AV9107C-20

Integrated Circuit Systems, Inc. AV9107C-19 AV9107C-20 Frequency Generator for Fibre Channel Systems General Description The AV9107C-19 and AV9107C-20 are high-speed clock generators designed to support fibre channel system requirements. The AV9107C-19 generates a single copy of the 106.25 MHz from a 17 MHz crystal. The AV9107C-20 provides a second copy of the 106.25 MHz clock with output skew less than ±100ps. An exact frequency multiplying ratio ensures better than ±100 ppm frequency accuracy using a standard AT crystal with external load capacitors (typically 33pF±5% for an 18pF load crystal). Achieving ±100 ppm over four years requires the crystal to have a ±20 ppm initial accuracy, ±30 ppm tempera-ture and ±5 ppm/year aging coefficients. Features • • • • • • • • Generates one or two 106.25 MHz clocks from a 17 MHz crystal Less than 60ps one sigma jitter Less than ±200ps absolute jitter Output skew less than ±100ps on two channel version (-20) Rise/fall times less than 4ns driving 15pF On-chip loop filter components 3.0V-5.5V supply range 8-pin, 150-mil SOIC package Applications • Specifically designed to support the high-speed clocking requirements of fibre channel systems Block Diagram AV 9107-19 20 RevC091897P ICS reserves the right to make changes in the device data identified in this publication without further notice. ICS advises its customers to obtain the latest version of all device data to verify that any information being relied upon by the customer is c...