HMC245QS16
/
245QS16E
v02.0805
GaAs MMIC SP3T NON-REFLECTIVE
SWITCH, DC - 3.5 GHz
Features
Low Insertion Loss: 0.5 dB @ 2.0 GHz
Non-Reflective Design
Integrated 2:3 TTL Decoder
“All Off” Isolation State
Single Positive Suppy: Vdd = +5V
16 Lead QSOP SMT Package
Typical Applications
The HMC245QS16 / HMC245QS16E is ideal for:
• Basestation Infrastructure
• CATV / DBS
• Wireless Local Loop
8
SWITCHES - SMT
• Test Equipment
Functional Diagram
General Description
The HMC245QS16 & HMC245QS16E are low cost
non-reflective SP3T switches in 16-lead QSOP sur-
face mount packages. 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, replac-
ing 6 control lines normally required by GaAs SP3T
switches.
Electrical Specifications,
T
A
= +25° C, For TTL Control and Vdd= +5V in a 50 Ohm System
Parameter
Insertion Loss
Frequency
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
“On State”
“Off State”
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
23
22
44
40
40
35
31
26
Min.
Typ.
0.5
0.6
0.7
44
39
35
30
20
17
12
15
26
25
48
44
40
150
Max.
0.8
0.9
1.0
Units
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dBm
dBm
Isolation
Return Loss
Return Loss RF1 - 3
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)
ns
ns
8 - 118
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
HMC245QS16
/
245QS16E
v02.0805
GaAs MMIC SP3T NON-REFLECTIVE
SWITCH, DC - 3.5 GHz
Insertion Loss vs. Temperature
0
-0.5
INSERTION LOSS (dB)
-1
-1.5
-2
-2.5
-3
0
0.5
1
1.5
2
2.5
3
3.5
4
FREQUENCY (GHz)
Isolation
0
-10
-20
-30
-40
-50
-60
-70
0
0.5
1
1.5
2
2.5
3
3.5
4
FREQUENCY (GHz)
RF1
RF2
RF3
ISOLATION (dB)
+25C
+85C
-40C
8
SWITCHES - SMT
Return Loss
0
-5
RETURN LOSS (dB)
-10
-15
-20
-25
-30
0
0.5
1
1.5
2
2.5
3
3.5
4
FREQUENCY (GHz)
RFC
RF1-3 "On"
RF1-3 "Off"
Off State Isolation
0
-10
-20
-30
-40
-50
-60
-70
0
0.5
1
1.5
2
2.5
3
3.5
4
FREQUENCY (GHz)
RF1
RF2
RF3
0.1 and 1 dB Input Compression Point
30
INPUT COMPRESSION POINT (dBm)
29
28
Input Third Order Intercept Point
54
52
50
48
46
44
42
40
0.5
26
25
24
23
22
21
20
0.5
1
1.5
0.1 dB Compression Point
1 dB Compression Point
INPUT IP3 (dBm)
27
ISOLATION (dB)
2
2.5
3
3.5
4
1
1.5
2
2.5
3
3.5
4
FREQUENCY (GHz)
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 - 11
HMC245QS16
/
245QS16E
v02.0805
GaAs MMIC SP3T NON-REFLECTIVE
SWITCH, DC - 3.5 GHz
Bias Voltage & Current
Vdd Range= +5.0 Vdc ±10%
Vdd (Vdc)
+5.0
Idd (Typ) (mA)
3.0
Idd (Max) (mA)
6.0
Truth Table
Control Input
A
Low
High
B
Low
Low
High
High
Signal Path State
RF COM to:
RF1
RF2
RF3
All Off
TTL/CMOS Control Voltages
Low
High
8
SWITCHES - SMT
State
Low
High
Bias Condition
0 to +0.8 Vdc @ 5 uA Typ.
+2.0 to +5.0 Vdc @ 70 uA Typ.
8 - 120
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
HMC245QS16
/
245QS16E
v02.0805
GaAs MMIC SP3T NON-REFLECTIVE
SWITCH, DC - 3.5 GHz
Absolute Maximum Ratings
Bias Voltage Range (Port Vdd)
Control Voltage Range (A & B)
Channel Temperature
Thermal Resistance
(Insertion Loss Path)
Thermal Resistance
(Terminated Path)
Storage Temperature
Operating Temperature
Maximum Input Power
Vdd = +5 Vdc
ESD Sensitivity (HBM)
+7.0 Vdc
-0.5V to Vdd +1 Vdc
150 °C
210 °C/W
250 °C/W
-65 to +150 °C
-40 to +85 °C
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
8
SWITCHES - SMT
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.
+20 dBm (0.05 - 0.5 GHz)
+27 dBm (0.5 - 3.5 GHz)
Class 1A
Outline Drawing
Package Information
Part Number
HMC245QS16
HMC245QS16E
Package Body Material
Low Stress Injection Molded Plastic Silica
and Silicon Impregnated
RoHS-compliant Low Stress Injection Molded
Plastic Silica and Silicon Impregnated
Leadframe Plating
Sn/Pb Solder
100% Matte Tin
MSL Rating
MSL1
MSL1
[1]
Package Marking
[3]
HMC245
XXXX
HMC245
XXXX
[2]
[1] Max peak reflow temperature of 235 °C
[2] Max peak reflow temperature of 260 °C
[3] 4-Digit lot number XXXX
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 - 12
HMC245QS16
/
245QS16E
v02.0805
GaAs MMIC SP3T NON-REFLECTIVE
SWITCH, DC - 3.5 GHz
Pin Descriptions
Pin Number
1, 6, 12, 14
Function
RF3, RF2,
RF1, RFC
Description
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.
Interface Schematic
2 - 5, 7, 11, 13,
15, 16
GND
8
SWITCHES - SMT
8
Vdd
Supply Voltage +5.0 Vdc ±10%
9
B
See truth table and control voltage table.
10
A
See truth table and control voltage table.
8 - 122
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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