HMC641LC4
v00.0609
GaAs MMIC SP4T NON-REFLECTIVE SWITCH, DC - 20 GHz
Features
Broadband Performance: Dc - 20 Ghz high isolation: 42 dB @ 12 Ghz Low insertion Loss: 2.1 dB @ 12 Ghz integrated 2:4 ttL Decoder 24 Lead 4x4mm SMt Package: 16mm²
Typical Applications
the hMc641Lc4 is ideal for: • telecom infrastructure • Microwave Radio & VSAt • Military & Space hybrids • test instrumentation • SAtcOM & Sensors
Functional Diagram
General Description
the hMc641Lc4 is a broadband non-reflective GaAs pheMt SP4t switch in a compact 4x4 mm ceramic package. covering Dc to 20 Ghz, this switch offers high isolation, low insertion loss and on-chip termination of isolated ports. this switch also includes an on board binary decoder circuit which reduces the number of required logic control lines from four to two. the hMc641Lc4 is controlled with 0/ -5V logic, exhibits fast switching speed and consumes much less Dc current than pin diode based solutions. the hMc641Lc4 is also available in die form as the hMc641.
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Electrical Specifications, TA = +25° C, With 0/-5V Control, Vss = -5V, 50 Ohm System
Parameter insertion Loss isolation (RFc to RF1 - RF4) Return Loss Return Loss input Power for 1 dB compression input third Order intercept (two-tone input Power= +14 dBm each tone) Switching characteristics tRiSe, tFALL (10/90% RF) tON, tOFF (50% ctL to 10/90% RF) “On State” “Off State” Frequency Dc - 12 Ghz Dc - 20 Ghz Dc - 12 Ghz Dc - 20 Ghz Dc - 12 Ghz Dc - 20 Ghz Dc - 20 Ghz 0.05 - 0.25 Ghz 0.25- 20 Ghz 0.05 - 0.25 Ghz 0.25 - 20 Ghz Dc - 20 Ghz 10 20 30 30 Min. typ. 1.6 2.3 42 40 18 17 13 15 23 30 39 15 88 Max. 2.8 3.5 Units dB dB dB dB dB dB dB dBm dBm dBm dBm ns ns
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For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, 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
HMC641LC4
v00.0609
GaAs MMIC SP4T NON-REFLECTIVE SWITCH, DC - 20 GHz
Isolation
0 -10 RF1 RF2 RF3 RF4
Insertion Loss vs. Temperature
0
INSERTION LOSS (dB)
-1
-20
ISOLATION (dB)
-2
-30 -40 -50 -60 -70
-3
+25 C +85 C -40 C
-4
-5 0 4 8 12 16 20 24
-80 0 4 8 12 16 20 24
FREQUENCY (GHz)
FREQUENCY (GHz)
Return Loss
0 -5 RFC RF1,2,3,4 On RF1,2,3,4 Off
1 dB Input Compression Point
30
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INPUT COMPRESSION POINT (dBm)
16 20 24
RETURN LOSS (dB)
-10 -15 -20 -25 -30 -35 0 4
25
20
15
10 8 12 0 2 4 6 8 10 12 14 16 18 20 22
FREQUENCY (GHz)
FREQUENCY (GHz)
Input Third Order Intercept Point @ 0 dBm Tone Power
50 45 40
IP3 (dBm)
35 30 25 20 15 0 5 10 15 20
FREQUENCY (GHz)
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, 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
HMC641LC4
v00.0609
GaAs MMIC SP4T NON-REFLECTIVE SWITCH, DC - 20 GHz
Truth Table
control input A high Low high Low B high high Low Low Signal Path State RFc to: RF1 RF2 RF3 RF4
Absolute Maximum Ratings
Bias Voltage (Vss) control Voltage Range (A & B) Maximum input Power channel temperature thermal Resistance channel to die bottom (insertion Loss Path) thermal Resistance channel to die bottom (terminated Path) Storage temperature Operating temperature eSD Sensitivity (hBM) -7V Vss -0.5V to +1V +24 dBm 150 °c 199 °c/w 219 °c/w -65 to +150 °c -40 to +85 °c class 1A
Bias Voltage & Current
Vss Range= -5.0 Vdc ±10% Vss (Vdc) -5 iss (typ) (mA) 1.7 iss (Max) (mA) 5.0
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eLectROStAtic SeNSitiVe DeVice OBSeRVe hANDLiNG PRecAUtiONS
TTL/CMOS Control Voltages
State Low high Bias condition -2.5V to 0V @ 30 µA typ. -5V to -3.8V @ 1.7 µA typ.
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For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, 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
HMC641LC4
v00.0609
GaAs MMIC SP4T NON-REFLECTIVE SWITCH, DC - 20 GHz
Outline Drawing
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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 -c6. ALL GROUND LeADS AND GROUND PADDLe MUSt Be SOLDeReD tO PcB RF GROUND. 7. cLASSiFieD AS MOiStURe SeNSitiVitY LeVeL (MSL) 1.
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, 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
HMC641LC4
v00.0609
GaAs MMIC SP4T NON-REFLECTIVE SWITCH, DC - 20 GHz
Pin Descriptions
Pin Number 1, 5, 6, 13, 18 Function N/c Description these pins are not connected internally; however, all data shown herein was measured with these pins connected to RF/Dc ground externally. these pins and the exposed ground paddle must be connected to RF/Dc ground. these pads are Dc coupled and matched to 50 Ohms. Blocking capacitors are required if RF line potential is not equal to 0V. interface Schematic
2, 4, 7, 9, 10, 12, 17, 19, 21, 22, 24 Ground Paddle 3, 8, 11, 20, 23
GND
RFc, RF1, RF2, RF3, RF4
14
Vss
Supply Voltage -5 Vdc ± 10%.
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15
ctLB
See truth table and control Voltage table.
16
ctLA
See truth table and control Voltage table.
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For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, 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
HMC641LC4
v00.0609
GaAs MMIC SP4T NON-REFLECTIVE SWITCH, DC - 20 GHz
Evaluation PCB
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List of Materials for Evaluation PCB 126511 [1]
item J1 - J5 c1 U1 PcB [2] Description PcB Mount SMA connector 1000 pF capacitor, 0402 Pkg. hMc641Lc4 Switch 126508 evaluation PcB
[1] Reference this number when ordering complete evaluation PcB [2] circuit Board Material: Rogers 4350 or Arlon FR4
the circuit board used in the application should use RF circuit design techniques. Signal lines should have 50 Ohm impedance while the package ground leads and exposed paddle should be connected directly to the ground plane similar to that shown. A sufficient number of via holes should be used to connect the top and bottom ground planes. the evaluation board should be mounted to an appropriate heat sink. the evaluation circuit board shown is available from hittite upon request.
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, 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