Clocking IP for UMC
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2.26GHz/2.46GHz Fractional-N LC Phase-Locked Loop with oscillator
- 180XFAB_PLL_01 uses 2.25792GHz/2.4576GHz Phase locked loop frequency synthesizer for clock generation.
- It consists of the following main sub-blocks: reference oscillator; main PLL loop: Fractional-N PLL and VCO blocks; secondary digital PLL loop: synchronization subsystem; dividers block: clock generation/delivery subsystem; voltage stabilizers.
- High frequency synthesis is needed for both phase noise performance and ultra-fine frequency tuning step.
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10MHz to 50MHz fractional-N PLL synthesizer
- UMC 22nm ULP technology
- 1.8V IO power supply
- Double 0.8/1.0V Core power supply
- Embedded low noise bias
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All Digital Fractional-N RF Frequency Synthesizer PLL in UMC 40LP
- Fractional Multiplication with frequencies up to 8GHz
- Extremely low jitter (< 300fs RMS)
- Small size (< 0.05 sq mm)
- Low Power (< 15mW)
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All Digital Fractional-N PLL for Performance Computing in UMC 40LP
- Fractional multiplication with frequency up to 4GHz
- Low jitter (< 10ps RMS)
- Small size (< 0.01 sq mm)
- Low Power (< 5mW)
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General Purpose All Digital Fractional-N PLL in UMC 40LP
- Low jitter (< 18ps RMS)
- Small size (< 0.01 sq mm)
- Low Power (< 3.5mW)
- Support for multi-PLL systems
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General Purpose All Digital Fractional-N PLL in TSMC N6/N7
- Low jitter (< 18ps RMS)
- Small size (< 0.01 sq mm)
- Low Power (< 3.5mW)
- Support for multi-PLL systems
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Crystal Oscillators
- The crystal oscillator macros are available in a wide range of industry-standard quartz crystals and MEMS resonators operating in the fundamental mode in the 32 kHz to 80 MHz range.
- These oscillators, which are both power and area efficient, have a programmable transconductance to allow users to find the optimal balance between jitter and power consumption.
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Free running oscillators
- Compact and low power
- No external components
- Baseline CMOS logic process masks only
- Excellent frequency precision over PVT after trimming
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5MHz-35MHz Low Power Crystal Oscillator - TSMC 0.18µ
- 4MHz-35MHz Frequency range.
- No external bias or limit resistors required.
- Current optimization for best power at frequency.
- Amplitude control loop.
- The OSCI pad input can be used as a CMOS input for test.
- Uses single 1.8V supply.
- Enable/power down provision.
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Phase-locked loop frequency synthesizer
- CMOS UMC 65 nm
- Integer-N frequency synthesizer with good phase noise performance
- Guaranteed frequency range 550…750 MHz
- Wide continuous loop frequency divider ratio range (16..2047 with step 1) allow to cover frequency range using different reference frequency
