HMC321LP4 / 321LP4E
v03.0805
GaAs MMIC SP8T NON-REFLECTIVE POSITIVE CONTROL SWITCH, DC* - 8 GHz
Typical Applications
This switch is suitable for usage in DC - 8.0 GHz 50Ohm or 75-Ohm systems: • Broadband • Fiber Optics • Switched Filter Banks • Wireless below 8 GHz
Features
Broadband Performance: DC - 8 GHz High Isolation: >30 dB@ 6 GHz Low Insertion Loss: 2.5 dB@ 6 GHz Integrated Positve Supply 3:8 TTL Decoder 4x4 mm SMT Package
Functional Diagram
General Description
The HMC321LP4 & HMC321LP4E are broadband nonreflective GaAs MESFET SP8T switches in low cost leadless surface mount packages. Covering DC to 8 GHz, this switch offers high isolation and low insertion loss. This switch also includes an on board binary decoder circuit which reduces the required logic control lines to three. The switch operates using a positive control voltage of 0/+5 volts, and requires a fixed bias of +5v. This switch is suitable for usage in 50-Ohm or 75-Ohm systems.
10
SWITCHES - SMT
* DC blocking capacitors are required at ports RFC and RF1, 2, 3, 4, 5, 6, 7, 8. Their value will determine the lowest transmission frequency.
Electrical Specifi cations, TA = +25° C, With 0/+5V Control, 50 Ohm System
Parameter Insertion Loss Frequency DC - 2.0 GHz DC - 4.0 GHz DC - 8.0 GHz DC - 2.0 GHz DC - 4.0 GHz DC - 6.0 GHz DC - 8.0 GHz “On State” “Off State” DC - 4.0 GHz DC - 8.0 GHz 2.0 - 8.0 GHz 0.5 - 8.0 GHz 0.5 - 8.0 GHz 35 30 25 20 8 7 7 19 33 Min. Typ. 2.3 2.5 2.7 40 35 30 25 12 10 12 23 40 50 150 Max. 2.7 2.9 3.1 Units dB dB dB dB dB dB dB dB dB dB dBm dBm ns ns
Isolation
Return Loss Return Loss (RF1 - RF8) Input Power for 1 dB Compression Input Third Order Intercept (Two-tone Input Power = +7 dBm Each Tone, 1 MHz Spacing) Switching Characteristics tRISE, tFALL (10/90% RF) tON, tOFF (50% CTL to 10/90% RF)
DC - 8.0 GHz
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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
HMC321LP4 / 321LP4E
v03.0805
GaAs MMIC SP8T NON-REFLECTIVE POSITIVE CONTROL SWITCH, DC* - 8 GHz
Insertion Loss vs. Temperature
0
Isolation
0 -10
RF1 RF2 RF3 RF4 RF5 RF6 RF7 RF8
-1 INSERTION LOSS (dB) ISOLATION (dB)
+25 C -40 C +85 C
-20 -30 -40 -50 -60 -70
-2
-3
-4
-5 0 1 2 3 4 5 6 7 8 9 FREQUENCY (GHz)
0
1
2
3
4
5
6
7
8
9
FREQUENCY (GHz)
10
SWITCHES - SMT
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Return Loss
0
0.1 and 1 dB Input Compression Point
30 INPUT COMPRESSION POINT (dBm)
-5 RETURN LOSS (dB)
25
-10
20
-15
RFC RF1-8 ON RF1-8 OFF
15
-20
0.1db Compression Point 1dB Compression Point
-25 0 1 2 3 4 5 6 7 8 9 FREQUENCY (GHz)
10 1 2 3 4 5 6 7 8 FREQUENCY (GHz)
Input Third Order Intercept Point
INPUT THIRD ORDER INTERCEPT (dBm) 50
45
40
35
30 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
HMC321LP4 / 321LP4E
v03.0805
GaAs MMIC SP8T NON-REFLECTIVE POSITIVE CONTROL SWITCH, DC* - 8 GHz
Truth Table
Control Input Signal Path State C Low Low Low Low High High High High RFCOM to: RF1 RF2 RF3 RF4 RF5 RF6 RF7 RF8
Bias Voltage & Current
Vdd Range = +5.0 Vdc ± 10% Vdd (Vdc) +5.0 Idd (Typ.) (mA) 5.0 Idd (Max.) (mA) 9.0
A Low High Low High
B Low Low High High Low Low High High
Control Voltages
State Low High Bias Condition 0 to +0.8 Vdc @ 5 uA Typical +2.0 to +5.0 Vdc @ 25 uA Typical
Low High Low High
10
SWITCHES - SMT
Note: DC blocking capacitors are required at ports RFC and RF1, 2, 3, 4, 5, 6, 7, 8. Their value will determine the lowest transmission frequency.
