DSC1101 DSC1121
Low-Jitter Precision CMOS Oscillator
General Description Features
The DSC1101 & DSC1121 series of high Low RMS Phase Jitter: <1 ps (typ)
performance oscillators utilizes a proven
High Stability: 10, 25, 50 ppm
silicon MEMS technology to provide excellent
jitter and stability over a wide range of Wide Temperature Range
supply voltages and temperatures. By
o Automotive: -55 to 125 C
eliminating the need for quartz or SAW
o Ext. Industrial: -40 to 105 C
technology, MEMS oscillators significantly
o Industrial: -40 to 85 C
enhance reliability and accelerate product
o Ext. commercial: -20 to 70 C
development, while meeting stringent clock
performance criteria for a variety of
High Supply Noise Rejection: -50 dBc
communications, storage, and networking
Short Lead Time: 2 Weeks
applications.
Wide Freq. Range: 2.3 to 170 MHz
DSC1101 has a standby feature allowing it to
Small Industry Standard Footprints
completely power-down when EN pin is
o 2.5x2.0, 3.2x2.5, 5.0x3.2, & 7.0x5.0 mm
pulled low; whereas for DSC1121, only the
outputs are disabled when EN is low. Both
Excellent Shock & Vibration Immunity
oscillators are available in industry standard
o Qualified to MIL-STD-883
2
packages, including the small 3.2x2.5 mm ,
High Reliability
and are drop-in replacements for standard
o 20x better MTF than quartz oscillators
4-pin CMOS quartz crystal oscillators.
Low Current Consumption
Supply Range of 2.25 to 3.6 V
Block Diagram
Standby & Output Enable Function
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
Output Enable Modes
HD/SD/SDI Video & Surveillance
EN Pin DSC1101 DSC1121
PCI Express
High Output Active Output Active
DisplayPort
NC Output Active Output Active
Low Standby Output Disabled
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DSC1101 | DSC1121 Page 1 MK-Q-B-P-D-110410-01-6 Low-Jitter Precision CMOS Oscillator
DSC1101 DSC1121
Absolute Maximum Ratings Ordering Code
Item Min Max Unit Condition
Temp Range
E: -20 to 70
Supply Voltage -0.3 +4.0 V
Enable Modes Packing
I: -40 to 85
0: Enable/Standby T: Tape & Reel
L: -40 to 105
Input Voltage -0.3 V +0.3 V
DD
2: Enable/Disable : Tube
M: -55 to 125
Junction Temp - +150 C
Storage Temp -55 +150 C
DSC11 0 1 C I 5 125.0000 T
-
Soldering Temp - +260 C 40sec max.
ESD - V
Package Stability Freq (MHz)
HBM 4000
A: 7.0x5.0mm 1: 50ppm
125.0000
B: 5.0x3.2mm 2: 25ppm
MM 400
C: 3.2x2.5mm 5: 10ppm
CDM 1500
D: 2.5x2.0mm
N: 7.0x5.0mm (no center pad)
Note: 1000+ years of data retention on internal memory
Specifications
Parameter Condition Min. Typ. Max. Unit
1
Supply Voltage V 2.25 3.6 V
DD
EN pin low output is disabled
Supply Current I DSC1101 0.095 mA
DD
DSC1121 20 22
Frequency Stability
Includes frequency variations due
Ext Comm. & Ind. only 10
f to initial tolerance, temp. and ppm
All temp ranges 25
power supply voltage
All temp ranges 50
Aging f 1 year @25C 5 ppm
2
Startup Time t T=25C 5 ms
SU
Input Logic Levels
Input logic high V 0.75xV - V
IH DD
Input logic low V - 0.25xV
IL DD
3
Output Disable Time t 5 ns
DA
DSC1101 5 ms
Output Enable Time t
EN
DSC1121 20 ns
4
Enable Pull-Up Resistor Pull-up resistor exist 40 k
CMOS Output
output is enabled
4
Supply Current I 31 35 mA
DD
C =15pF, F =125 MHz
L 0
Output Logic Levels
Output logic high V I=6mA 0.9xV - V
OH DD
Output logic low V - 0.1xV
OL DD
3
Output Transition time
20% to 80%
Rise Time t 1.1 2 ns
R
C =15pF
L
Fall Time t 1.3 2
F
All temp range except Auto 2.3 170
Frequency f MHz
0
Auto temp range 100
Output Duty Cycle SYM 45 55 %
Fout=125MHz 3
Period Jitter J ps
PER RMS
200kHz to 20MHz @ 125MHz 0.3
Integrated Phase Noise J 100kHz to 20MHz @ 125MHz 0.38 ps
PH RMS
12kHz to 20MHz @ 125MHz 1.7 2
1. Pin 6 V should be filtered with 0.1uf capacitor.
DD
2. t is time to 100PPM of output frequency after V is applied and outputs are enabled.
su DD
3. Output Waveform and Test Circuit figures below define the parameters.
4. Output is enabled if pad is floated or not connected.
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DSC1101 | DSC1121 Page 2 MK-Q-B-P-D-110410-01-6