Text preview for : GRVO3.pdf part of Rficsolutions Inc. GRV03 The GRV03 is 14 to 21 GHz: broadband Negative
Resistance Generator designed using 2 um HBT
Technology. The GRV03 consumes only 4 mA
current and the die area is very small.
The phase noise of the oscillator can be improved
using external high Q resonator.
Functional Diagram .
The buffer Amplifier is followed by the VCO to
improve the output power.
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RFIC Solutions Inc.
Negative Resistance Generator
Description .
Preliminary Datasheet GRV03
Functional Diagram
.
The GRV03 is 14 to 21 GHz: broadband Negative Resistance Generator designed using 2 um HBT Technology. The GRV03 consumes only 4 mA current and the die area is very small. The phase noise of the oscillator can be improved using external high Q resonator. The buffer Amplifier is followed by the VCO to improve the output power. Applications. · Digital Radio · SATCOM · VSAT · Multipoint Radios · LMDS (Local Multipoint Distribution Services) . Key Features. . · Broadband Operation · High Frequency · High Performance · Operating Temperature 0 to 85 0C Range
Electrical Specifications.
.
Conditions: Vcc = 4.2 V & TA=25 0C
Parameter
Frequency Range Pout Phase Noise @ 15 GHz Offset @ 100kHz @ 1 MHz Phase Noise @ 21 GHz Offset @ 100kHz @ 1 MHz Input Reflection Coefficient @ 15 GHz @ 20 GHz Operating Current Supply voltage
Min
14.0 2 -107.4 -112.9 -74 -97
Typical
Max
21.0 7
Units
GHz dBm dBc dBc dBc dBc
5 4 3.5 4.2
dB dB mA V
March 12, 2007
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RFIC Solutions Inc.
Negative Resistance Generator
Simulated Results. .
Preliminary Datasheet GRV03
Input Reflection Coefficient
6 5 4 3 2 1 0 -1 0 2 4 6 8 10 12 14 16 18 20 freq, GH z
25 20
Freq & Pout
F r e q. (G z) & P o u t (dBm) V Va r a c t o r H s
Frequency of oscillation Pout
dB(S(1,1))
15 10 5 0 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5
C a p a c i t a n c e (pF)
Varactor capacitance= 0.1 pF
Varactor capacitance= 0.35 pF
Phase Noise
-70 -75 pnmx, dBc
Phase Noise
-107 -108 pnmx, dBc -109 -110 -111 -112 -113 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 noisefreq, MHz
-80 -85 -90 -95 -100 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 noisefreq, MHz
Power Output
10 dBm(Voutput) -10 -20 -30 -40 -50 0 10 20 30 freq, GHz 40 50 60
Power Output
20 dBm(Voutput) 0 -20 -40 -60 -80 0 10 20 30 40 50 60 70 80 90 freq, GHz
0
March 12, 2007
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RFIC Solutions Inc.
Negative Resistance Generator
Os cilla tion B uild Up
400 200
1.0
Preliminary Datasheet GRV03
Os cilla tion B uild Up
0.5
V output, m V
0 -200 -400 -600 0 1 2 3 4 5
Vu u V o tp t,
0.0
-0.5
-1.0 0 1 2 3 4 5
tim nsec e,
tim nsec e,
1.0
400 200
0.5
Voutput, mV
Voutput, V
0 -200 -400 -600 49.0 49.1 49.2 49.3 49.4 49.5 49.6 49.7 49.8 49.9 50.0
0.0
-0.5
-1.0 49.0 49.1 49.2 49.3 49.4 49.5 49.6 49.7 49.8 49.9 50.0
time, nsec
time, nsec
March 12, 2007
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RFIC Solutions Inc. Proprietary Information
Data subject to change without Notice