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PLL CMOS phase-frequency detector with ECL charge pump

Phase-frequency detector (PFD) forms control signal for VCO tuning. PFD compares phases of divided VCO signal and divided reference oscillator signal and detects phase difference. Charge pump generates pulses for loop filter. Reference frequency 0.32…10 MHz. Output current is 40...140.5 uA.
The block is fabricated on iHP SiGe BiCMOS 0.25 um (SGB25V) technology.

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PLL CMOS phase-frequency detector charge pump PFD CP IP

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PLL CMOS phase-frequency detector with ECL charge pump

查看 PLL CMOS phase-frequency detector with ECL charge pump 详细介绍：

PLL CMOS phase-frequency detector charge pump PFD CP IP

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