DSC2144FE2-E0017

DSC2144FE2-E0017 Features

The DSC2144FE2-E0017 is a programmable, highperformance dual HCSL output oscillator utilizingMicrel's proven silicon MEMS technology to provideexcellent jitter and stability while incorporatinghigh output frequency flexibility.The DSC2144FE2-E0017 allows the user toindependently modify the frequency of each outputusing I2C interface.The user can also select from two pre-programmeddefault output frequencies using the frequencyselect pin.

DSC2144FE2-E0017 General Description

DSC2144FE2-E0017 Applications

(cid:127) Consumer Electronics(cid:127) Storage Area Networks- SATA, SAS, Fibre Channel(cid:127) Passive Optical Networks- EPON, 10G-EPON, GPON, 10G-GPON(cid:127) Ethernet- 1G, 10GBASE-T/KR/LR/SR, and FCoE(cid:127) HD/SD/SDI Video & Surveillance(cid:127) PCI Express(cid:127) Automotive(cid:127) Frequency and output formats:- HCSL100/125MHz- HCSL100/125MHz(cid:127) Low RMS phase jitter: <1ps (typ)(cid:127) ±25ppm frequency stability(cid:127) -20°C to +70°C ext. commercial temperature range(cid:127) High supply noise rejection: -50dBc(cid:127) I2C programmable frequencies(cid:127) Excellent shock & vibration immunity- Qualified to MIL-STD-883(cid:127) High reliability- 20x better MTF than quartz oscillators(cid:127) Supply range of 2.25 to 3.6V(cid:127) AEC-Q100 automotive qualified(cid:127) 14-pin 3.2mm x 2.5mm QFN package

DSC2144FE2-E0017 Pin Description

May 06, 201529622Revision [email protected] or (408) 955-1690

DSC2144FE2-E0017 Operational Description

The DSC2144FE2-E0017 is a dual output HCSLoscillator consisting of a MEMS resonator and a supportingPLL IC. The two HCSL outputs are generated throughindependent 8-bit programmable dividers from the outputof the internal PLL. DSC2144FE2-E0017 allows for easyprogramming of theoutput frequencies using I2C interface.Upon power-up, the output frequencies are controlledby an internal pre-programmed memory (OTP). Thismemory stores all coefficients required by the PLL for twodifferent default frequency pairs. The control pin (FS)selects the initial pair. Once the device is powered up, anew output frequency pair can be programmed using I2Cpins. Programming details are provided in theProgramming Guide.