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Voltage Variable Attenuator
50 20 to 3000 MHz
Features
-55C to 85C -55C to 85C 12V 20V +26 dBm
Broad Band
RVA-3000+
Maximum Ratings
Operating Temperature Storage Temperature Absolute Max. Supply Voltage(V+) Absolute Max. Control Voltage(Vctrl) Absolute Max. RF Input Level
Pin Connections
RF IN RF OUT V CONTROL V+ GROUND 2 10 6 14 1,3,4,5,7,8,9,11,12,13,15,16
* * * * * * * *
Broadband, 20-3000 MHz, could be used up to 4000MHz IP3, +55 dBm typ. Good VSWR at IN/OUT ports over attenuation range Fast Rise/Fall Time, 5Sec/4Sec Typ. Minimal phase deviation over attenuation range No external bias and RF matching network required Shielded case Aqueous washable
CASE STYLE: DV874 PRICE: $ 11.95 ea. QTY (10-49)
Applications
* Power level control * Feed forward amplifiers
+ RoHS compliant in accordance with EU Directive (2002/95/EC)
The +Suffix has been added in order to identify RoHS Compliance. See our web site for RoHS Compliance methodologies and qualifications.
Outline Drawing
TOP SIDE SIDE VIEW
Electrical Specifications (TAMB= 25OC)
FREQ. (MHz)
Min. Max.
MIN. INSERTION MAX. ATTENUATION INPUT CONTROL IP3 RETURN POWER SUPPLY LOSS, dB (+17V) dB (0V) POWER Voltage Current (dBm) LOSS Voltage Current (dBm) (V) (mA) (dB) (V) (mA)
Typ. Max. Typ. Min. Max. Max. Typ. Typ. Max.
PCB Land Pattern
20 - 500 500 -1500 1500 -3000 Notes:
2.8 3.0 3.6
3.5 4.0 5.0
56 40 29
39 28 22
+26 +26 +26
0 - 17 0 - 17 0 - 17
30 30 30
48 56 57
23 26 21
+5 +5 +5
10 10 10
BOTTOM SIDE
Rise/Fall time: 5Sec/4Sec Typ. Switching Time, turn on/off: 6Sec. Typ.
Equivalent Schematic
METALLIZATION SOLDER RESIST
Suggested Layout, Tolerance to be within .002
V+
Outline Dimensions ( inch ) mm
A B C D E F G H J .500 .500 .195 .100 .080 .115 .060 .040 .540 12.70 12.70 4.95 2.54 2.03 2.92 1.52 1.02 13.72 K L M N P Q R S wt. .060 .100 .135 .135 .115 .140 .070 .150 grams 1.52 2.54 3.43 3.43 2.92 3.56 1.78 3.81 1.0
RF
RF
MATCHING
IN V CONTROL
MATCHING
OUT
Demo Board MCL P/N: TB-163 Suggested PCB Layout (PL-040)
50 45
RVA-3000+ TYPICAL ATTENUATION AT 500 MHz
ATTENUATION (dB)
NOTES: 1. TRACE WIDTH IS SHOWN FOR FR4 WITH DIELECTRIC THICKNESS 0.025" 0.0025"; COPPER: 1/2 OZ. EACH SIDE. FOR OTHER MATERIALS TRACE WIDTH MAY NEED TO BE MODIFIED 2. BOTTOM SIDE OF THE PCB IS CONTINUOUS GROUND PLANE.
DENOTES PCB COPPER LAYOUT WITH SMOBC (SOLDER MASK OVER BARE COPPER) DENOTES COPPER LAND PATTERN FREE OF SOLDER MASK
40 35 30 25 20 15 10 5 0 0 3 6 9 12 15 18
CONTROL VOLTAGE (V)
REV. OR M106828 EDR-7131/1F1 RVA-3000+ RAV 071202 Page 1 of 2
Performance Charts
RVA-3000+ ATTENUATION Vs. FREQUENCY OVER CONTROL VOLTAGES
64 56
0V 2.5V 4V 8V 17V
RVA-3000+
RVA-3000+ ATTENUATION Vs. INPUT POWER OVER CONTROL VOLTAGES AT 500MHz
48 42
0V 2.5V 4V 8V 17V
ATTENUATION (dB)
ATTENUATION (dB)
48 40 32 24 16 8 0 0 500 1000 1500 2000 2500 3000 3500
36 30 24 18 12 6 0
4000
0
5
10
15
20
25
30
FREQUENCY (MHz)
INPUT POWER (dBm)
RVA-3000+ INPUT RETURN LOSS Vs. FREQUENCY OVER CONTROL VOLTAGES
48 43
0V 2.5V 4V 8V 17V
RVA-3000+ OUTPUT RETURN LOSS Vs. FREQUENCY OVER CONTROL VOLTAGES
56 50
0V 2.5V 4V 8V 17V
RETURN LOSS (dB)
38 33 28 23 18 13 8 0 500 1000 1500 2000 2500 3000 3500
RETURN LOSS (dB)
4000
44 38 32 26 20 14 8 0 500 1000 1500 2000 2500 3000 3500
4000
FREQUENCY (MHz)
FREQUENCY (MHz)
RVA-3000+ IP3 Vs. FREQUENCY OVER CONTROL VOLTAGES
65 61 57 700 600
RVA-3000+ PHASE SHIFT Vs. FREQUENCY OVER CONTROL VOLTAGES
PHASE SHIFT (DEG.)
500 400 300 200 100 0 0 500 1000 1500 2000 2500 3000 3500 4000
0V 2.5V 4V 8V 17V
IP3 (dBm)
53 49 45 41 37 33 0 500 1000 1500 2000 2500 3000 3500
0V 2.5V 4V 8V 17V
4000
FREQUENCY (MHz)
FREQUENCY (MHz)
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