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Three patients developed methaemoglobinaemia after eating meat contaminated with excessive nitrites. Diagnosis was delayed in the first two mild cases but was promptly made in the third most severely affected case.
A low-jitter charge-pump PLL is built in 90-nm CMOS for 1-10 Gb/s SerDes transmitter clocking. The PLL employs a programmable dual-path loop filter with integrating path and novel resistorless proportional path that can be independently controlled and accurately modeled for flexible setting of closed-loop bandwidth and peaking. Frequency is synthesized… (More)