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| Voltage Controlled Oscillator - VCO RQS-Series Features ! ! ! ! Frequency Range up to 3.5 GHz Compatible to Murata MQE-series Low Profile, 1.9 mm Low Power Consumption Applications ! ! ! ! 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 MIN TYP 1.1 0~5 3.3 15 0 -10 5 5 MAX 2500 2.0 UNIT MHz V V mA dBm dBc MHz/V MHz 0~2 2.7 6 -3 2 2 25 +5 10 10 General Specification 1. Load Impedance is 50 Ohms. 2. Operating temperature range is typically -40C...+85C. L(f) [dBc/Hz] 3. The package is non-hermetic. Substrate is glass-reinforced laminate, the 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 two typical RQSVCOs at 0dBm output power, 1% tuning range and 3.3V / 2.8V supply voltage. -60 -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 Phase Noise Examples SSB Phase Noise 2000MHz @ 2.8V 750MHz @ 3.3V 1 10 100 1,000 10,000 Freq-offset [kHz] (c) 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 ! vco@raltron.com ! www.raltron.com |
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