DSC2111 DSC2211
Low-Jitter I2C/SPI Programmable Dual CMOS Oscillator
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General Description
Features
The DSC2111 and DSC2211 series of
programmable, high-performance dual CMOS
oscillators utilizes a proven silicon MEMS
technology to provide excellent jitter and
stability while incorporating high output
frequency flexibility and drive strength
control. DSC2111 and DSC2211 allow the
user to independently modify the frequency
of each output and CMOS drive strength
using I2C or SPI interface, respectively. User
can also select from two pre-programmed
default output frequencies using the control
pin.
Low RMS Phase Jitter: <1 ps (typ)
High Stability: ±25, ±50 ppm
Wide Temperature Range
o Automotive: -55° to 125° C
o Ext. Industrial: -40° to 105° C
o Industrial: -40° to 85° C
o Ext. commercial: -20° to 70° C
High Supply Noise Rejection: -50 dBc
Two Independent CMOS Outputs
I2C/SPI Programmable Freq & Drive
Short Lead Times: 2 Weeks
DSC2111 and DSC2211 are packaged in 14-
pin 3.2x2.5 mm QFN packages and available
in temperature grades from Ext. Commercial
to Automotive.
Wide Frequency Range:
o CMOS Output: 2.3 to 170 MHz
Miniature Footprint of 3.2x2.5mm
Block Diagram
Excellent Shock & Vibration Immunity
o Qualified to MIL-STD-883
High Reliability
o 20x better MTF than quartz oscillators
Supply Range of 2.25 to 3.6 V
Lead Free & RoHS Compliant
Applications
Storage Area Networks
o SATA, SAS, Fibre Channel
Passive Optical Networks
o EPON, 10G-EPON, GPON, 10G-PON
Ethernet
o 1G, 10GBASE-T/KR/LR/SR, and FCoE
HD/SD/SDI Video & Surveillance
PCI Express
Pin # DSC2111 (I2C)
DSC2211 (SPI)
3
5
6
7
NC
SDA
SCL
SCLK
MOSI
MISO
SS
CS_bar
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DSC2111 DSC2211 Page 1 MK-Q-B-P-D-12050102