Material Lead Finish MSL Rating Package Marking [3]
HMC197A Low Stress Injection Molded Plastic Sn/Pb Solder MSL1 [1] 197A
XXXX
HMC197AE RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL1 [2] 197AE
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
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.
14
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
14 - 4
HMC197A / 197AE
v01.0210
GaAs MMIC SOT26 SPDT
SWITCH, DC - 3 GHz
Typical Application Circuit
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 5 to 8 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 Vdd = +8V
and A/B set to 0/+8V.
Evaluation Circuit Board
The circuit board used in the nal application should
be generated with proper RF circuit design tech-
niques. 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.
List of Materials for Evaluation PCB 101674 [1]
Item Description
J1 - J3 PCB Mount SMA RF Connector
J4 - J6 DC Pin
C1 - C3 330 pF Capacitor, 0603 Pkg.
U1 HMC197A / HMC197AE
SPDT Switch
PCB [2] 101658 Evaluation PCB
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Rogers 4350
