查询HMC245QS16供应商
14
MICROWAVE CORPORATION
Typical Applications
The HMC245QS16 is ideal for:
• Basestation Infrastructure
• CATV / DBS
• Wireless Local Loop
• Test Equipmen
t
Functional Diagram
v01.0404
HMC245QS16
GaAs MMIC SP3T NON-REFLECTIVE
SWITCH, DC - 3.5 GHz
Features
Low Insertion Loss: 0.5 dB @ 2.0 GHz
Non-Refl ective Design
Integrated 2:3 TTL Decoder
“All Off” Isolation State
Single Positive Suppy: Vdd = +5V
16 Lead QSOP SMT Package
General Description
The HMC245QS16 is a low cost non-refl ective SP3T
switch in a 16-lead QSOP surface mount package.
Covering DC to 3.5 GHz, the switch offers 30 to 40 dB
isolation and a low insertion loss of 0.5 dB. A 2:3 TTL/
CMOS compatible decoder is integrated on the switch
requiring only 2 control lines and a single +5V bias to
select each path, replacing 6 control lines normally
required by GaAs SP3T switches.
Electrical Specifi cations,
TA = +25° C, For TTL Control and Vdd= +5V in a 50 Ohm System
Parameter Frequency Min. Typ. Max. Units
Insertion Loss
SWITCHES - SMT
14 - 132
Isolation
Return Loss “On State”
Return Loss RF1 - 3 “Off State”
Input Power for 1 dB Compression
Input Third Order Intercept
(Two-tone Input Power = +7 dBm each tone)
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
DC - 2.0 GHz
DC - 3.0 GHz
DC - 3.5 GHz
DC - 1.0 GHz
DC - 2.0 GHz
DC - 2.5 GHz
DC - 3.5 GHz
DC - 1.5 GHz
DC - 3.5 GHz
0.3 - 3.5 GHz
0.5 - 3.5 GHz
0.3 - 2.5 GHz
0.3 - 3.5 GHz
0.3 - 2.5 GHz
0.3 - 3.5 GHz
0.3 - 3.5 GHz 40
40
35
31
26
23
22
44
40
0.5
0.6
0.7
44
39
35
30
20
17
12
15
26
25
48
44
150
0.8
0.9
1.0
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
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v01.0404
HMC245QS16
MICROWAVE CORPORATION
GaAs MMIC SP3T NON-REFLECTIVE
SWITCH, DC - 3.5 GHz
GaAs MMIC SUB-HARMONICALLY PUMPED MIXER 17 - 25 GHz
Insertion Loss vs. Temperature Isolation
0
-0.5
-1
-1.5
-2
INSERTION LOSS (dB)
-2.5
+25C
+85C
-40C
0
-10
-20
-30
-40
ISOLATION (dB)
-50
-60
RF1
RF2
RF3
-3
0 0.5 1 1.5 2 2.5 3 3.5 4
FREQUENCY (GHz)
-70
0 0.5 1 1.5 2 2.5 3 3.5 4
FREQUENCY (GHz)
Return Loss Off State Isolation
0
-5
-10
-15
-20
RETURN LOSS (dB)
-25
-30
0 0.5 1 1.5 2 2.5 3 3.5 4
RFC
RF1-3 "On"
RF1-3 "Off"
FREQUENCY (GHz)
0.1 and 1 dB Input Compression Point
30
29
28
27
26
25
24
23
22
21
INPUT COMPRESSION POINT (dBm)
20
0.5 1 1.5 2 2.5 3 3.5 4
0.1 dB Compression Point
1 dB Compression Point
FREQUENCY (GHz)
0
-10
-20
-30
-40
ISOLATION (dB)
-50
-60
-70
0 0.5 1 1.5 2 2.5 3 3.5 4
RF1
RF2
RF3
FREQUENCY (GHz)
Input Third Order Intercept Point
54
52
50
48
46
INPUT IP3 (dBm)
44
42
40
0.5 1 1.5 2 2.5 3 3.5 4
FREQUENCY (GHz)
14
SWITCHES - SMT
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 - 133
MICROWAVE CORPORATION
v01.0404
HMC245QS16
GaAs MMIC SP3T NON-REFLECTIVE
SWITCH, DC - 3.5 GHz
14
Absolute Maximum Ratings
Bias Voltage Range (Port Vdd) +7.0 Vdc
Control Voltage Range (A & B) -0.5V to Vdd +1 Vdc
Channel Temperature 150 °C
Thermal Resistance
(Insertion Loss Path)
Thermal Resistance
(Terminated Path)
Storage Temperature -65 to +150 °C
Operating Temperature -40 to +85 °C
Maximum Input Power
Vdd = +5 Vdc
210 °C/W
250 °C/W
+20 dBm (0.05 - 0.5 GHz)
+27 dBm (0.5 - 3.5 GHz)
Bias Voltage & Current
Vdd Range= +5.0 Vdc ±10%
Vdd (Vdc) Idd (Typ) (mA) Idd (Max) (mA)
+5.0 3.0 6.0
Truth Table
Control Input Signal Path State
A B RF COM to:
Low Low RF1
High Low RF2
Low High RF3
High High All Off
TTL/CMOS Control Voltages
State Bias Condition
Low 0 to +0.8 Vdc @ 5 uA Typ.
High +2.0 to +5.0 Vdc @ 70 uA Typ.
SWITCHES - SMT
14 - 134
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
Outline Drawing
v01.0404
HMC245QS16
GaAs MMIC SP3T NON-REFLECTIVE
SWITCH, DC - 3.5 GHz
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.
Pin Descriptions
Pin Number Function Description Interface Schematic
1, 6, 12, 14
2 - 5, 7, 11, 13,
15, 16
8 Vdd Supply Voltage +5.0 Vdc ±10%
9 B See truth table and control voltage table.
RF3, RF2,
RF1, RFC
GND
This pin is DC coupled and matched to 50 Ohms.
Blocking capacitors are required.
This pin must be connected to PCB RF
ground to maximize isolation.
14
SWITCHES - SMT
10 A See truth table and control voltage table.
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 - 135
MICROWAVE CORPORATION
Evaluation PCB
v01.0404
HMC245QS16
GaAs MMIC SP3T NON-REFLECTIVE
SWITCH, DC - 3.5 GHz
14
List of Material
Item Description
J1 - J4 PC Mount SMA RF Connector
J5 - J8 DC Pin
C1 - C4 100 pF Capacitor, 0402 Pkg.
C5 10k pF Capacitor, 0603 Pkg.
U1 HMC245QS16 SP3T Switch
SWITCHES - SMT
PCB* 106536 Evaluation PCB
* Circuit Board Material: Rogers 4350
The circuit board used in the fi nal 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 evaluation circuit board shown above is available
from Hittite Microwave Corporation upon request.
14 - 136
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
Notes:
v01.0404
HMC245QS16
GaAs MMIC SP3T NON-REFLECTIVE
SWITCH, DC - 3.5 GHz
14
SWITCHES - SMT
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 - 137
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