Housed in 5 x 5 mm 32-pin QFN package, 3-input, 3-output Model ZL30169 integrates digital PLL, analog PLL, and EEPROM. Device provides jitter performance of 250 fs RMS, suitable for 100G coherent optical networks. APLL generates ultralow jitter output clocks programmable to any frequency from 1 Hz to 1,035 MHz. With programmable loop bandwidth from 14–500 Hz, DPLL accepts any input frequency from 1 kHz to 1,250 MHz and provides hitless reference switching, holdover, and jitter filtering.