Datasheet Details
- Part number
- ICS840-77
- Manufacturer
- Integrated Circuit Systems
- File Size
- 205.00 KB
- Datasheet
- ICS840-77_IntegratedCircuitSystems.pdf
- Description
- CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER
ICS840-77 Description
PRELIMINARY Integrated Circuit Systems, Inc.ICS840-77 77.76MHZ, LVCMOS/LVTTL OSCILLATOR REPLACEMENT .
The ICS840-77 is a SONET Oscillator Replacement and a member of the HiPerClocks TM HiPerClockS™ family of high performance devices from ICS.
ICS840-77 Features
* One LVCMOS/LVTTL output, 15Ω output impedence
* Crystal oscillator interface designed for 19.44MHz, 18pF parallel resonant crystal
* Output frequency: 77.76MHz
* Random jitter: 2.82ps (typical)
* Deterministic jitter: 0.205ps (typical)
* 3.3V operati
ICS840-77 Applications
* not requiring the use of the crystal oscillator input, both XTAL_IN and XTAL_OUT can be left floating. Though not required, but for additional protection, a 1kΩ resistor can be tied from XTAL_IN to ground. SELECT PINS: All select pins have internal pull-ups and pull-downs; additional resistance is n
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