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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
HMC321LP4 / 321LP4E
v03.0805
GaAs MMIC SP8T NON-REFLECTIVE POSITIVE CONTROL SWITCH, DC* - 8 GHz
Absolute Maximum Ratings
Bias Voltage Range (Port Vdd) Control Voltage Range (A, B, & C) Storage Temperature Operating Temperature Maximum Input Power Vdd = +5V ESD Sensitivity (HBM) +7.0 Vdc -0.5V to Vdd +1.0 Vdc -65 to +150 °C -40 to +85 °C +26 dBm Class 1A
ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS
Outline Drawing
10
SWITCHES - SMT
NOTES: 1. LEADFRAME MATERIAL: COPPER ALLOY 2. DIMENSIONS ARE IN INCHES [MILLIMETERS] 3. LEAD SPACING TOLERANCE IS NON-CUMULATIVE. 4. PAD BURR LENGTH SHALL BE 0.15mm MAXIMUM. PAD BURR HEIGHT SHALL BE 0.05mm MAXIMUM. 5. PACKAGE WARP SHALL NOT EXCEED 0.05mm. 6. ALL GROUND LEADS AND GROUND PADDLE MUST BE SOLDERED TO PCB RF GROUND. 7. REFER TO HITTITE APPLICATION NOTE FOR SUGGESTED LAND PATTERN.
Package Information
Part Number HMC321LP4 HMC321LP4E Package Body Material Low Stress Injection Molded Plastic RoHS-compliant Low Stress Injection Molded Plastic Lead Finish Sn/Pb Solder 100% matte Sn MSL Rating MSL1 MSL1
[1]
Package Marking [3] H321 XXXX H321 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
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HMC321LP4 / 321LP4E
v03.0805
GaAs MMIC SP8T NON-REFLECTIVE POSITIVE CONTROL SWITCH, DC* - 8 GHz
Pin Descriptions
Pin Number 1, 3, 5, 7, 12, 14, 16, 18, 21, 23 2, 4, 6, 13, 15, 17, 19, 22, 24 Function Description Package bottom has exposed metal paddle that must also be connected to PCB RF ground. Interface Schematic
GND
RF1 - RF8 & RFC
This pin is DC coupled and matched to 50 Ohm. Blocking capacitors are required.
8
VDD
Supply Voltage +5V ± 10%
10
SWITCHES - SMT
9
CTLC
See truth table and control voltage table.
10
CTLB
See truth table and control voltage table.
11
CTLA
See truth table and control voltage table.
20
N/C
This pin should be connected to PCB RF ground to maximize isolation.
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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
HMC321LP4 / 321LP4E
v03.0805
GaAs MMIC SP8T NON-REFLECTIVE POSITIVE CONTROL SWITCH, DC* - 8 GHz
Evaluation PCB
10
SWITCHES - SMT
List of Materials for Evaluation PCB 104769 [1]
Item J1 - J9 J10 - J14 C1 - C9 U1 PCB [2] Description PCB Mount SMA RF Connector DC Pin 100 pF Capacitor, 0402 Pkg. HMC321LP4 / HMC321LP4E SP8T Switch 104687 Evaluation PCB 1.73” x 1.46” [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 techniques. Signal lines at the RF port should have 50 ohm impedance and the package ground leads and backside ground slug 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.
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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