HMC347C8
v01.0404
GaAs MMIC SMT HIGH ISOLATION
SPDT SWITCH, DC - 8.0 GHz
Features
Isolation: 50 dB @ 2.5 GHz
36 dB @ 8.0 GHz
Insertion Loss: 2.0 dB Typical
Non-Reflective Design
Surface Mount Ceramic Package
Typical Applications
The HMC347C8 is ideal for:
• Telecom Infrastructure
• Microwave Radio & VSAT
• Military Radios, Radar & ECM
8
SWITCHES - SMT
• Test Instrumentation
Functional Diagram
General Description
The HMC347C8 is a broadband high isolation non-
reflective GaAs MESFET SPDT switch in a non-her-
metic surface mount ceramic package. Covering DC
to 8.0 GHz, the switch features >50 dB isolation up
to 2 GHz and >35 dB isolation up to 8.0 GHz. The
switch operates using complementary negative con-
trol voltage logic lines of -5/0V and requires no bias
supply. This SPDT is an excellent replacement for the
HMC132C8 SPDT.
Electrical Specifications,
T
A
= +25° C, With 0/-5V Control, 50 Ohm System
Parameter
Insertion Loss
Frequency
DC - 2.0 GHz
DC - 6.0 GHz
DC - 8.0 GHz
DC - 2.0 GHz
DC - 6.0 GHz
DC - 8.0 GHz
“On State”
DC - 2.0 GHz
DC - 6.0 GHz
DC - 8.0 GHz
DC - 2.0 GHz
DC - 6.0 GHz
DC - 8.0 GHz
0.5 - 8.0 GHz
0.5 - 8.0 GHz
19
38
49
35
32
10
7
6
Min.
Typ.
1.7
2.0
2.4
54
40
36
13
10
9
9
6
6
23
43
Max.
2.0
2.4
2.8
Units
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dBm
dBm
Isolation
Return Loss
Return Loss RF1, RF2
Input Power for 1 dB Compression
“Off State”
Input Third Order Intercept
(Two-Tone Input Power= +7 dBm Each Tone, 1 MHz Tone Separation)
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
DC - 8.0 GHz
3
6
ns
ns
8 - 196
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
HMC347C8
v01.0404
GaAs MMIC SMT HIGH ISOLATION
SPDT SWITCH, DC - 8.0 GHz
Insertion Loss
0
Isolation
0
-10
-1
INSERTION LOSS (dB)
ISOLATION (dB)
-20
-30
-40
-50
-4
+ 25C
+ 85C
- 40C
RF1
RF2
-2
-3
8
0
1
2
3
4
5
FREQUENCY (GHz)
6
7
8
-60
-70
-5
0
1
2
3
4
5
6
7
8
FREQUENCY (GHz)
Return Loss
0
0.1 and 1 dB Input Compression Point
30
1 dB Compression Point
0.1 dB Compression Point
RETURN LOSS (dB)
-10
INPUT P1dB (dBm)
-5
25
20
-15
RFC
RF1, RF2 ON
RF1, RF2 OFF
15
-20
0
1
2
3
4
5
6
7
8
FREQUENCY (GHz)
10
0
1
2
3
4
5
6
7
8
FREQUENCY (GHz)
Input Third Order Intercept Point
50
45
INPUT IP3 (dBm)
40
35
+25C
+85C
-40C
30
0
1
2
3
4
5
6
7
8
FREQUENCY (GHz)
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
SWITCHES - SMT
HMC347C8
v01.0404
GaAs MMIC SMT HIGH ISOLATION
SPDT SWITCH, DC - 8.0 GHz
Absolute Maximum Ratings
RF Input Power (Vctl = -5V)
Control Voltage Range (A & B)
Channel Temperature
Thermal Resistance
(Insertion Loss Path)
+27 dBm
+0.5V to -7.5 Vdc
150 °C
440 °C/W
540 °C/W
-65 to +150 °C
-55 to +85 °C
Class 1A
Control Voltages
State
Low
High
Bias Condition
0 to -0.2V @ 10 uA Max.
-5V @ 10 uA Typ. to -7V @ 40 uA Typ. (± 0.5 Vdc)
8
SWITCHES - SMT
Thermal Resistance
(Terminated Path)
Storage Temperature
Operating Temperature
ESD Sensitivity (HBM)
Truth Table
Control Input
A
High
Low
B
Low
High
Signal Path State
RFC to RF1
On
Off
RFC to RF2
Off
On
Caution: Do not “Hot Switch” power levels greater than +13
dBm (Vctl = 0/-5 Vdc).
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
Outline Drawing
NOTES:
1. PACKAGE BODY MATERIAL: WHITE ALUMINA 92%
2. LEAD, PACKAGE BOTTOM MATERIAL: COPPER
3. PLATING: ELECTROLYTIC GOLD 100-200 MICROINCHES, OVER
ELECTROLYTIC NICKEL 100-250 MICROINCHES.
4. DIMENSIONS ARE IN INCHES [MILLIMETERS].
5. PACKAGE LENGTH AND WIDTH DIMENSIONS DO NOT INCLUDE LID
SEAL PROTRUSION .005 PER SIDE.
6. ALL GROUND LEADS AND GROUND PADDLE MUST BE SOLDERED
TO PCB RF GROUND.
8 - 198
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
HMC347C8
v01.0404
GaAs MMIC SMT HIGH ISOLATION
SPDT SWITCH, DC - 8.0 GHz
Suggested Driver Circuit
8
SWITCHES - SMT
Pin Descriptions
Pin Number
1, 4, 7
Function
RFC, RF1, RF2
Description
This pin is DC coupled and matched to 50 Ohm. Blocking
capacitors are required if RF line potential is not equal to 0V.
Package bottom must also
be connected to PCB RF ground.
Interface Schematic
2, 3, 8
GND
5
CTLA
See truth table and control voltage table.
6
CTLB
See truth table and control voltage table.
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
HMC347C8
v01.0404
GaAs MMIC SMT HIGH ISOLATION
SPDT SWITCH, DC - 8.0 GHz
Evaluation PCB
8
SWITCHES - SMT
List of Materials for Evaluation PCB 107261
[1]
Item
J1 - J3
J4 - J6
U1
PCB
[2]
Description
PCB Mount SMA RF Connector
DC Pin
HMC347C8 SPDT Switch
102088 Evaluation PCB
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Rogers 4350
The circuit board used in the final 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.
8 - 200
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
聊聊、笑笑、闹闹
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
