A Wide-Bandwidth Low-Voltage PLL for PowerPC^<TM> Microprocessors(Special Issue on the 1994 VLSI Circuits Symposium)
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概要
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A 3.3 V Phase-Locked-Loop (PLL) clock synthesizer implemented in 0.5 μm CMOS technology is described. The PLL supports internal to external clock frequency ratios of 1, 1.5, 2, 3, and 4 as well as numerous static power down modes for PowerPC^<TM> microprocessors.^1 The CPU clock lock range spans from 6 to 175 MHz. Lock times below 15 μs, PLL power dissipation below 10mW as well as phase error and jitter below ±100 ps have been measured. The total area of the PLL is 0.52mm^2.
- 1995-06-25
著者
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Alvarez Jose
Risc Division Motorola
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Sanchez Hector
Somerset Design Center, Motorola
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Gerosa Gianfranco
Semiconductor sector, Motorola
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Countryman Roger
Microprocessor and Memory Products Group, Motorola
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Sanchez Hector
Somerset Design Center Motorola
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Countryman Roger
Microprocessor And Memory Products Group Motorola
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Gerosa Gianfranco
Semiconductor Sector Motorola