DSC400
Configurable Four Output, Low Jitter Crystal-less™ Clock Generator
Features
General Description
Low RMS Phase Jitter: <1 ps (typ)
The DSC400 is a four output crystal-less™
High Stability: ±25ppm, ±50ppm
clock generator. It utilizes Micrel’s proven
PureSilicon™ MEMS technology to provide
Wide Temperature Range
o Ext. commercial: -20°C to 70°C
o Industrial: -40°C to 85°C
excellent
jitter
and
stability
while
incorporating additional device functionality.
The frequencies of the outputs can be
identical or independently derived from
common PLLs.
High Supply Noise Rejection: -50 dBc
Four format configurable outputs:
o LVPECL, LVDS, HCSL, LVCMOS
Each
output
may
be
configured
independently to support a single ended
LVCMOS interface or a differential interface.
Differential options include LVPECL, LVDS, or
HCSL.
The DSC400 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.
Available Pin-Selectable frequency table
o 1 pin per bank for 2 frequency sets
Wide Freq. Range:
o 2.3 MHz – 460 MHz
20 QFN Footprint (5mm x 3.2mm)
Excellent Shock & Vibration Immunity
o Qualified to MIL-STD-883
The DSC400 is packaged in a 20-pin QFN
(5mm x 3.2mm) and is available in extended
High Reliability
o 20x better MTF than quartz based devices
commercial and
industrial
temperature
Wide Supply Range of 2.25 to 3.6 V
Lead Free & RoHS Compliant
grades.
AEC-Q100 Automotive Qualified
Block Diagram
Applications
Communications and Networks
Ethernet
o 1G, 10GBASE-T/KR/LR/SR, and FCoE
Storage Area Networks
o SATA, SAS, Fibre Channel
Passive Optical Networks
o EPON, 10G-EPON, GPON, 10G-PON
HD/SD/SDI Video & Surveillance
Automotive
Media and Video
Embedded and Industrial
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