Voltage Controlled Oscillator - VCO
RQL-Series
Raltron Electronics Corp.
RQL-GeneralSpec-020501.doc October
2004
10651 N.W. 19
th
St. Miami, Fl. 33172 USA Tel +001 305-593-6033 Fax +001 305-594-3973
vco@raltron.com
www.raltron.com
Features
Applications
Frequency up to 3 GHz
Extreme small package 7.6mm SQ
Low Phase Noise
Telecommunication
Navigation
Instrumentation
Description
The RQL-type is specifically designed for applications that demand low phase noise and
minimal space consumption. Components are selected for high-Q and tight tolerances, 9
ground-pads ensure solid ground-connection. Raltron's RQL-series is developed and
manufactured in its ISO9000 certified facility in Miami.
RF-simulation (CAE), automated test-equipment (Agilent VCO/PLL-Analyzer) and statistical process control (SPC) are
integral part of R&D and manufacturing which ensures minimal process variances and a high degree of repeatability.
Mechanical Specification
TOP
SIDE
BOTTOM
SOLDER PATTERN
Electrical Specification
PARAMETER COMMENTS,
EXAMPLES
SYMBOL
MIN
TYP
MAX
UNIT
Max Frequency
Currently available in RQR-package
fo
3000 MHz
Tuning Ratio
Ratio of upper-to-lower freq (2 = "Octave-VCO")
f-up : f-low
1.1
1.5
-
Tuning Voltage
Battery operated 2V, Stationary: 5V or higher
Vt
0~2
0~5
0~25 V
Supply Voltage
Battery operated 3.3V to 5V, Stationary up to 12V
Vcc
3.3
5
12
V
Supply Current
Dependent on Frequency and Output Power
Icc
10
20
30
mA
Output Power
Output Power Tolerance is typ. 3dB (min. 1dB)
Pout
-3
+3
+10
dBm
Harmonic Suppression
Dependent on Tuning Range and Freq
a(2fo)
-20
dBc
Pushing
Dependent on Freq, Tuning R., typ 0.1%~0.5% fo
df/dVcc
1
MHz/V
Pulling
Dependent on Freq, Output Power and Circuit.
df/dZL
3
MHz
Voltage Controlled Oscillator - VCO
RQL-Series
Raltron Electronics Corp.
RQL-GeneralSpec-020501.doc October
2004
10651 N.W. 19
th
St. Miami, Fl. 33172 USA Tel +001 305-593-6033 Fax +001 305-594-3973
vco@raltron.com
www.raltron.com
General Specification
Phase Noise
1. Load Impedance is 50 Ohms.
2. Operating temperature range is typically 40C...+85C.
3. The package is non-hermetic. Substrate is glass-reinforced laminate, cover is
folded nickel-silver.
4. Bypass-capacitors (ceramic) from Vcc to Ground are recommended: 1nF||100pF.
5. Customized specifications may deviate from this General Specification.
6. Phase-noise performance depends on the individual specification. Phase Noise is
strongly dependent on (a) frequency (b) supply voltage and (c) tuning range.
7. The phase noise graph (to right) shows the characteristic of 3 typical RQL-VCOs.
All samples have 3dBm output power and 1% tuning range. Variables are
frequency and supply voltage.
SSB Phase Noise
(see Note 7)
-150
-140
-130
-120
-110
-100
-90
-80
-70
1
10
100
1,000
10,000
Freq. Offset [kHz]
L(f) [dBc/Hz]
750 MHz @ 2.7V
1000 MHz @ 5V
150MHz @ 5V
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