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DSC2144FE2-E0017 Datasheet, PDF (1/6 Pages) Micrel Semiconductor – Crystal-less™ Configurable Clock Generator | |||
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DSC2144FE2-E0017
Crystal-less⢠Configurable Clock Generator
General Description
The DSC2144FE2-E0017 is a programmable, high
performance dual HCSL output oscillator utilizing
Micrel's proven silicon MEMS technology to provide
excellent jitter and stability while incorporating
high output frequency flexibility.
The DSC2144FE2-E0017 allows the user to
independently modify the frequency of each output
using I2C interface.
The user can also select from two pre-programmed
default output frequencies using the frequency
select pin.
Applications
⢠Consumer Electronics
⢠Storage Area Networks
- SATA, SAS, Fibre Channel
⢠Passive Optical Networks
- EPON, 10G-EPON, GPON, 10G-GPON
⢠Ethernet
- 1G, 10GBASE-T/KR/LR/SR, and FCoE
⢠HD/SD/SDI Video & Surveillance
⢠PCI Express
⢠Automotive
Features
⢠Frequency and output formats:
- HCSL
100/125MHz
- HCSL
100/125MHz
⢠Low RMS phase jitter: <1ps (typ)
⢠±25ppm frequency stability
⢠-20°C to +70°C ext. commercial temperature range
⢠High supply noise rejection: -50dBc
⢠I2C programmable frequencies
⢠Excellent shock & vibration immunity
- Qualified to MIL-STD-883
⢠High reliability
- 20x better MTF than quartz oscillators
⢠Supply range of 2.25 to 3.6V
⢠AEC-Q100 automotive qualified
⢠14-pin 3.2mm x 2.5mm QFN package
Block Diagram
VDD/VDD2
Control Circuitry
÷2
÷ M1
CLK1+
100MHz HCSL
CLK1-
MEMS
FS
OE
PLL
÷2
÷ M2
CLK2+
100MHz HCSL
CLK2-
VSS
Micrel Inc. ⢠2180 Fortune Drive ⢠San Jose, CA 95131 ⢠USA ⢠tel +1 (408) 944-0800 ⢠fax + 1 (408) 474-1000 ⢠http://www.micrel.com
May 06, 2015
2962
Revision 1.0
tcghelp@micrel.com or (408) 955-1690
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