HMC253ALC4
v00.0413
GaAs MIMIC SP8T NON-REFLECTIVE
SWITCH, DC - 3.5 GHz
Typical Applications
The HMC253ALC4 is ideal for:
Features
Ceramic, RoHS Compliant 4x4 mm SMT Package
Non-Reflective Topology
Low Insertion Loss: 1.6 dB
Single Positive Supply: Vdd = +5V
Integrated 3:8 TTL/CMOS Decoder: 0/+3V
SWITCHES - MULTI-THROW - SMT
• Basestations & Repeaters
• WiMAX/WiBro & Fixed Wireless
• Cellular/3G Infrastructure
• CATV/DBS
• Military & Hi-Rel
Functional Diagram
General Description
The HMC253ALC4 is a non-reflective SP8T switch
in a leadless RoHS compliant 4x4 mm ceramic
SMT package featuring wideband operation from
DC to 3.5 GHz. The switch offers a single positive
bias and true TTL/CMOS compatibility enabling it to
operate with 0/+3V control and a +5V supply. A 3:8
decoder is integrated on the switch requiring only
3 control lines and a positive bias to select each
path. The HMC253ALC4 SP8T will replace multiple
configurations of SP4T and SPDT MMIC switches.
Electrical Specifications,
Parameter
Insertion Loss
T
A
= +25° C, For TTL Control and Vdd = +5V in a 50 Ohm system
Frequency
DC - 2.0 GHz
DC - 3.0 GHz
DC - 3.5 GHz
DC - 2.0 GHz
DC - 3.0 GHz
DC - 3.5 GHz
“On State”
“Off State”
0.3 - 3.0 GHz
0.3 - 3.5 GHz
0.3 - 3.5 GHz
0.5 - 3.5 GHz
0.5 - 3.5 GHz
0.5 - 3.5 GHz
0.3 - 3.5 GHz
30
100
ns
ns
20
40
38
34
30
Min.
Typ.
1.1
1.6
1.9
43
39
35
13
10
10
14
24
43
Max.
1.5
2.0
2.4
Units
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dBm
dBm
Isolation
Return Loss
Return Loss (RF1-8)
Input Power for 1 dB Compression
Input Third Order Intercept
(Two-Tone Input Power = +10 dBm Each Tone)
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
1
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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
HMC253ALC4
v00.0413
GaAs MIMIC SP8T NON-REFLECTIVE
SWITCH, DC - 3.5 GHz
Insertion Loss
0
-0.5
INSERTION LOSS (dB)
Insertion Loss vs. Temperature
0
-0.5
INSERTION LOSS (dB)
-1
-1
-1.5
-1.5
-2
-2
-2.5
-2.5
-3
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
-3
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
FREQUENCY (GHz)
RF1
RF2
RF3
RF4
RF5
RF6
RF7
RF8
FREQUENCY (GHz)
+25C
+85C
-40C
Return Loss
0
-5
RETURN LOSS (dB)
Isolation
0
-10
-20
ISOLATION (dB)
-30
-40
-50
-10
-15
-20
-25
-60
-70
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
-30
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
FREQUENCY (GHz)
RFC
RF1-RF8 ON
RF1-RF8 OFF
FREQUENCY (GHz)
RF1
RF2
RF3
RF4
RF5
RF6
RF7
RF8
Input IP3
55
50
Input Compression
30
28
COMPRESSION (dBm)
26
IP3 (dBm)
45
24
40
22
35
20
30
0
0.5
1
1.5
2
2.5
3
3.5
18
0
0.5
1
1.5
2
2.5
3
3.5
FREQUENCY (GHz)
RF1
RF2
RF3
RF4
RF5
RF6
RF7
RF8
FREQUENCY (GHz)
1dB COMPRESSION POINT
0.1dB COMPRESSION POINT
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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 - MULTI-THROW - SMT
2
HMC253ALC4
v00.0413
GaAs MIMIC SP8T NON-REFLECTIVE
SWITCH, DC - 3.5 GHz
Bias Voltage & Current
Vdd Range = +5 Vdc ± 10%
Truth Table
Control Input
Idd (Max.) (mA)
7.5
A
Low
High
Low
High
Low
High
Low
High
B
Low
Low
High
High
Low
Low
High
High
C
Low
Low
Low
Low
High
High
High
High
Signal Path State
RFCOM to:
RF1
RF2
RF3
RF4
RF5
RF6
RF7
RF8
SWITCHES - MULTI-THROW - SMT
Vdd (Vdc)
+5
Idd (Typ.) (mA)
4.5
TTL/CMOS Control Voltages
State
Low
High
Bias Condition
0 to +0.8 Vdc @ <1 µA Typ.
