DSC2044FI2-F0012 Datasheet, PDF (1/6 Pages) Micrel Semiconductor – Crystal-less™ Configurable Clock Generator

DSC2044FI2-F0012
Crystal-less™ Configurable Clock Generator
General Description
The DSC2044FI2-F0012 is a programmable, high
performance dual HCSL output oscillator utilizing
Micrel's proven silicon MEMS technology to provide
excellent jitter and stability while incorporating
additional device functionality. Two HCSL outputs
are controlled by separate supply voltages to allow for
high output isolation. The frequencies of the outrputs
can be identical or independently derived from a
common PLL frequency source.
The DSC2044FI2-F0012 has provision for up to eight
user-defined pre-programmed, pin-selectable output
frequency combinations.
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
Block Diagram
Features
• Frequency and output formats:
- HCSL
100/125MHz
- HCSL
100/125MHz
• Low RMS phase jitter: <1ps (typ)
• ±25ppm frequency stability
• -40°C to +85°C industrial temperature range
• High supply noise rejection: -50dBc
• Pin-selectable configurations
- Up to 8 output frequency combinations
• 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
VDD/VDD2
Control Circuitry
÷2
÷ M1
CLK1+
100MHz HCSL
CLK1-
MEMS
FS0/FS1/FS2
OE
PLL
÷2
÷ M2
CLK2+
100MHz HCSL
CLK2-
VSS
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel [phone] • fax + 1 [phone] • http://www.micrel.com
October 02, 2015
2673
Revision 1.0
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