DSC400-4444Q0023
Crystal-less™ Configurable Clock Generator
General Description
Features
The DSC400-4444Q0023 is
a
four output
• Frequencies and output formats:
- 100MHz HCSL x 2
- 156.25MHz HCSL x 2
• Low RMS phase jitter: <1ps (typ)
• High stability: ±25ppm, ±50ppm
• Wide temperature range
- Industrial: -40°C to +85°C
- Ext. commercial: -20°C to +70°C
crystal-less™ clock generator. It utilizes Microchip's
proven PureSilicon™ MEMS technology to provide
excellent jitter and stability while incorporating
additional device functionality.
The frequencies of the outputs can be identical or
independently derived from two shared PLLs. Each
output may be configured independently to support
LVCMOS, LVPECL, LVDS, or HCSL output
standards.
The DSC400-4444Q0023 provides two independent
select lines for choosing between two sets of pre-
configured frequencies per bank. It also has two OE
pins to allow for enabling and disabling outputs.
• High supply noise rejection: -50dBc
• Available pin-selectable frequency table
- 1 pin per bank for 2 frequency sets
• Excellent shock & vibration immunity
- Qualified to MIL-STD-883
• High reliability
Applications
- 20x better MTF than quartz based devices
• Supply range of 2.25V to 3.6V
• AEC-Q100 automotive qualified
• 20-pin 5mm x 3.2mm QFN package
• Communications and Networks
• Ethernet
- 1G, 10GBASE-T/KR/LR/SR, and FCoE
• Storage Area Networks
- SATA, SAS, Fibre Channel
• Passive Optical Networks
- EPON, 10G-EPON, GPON, 10G-GPON
• HD/SD/SDI Video & Surveillance
• Automotive
• Media and Video
• Embedded and Industrial
VDD1/VDD2
Block Diagram
Control Circuitry
CLK1+
100MHz HCSL
CLK1-
CLK4+
100MHz HCSL
CLK4-
Output
Control
And
MEMS
PLL
Dividers
OE1
FSB1
Control Circuitry
CLK3+
156.25MHz HCSL
CLK3-
CLK2+
156.25MHz HCSL
CLK2-
Output
Control
And
MEMS
PLL
Dividers
OE2
FSB2
ClockWorks is a registered trademark of Microchip Technology Inc.
VSS
Microchip Technology Inc.
http://www.microchip.com
October 07, 2016
4434
Revision 1.0
tcghelp@microchip.com