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Transcript
Voltage Controlled Oscillator - VCO
RQS-Series
Features
Applications
!
!
!
!
!
!
!
!
Frequency Range up to 3.5 GHz
Compatible to Murata MQE-series
Low Profile, 1.9 mm
Low Power Consumption
Wireless Networks
Cordless Phones
Telecommunications
Navigation
Description
The RQS-series is ideally suited for cost-sensitive applications. With its small dimensions
and low power consumption, the RQS-series meets the requirements of portable and
wireless applications. A high degree of process-automation ensures consistent
performance at high volume and lowest cost.
Mechanical Specification
TOP VIEW
SIDE VIEW
BOTTOM VIEW
SOLDER PATTERN
COMMENTS
Pad / Functions:
No Industry-standard is
established for numbering
scheme of 6x8 package.
(2001/2002)
Height “H” (max):
1.9 mm / .075”
Outline Tolerances:
±0.20mm / ±.008”
Electrical Specification
PARAMETER
Max Frequency
Tuning Ratio
Tuning Voltage
Supply Voltage
Supply Current
Output Power
Harmonic Suppression
Pushing
Pulling
COMMENTS, EXAMPLES
Currently available in RQS-package
Ratio of upper-to-lower freq (2 = “Octave-VCO”)
Range is typ. 2V for battery-operated applications
Mobile devices typ. operated at 2.7V and up
Dependent on Frequency and Output Power
Output Power Tolerance is typically ±3dB
Dependent on Tuning Range and Frequency
Dependent on Freq, Tuning R., typ 0.5%~1% fo
Dependent on Freq, Output Power and Circuit.
SYMBOL
fo
f-up : f-low
Vt
Vcc
Icc
Pout
a(2fo)
df/dVcc
df/dZL
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 two typical RQSVCOs at 0dBm output power, ±1% tuning range and 3.3V / 2.8V supply voltage.
L(f) [dBc/Hz]
5. Customized specifications may deviate from this General Specification.
2
2
1.1
0~5
3.3
15
0
-10
5
5
MAX
2500
2.0
25
+5
10
10
UNIT
MHz
V
V
mA
dBm
dBc
MHz/V
MHz
SSB Phase Noise
2. Operating temperature range is typically –40°C…+85°C.
4. Bypass-capacitors (ceramic) from Vcc to Ground are recommended: 1nF||100pF.
0~2
2.7
6
-3
TYP
Phase Noise Examples
1. Load Impedance is 50 Ohms.
3. The package is non-hermetic. Substrate is glass-reinforced laminate, the cover is
folded nickel-silver.
MIN
-60
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
2000MHz @ 2.8V
750MHz @ 3.3V
1
10
100
1,000
10,000
Freq-offset [kHz]
© Raltron Electronics Corp.
RQS-GeneralSpec-020710.doc
July 2002
10651 N.W. 19th St. ! Miami, Fl. 33172 ! USA ! Tel +001 305-593-6033 ! Fax +001 305-594-3973 ! [email protected] ! www.raltron.com