The MD series is used in digital electronic systems to
reduce the Electro-Magnetic Interference (EMI). The
device uses proprietary PLL and Spread-Spectrum
Clock Generator (SSCG) technology to synthesize
from and modulate the frequency of the input crystal.
Measured radiated energy at the fundamental and
harmonic frequencies are reduced to comply with
Electro Magnetic Compliance (EMC) requirement.
The internal factory setting function enables flexible
selection of output frequency, modulation rate and
spread ratios.
Note: All above dimensions in mm
Part Ordering Information:
MD 270 0001
A: Product½Family
B: XXX = Frequency½Code
C: YYYY = Specification½Code
Applications
• Multi-function Printers
• Wired and Wireless networking devices
• Media Players
• LCD Panel
• Digital Television
• Video Surveillance
Following the above format, Saronix-eCera part numbers will be assigned upon
confirmation of exact customer requirements.
SaRonix-eCera™ is a Pericom® Semiconductor company
•
US: +1-408-435-0800 TW: +886-3-4518888
•
www.saronix-ecera.com
All specifications are subject to change without notice.
MD 3.3 REV2008_NOV17_0.2
1
3.3V CMOS SSXO
MD
MD Series Spread Spectrum Crystal Oscillator (XO)
5.0 x 3.2mm
Electrical Performance
Parameter
Min.
Typ.
Max.
Units
Notes
Output frequency
Supply voltage (V
DD
)
Supply current, output enabled
Frequency stability
16
+2.97
+3.3
67
+3.63
10
±20 to ±50
MHz
V
mA
ppm
°C
V
V
pF
%
ns
ps
As specified
@27mA
See Note 1 below
Commercial (standard)
Industrial (standard)
–
20°C to 70°C option available
-20
Operating temperature
Output logic 0, V
OL
Output logic 1, V
OH
Output load
Duty cycle
Rise and fall time
Cycle-to-Cycle jitter
45
1.2
200
90% V
DD
-40
+70
+85
10% V
DD
15
55
2.5
300
Measured 50% V
DD
Measured 20/80% of V
DD
Notes:
1. Stability includes all combinations of operating temperature, load changes, rated input (supply) voltage changes, initial calibration tolerance (25°C),
aging (1 year at 25°C average effective ambient temperature), shock and vibration.
2. For specifications othere than those listed, please contact sales.
Output Enable / Disable Function
Parameter
Min.
Typ.
Max.
Units
Notes
Input Voltage (pin 1), Output Enable
Input voltage (pin 1), Output Disable (low power standby)
Internal pullup resistance
0.7 × V
DD
0.3 × V
DD
50
V
V
kΩ
or open
Output is Hi-Z
Absolute Maximum Ratings
Parameter
Min.
Typ.
Max.
Units
Notes
Storage temperature
-55
+125
°C
Spread Options Table
Center
Spread
Down Spread
Modulation Rate Options
F
IN
/ 496
F
IN
/ 608
F
IN
/ 640
F
IN
/ 750
F
IN
/ 1088
F
IN
is the input crystal frequency
±0.25%
±0.35%
±0.45%
±0.55%
±0.625%
±0.65%
±0.85%
±1%
±1.15%
–0.5%
–0.7%
–0.9%
–1.1%
–1.3%
–1.7%
–2.0%
–2.3%
SaRonix-eCera™ is a Pericom® Semiconductor company
•
US: +1-408-435-0800 TW: +886-3-4518888
•
www.saronix-ecera.com
All specifications are subject to change without notice.
MD 3.3 REV2008_NOV17_0.2
2
3.3V CMOS SSXO
MD
MD Series Spread Spectrum Crystal Oscillator (XO)
5.0 x 3.2mm
Spectral Plot without SSXO
Spectral Plot with SSXO
SSC Modulation Width
SaRonix-eCera™ is a Pericom® Semiconductor company
•
US: +1-408-435-0800 TW: +886-3-4518888
•
www.saronix-ecera.com
All specifications are subject to change without notice.
MD 3.3 REV2008_NOV17_0.2
3
3.3V CMOS SSXO
MD
MD Series Spread Spectrum Crystal Oscillator (XO)
5.0 x 3.2mm
Test Circuit
Test Point
4
0.1µF
or
0.01µF
1
Power
Supply
3
2
15 pF
(Including probe
and fixture
capacitance)
Output Enable / Disable Function
Reflow Soldering Profile
As per IPC/JEDEC J-STD-020C
1 to 3°C/sec max
Peak 260°C for 10 sec max
1 to 3°C/sec
217
Temperature – °C
260
Time
60 to 90 sec
4 to 6 minutes max
Reliability Test Ratings
Type
This product is rated to meet the following test conditions:
模拟电子
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