+2.0 to +5 Vdc @ 60 µA Typ.
NOTE:
DC Blocking capacitors are required at ports RFC and RF1, 2, 3, 4, 5, 6, 7, 8.
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
Absolute Maximum Ratings
Bias Voltage Range (Port Vdd)
Control Voltage Range (A, B, C)
Channel Temperature
Thermal Resistance
(channel to package ground paddle)
Through Path
Termination Path
Storage Temperature
Operating Temperature
Maximum Input Power
(Vdd = +5V)
Through Path
Terminated Path
ESD Sensitivity (HBM)
+20 dBm (0.05 - 0.5 GHz)
+25 dBm (0.5 - 3.5 GHz)
+20 dBm (0.05 - 0.5 GHz)
+23.5 dBm (0.5 - 3.5 GHz)
Class 1A
+7.0 Vdc
-0.5V to Vdd +1Vdc
150 °C
183 °C/W
274 °C/W
-65 to +150 °C
-40 to +85 °C
3
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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
HMC253ALC4
v00.0413
GaAs MIMIC SP8T NON-REFLECTIVE
SWITCH, DC - 3.5 GHz
Outline Drawing
NOTES:
1. PACKAGE BODY MATERIAL: ALUMINA
2. LEAD AND GROUND PADDLE PLATING: 30-80 MICROINCHES GOLD
OVER 50 MICROINCHES MINIMUM NICKEL.
3. DIMENSIONS ARE IN INCHES [MILLIMETERS].
4. LEAD SPACING TOLERANCE IS NON-CUMULATIVE.
5. PACKAGE WARP SHALL NOT EXCEED 0.05mm DATUM -C-
6. ALL GROUND LEADS AND GROUND PADDLE MUST BE SOLDERED TO PCB RF GROUND.
Pin Descriptions
Pin Number
1, 3, 5, 7, 12, 14, 16,
18, 20, 21, 23
2, 4, 6, 13, 15,
17, 19, 22, 24
Function
GND
RF1 - RF8
& RFC
Description
Package bottom has exposed metal paddle that must
also be connected to RF ground.
This pin is DC coupled and matched to 50 Ohms.
Blocking capacitors are required.
Interface Schematic
8
Vdd
Supply Voltage +5 Vdc ±10%
9
CTLC
10
CTLB
See truth table and control voltage table.
11
CTLA
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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 - MULTI-THROW - SMT
4
HMC253ALC4
v00.0413
GaAs MIMIC SP8T NON-REFLECTIVE
SWITCH, DC - 3.5 GHz
SWITCHES - MULTI-THROW - SMT
Evaluation Circuit Board
List of Materials for Evaluation PCB EV1HMC253ALC4
[1]
Item
J1 - J9
J10 - J14
C1 - C9
U1
PCB
[2]
Description
PCB Mount SMA Connector
DC Pin
100 pF Capacitor, 0402 Pkg.
HMC253ALC4 SP8T Switch
104687 Eval Board
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Rogers 4350
The circuit board used in the application should be
generated with proper RF circuit design techniques.
Signal lines at the RF ports should have 50 ohm
impedance while the package ground leads should be
connected directly to the ground plane similar to that
shown above. A sufficient number of via holes should
be used to connect the top and bottom ground planes.
The evaluation circuit board shown above is available
from Hittite Microwave Corporation upon request.
5
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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
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