mc12179 Freescale Semiconductor, Inc, mc12179 Datasheet
mc12179
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mc12179 Summary of contents
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... Freescale Semiconductor, Inc. 500-2800 MHz Single Channel Frequency Synthesizer The MC12179 is a monolithic Bipolar synthesizer integrating the high frequency prescaler, phase/frequency detector, charge pump, and reference oscillator/buffer functions. When combined with an external loop filter and VCO, the MC12179 serves as a complete PLL subsystem. Motorola’s ...
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... Positive power supply for charge pump MUST be equal or greater than Bypass capacitors should be placed as close as possible to the pin and be connected directly to the ground plane. 8 OSCout O Oscillator output, for use with an external crystal as shown in Figure 1. 2 For More Information On This Product, MC12179 Symbol Min Typ I CC – 3 – ...
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... VCO 1000 pF PHASE CHARACTERISTICS The phase comparator in the MC12179 is a high speed digital phase/frequency detector circuit. The circuit determines the “lead” or “lag” phase relationship and time difference between the leading edges of the VCO ( signal and the reference ( input. The detector can cover a range of 2 radian phase difference ...
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... VCO, a loop filter, and either an external oscillator or crystal, a complete PLL sub–system can be realized. Since most of the PLL function is integrated into the MC12179, the user’s primary focus is on the loop filter design and the crystal reference circuit. Figure 13 and Figure 14 illustrate typical VCO spectrum and phase noise characteristics ...
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... If more rigorous analysis is needed, mathematical/system simulation tools can be used. For More Information On This Product, MOTOROLA RF/IF DEVICE DATA MC12179 C2 Component ...
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... NC o Let Let Let Let For More Information On This Product, MC12179 15kHz/2.5 or 6kHz (37.7krads) with a damping coefficient, 1. T(s) is the transfer function of the loop filter. Figure 8. Design Equations for the 2nd Order System VCO + T( ...
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... For the 2nd Order PLL For the 3rd Order PLL For the 4th Order PLL ( (s) For More Information On This Product, MOTOROLA RF/IF DEVICE DATA MC12179 ) ...
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... Freescale Semiconductor, Inc. Figure 13. VCO Output Spectrum with MC12179 5.0 V (ECLiPTEK 8.9 MHz Crystal and ZCOM 2500 VCO) NOTE: Spurs can be reduced further by narrowing the loop bandwidth of the PLL loop filter and/or Figure 14. Typical Phase Noise Plot, 2200 MHz VCO HP 3048A CARRIER 0 – ...
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... Figure 16. Typical Charge Pump Current versus Voltage 2.5 2.0 SINK 1.5 1.0 0.5 0.0 –0.5 –1.0 –1.5 SOURCE –2.0 –2.5 0 0.5 1.0 For More Information On This Product, MOTOROLA RF/IF DEVICE DATA MC12179 ( 5.0 V) 1.5 2.0 2.5 3.0 3.5 Voltage at PD out ( 1.5 2.0 2.5 3.0 3.5 4.0 Voltage at PD out (V) Go to: www.freescale.com –40 C +25 C +85 C 4.0 4.5 5.0 4. ...
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... For More Information On This Product, MC12179 (For the F in Input) 1000 1250 1500 1750 2000 Frequency (MHz) (For the F in Input) 1000 1250 1500 1750 2000 Frequency (MHz) Go to: www ...
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... MAXIMUM MOLD PROTRUSION 0.15 PER SIDE. 5. DIMENSION B DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.127 TOTAL IN EXCESS OF THE B DIMENSION AT MAXIMUM MATERIAL CONDITION. MILLIMETERS DIM MIN MAX A 1.35 1.75 A1 0.10 0.25 B 0.35 0.49 C 0.19 0.25 D 4.80 5.00 E 3.80 4.00 e 1.27 BSC H 5.80 6.20 h 0.25 0.50 L 0.40 1. Mfax is a trademark of Motorola, Inc. MC12179/D 11 ...