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DSC1003 Page 1 MK-Q-B-P-D-083010-01-5
DSC1003
1.8~3.3V
Low-Power Precision CMOS Oscillator
General Description
The DSC1003 is a silicon MEMS based
CMOS oscillator offering excellent jitter and
stability performance over a wide range of
supply voltages and temperatures. The
device operates from 1 to 150MHz with
supply voltages between 1.8 to 3.3 Volts
and extended temperatures from -40ºC to
105ºC. The DSC1003 has the same
functionality and performance as the
DSC1001 but with greater output drive
(CL< 25pf).
The DSC1003 incorporates an all silicon
resonator that is extremely robust and
nearly immune to stress related fractures,
common to crystal based oscillators.
Without sacrificing the performance and
stability required of today’s systems, a
crystal-less design allows for a higher level
of reliability, making the DSC1003 ideal for
rugged, industrial, and portable
applications where stress, shock, and
vibration can damage quartz crystal based
systems.
Available in industry standard packages,
the DSC1003 can be “dropped-in” to the
same PCB footprint as standard crystal
oscillators.
Block Diagram
Standby#
PFD VCO
Frac-N
PLL
Resonator
OutputVDD
GND
(pin1)
Standby#
PFD VCO
Frac-N
PFD VCO
Frac-N
PLL
Resonator
OutputVDD
GND
(pin1)
Features
Frequency Range: 1 to 150MHz
Exceptional Stability over Temperature
o ±10 PPM , ±25 PPM, ±50 PPM
Operating voltage
o 1.7 to 3.6V
Operating Temperature Range
o Ext. Industrial -40ºC to 105ºC
o Industrial -40ºC to 85ºC
o Ext. Commercial -20ºC to 70ºC
o Commercial 0ºC to 70ºC
Low Operating and Standby Current
o 6mA Operating (40MHz)
o 15uA Standby
Ultra Miniature Footprint
o 2.5 x 2.0 x 0.85 mm
o 3.2 x 2.5 x 0.85 mm
o 5.0 x 3.2 x 0.85 mm
o 7.0 x 5.0 x 0.85 mm
Excellent Shock and Vibration
Resistance
Lead Free, RoHS & Reach SVHC
Compliant
Benefits
Pin for pin “drop in” replacement for
industry standard oscillators
Semiconductor level reliability,
significantly higher than quartz
Short mass production lead-times
Longer Battery Life / Reduced Power
Compact Plastic package
Cost Effective
Applications
Mobile Applications
Consumer Electronics
Portable Electronics
CCD Clock for VTR Cameras
Low Profile Applications
Industrial
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DSC1003 Page 2 MK-Q-B-P-D-083010-01-5
DSC1003
1.8~3.3V
Low-Power Precision Oscillator
Absolute Maximum Ratings1
Item
Min.
Max
Unit
Condition
Input Voltage
-0.3
VDD+0.3
V
Junction Temp
-
+150
°C
Storage Temp
-55
+150
°C
Soldering Temp
-
+260
°C
40 sec max.
ESD
HBM
MM
CDM
-
4000
200
1500
V
Ordering Code
Recommended Operating Conditions
Specifications (VDD = 1.8 to 3.3v) TA=850C unless otherwise specified
Notes:
1. Absolute maximum ratings are those values beyond which the safety of the device cannot be guaranteed. The device should not be
operated beyond these limits.
2. tSU is time to stable output frequency after VDD is applied. tSU and tEN (after EN is asserted) are identical values.
3. Measured over 50k clock cycles.
Parameter
Symbol
Range
Supply Voltage
VDD
1.7 – 3.6V
Output Load
ZL
R>10KΩ, C≤25pF
Operating Temperature
Option 1
Option 2
Option 3
Option 4
T
-40 to +105 °C
-40 to +85 °C
-20 to +70 °C
0 to +70 °C
Parameter
Symbol
Condition
Min
Typ
Max
Unit
Frequency
f0
Single Frequency
1
150
MHz
Frequency Tolerance
Δf
Includes frequency
variations due to initial
tolerance, temperature
and power supply voltage
±10,±25,±50
ppm
Aging
Δf
1 year @25°C
±5
ppm
Supply Current, standby
IDD
T=25°C
15
uA
Output Startup Time2
tSU
T=25°C
1.0
1.3
ms
Output Disable Time
tDA
20
100
ns
Output Duty Cycle
SYM
45
55
%
Input Logic Levels
Input logic high
Input logic low
VIH
VIL
0.75*VDD
-
-
0.25* VDD
Volts
DSC1003
032.0000
Family
Output Freq
1.0 to 150MHz
CE1
Package, Temp
& Stability
-
T
Tape/
Reel
* See Ordering Information for details
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DSC1003 Page 3 MK-Q-B-P-D-083010-01-5
DSC1003
1.8~3.3V
Low-Power Precision Oscillator
VDD = 1.8v
VDD = 2.5v
VDD = 3.3v
Parameter
Symbol
Condition
Min
Typ
Max
Unit
Supply Current, no load
IDD
CL=0p
RL=∞
T=25°C
1MHz
27MHz
70MHz
150MHz
5.7
6.4
7.7
10.0
6.0
6.8
8.0
11.0
mA
Output Logic Levels
Output logic high
Output logic low
VOH
VOL
-6mA
6mA
0.8*VDD
-
-
0.2*VDD
Volts
Output Transition time
Rise Time
Fall Time
tR
tF
CL=25pF; T=25°C
20%/80%*VDD
1.5
1.2
3
3
ns
Output Transition time
Rise Time
Fall Time
tR
tF
CL=25pF; T=25°C
10%/90%*VDD
2.6
1.9
4
4
ns
Period Jitter
Jp
F = 100MHz3
10
15
ps rms
Parameter
Symbol
Condition
Min
Typ
Max
Unit
Supply Current, no load
IDD
CL=0p
RL=∞
T=25°C
1MHz
27MHz
70MHz
150MHz
5.7
6.7
8.4
11.4
6.0
7.1
8.8
12.7
mA
Output Logic Levels
Output logic high
Output logic low
VOH
VOL
-6mA
6mA
0.8*VDD
-
-
0.2*VDD
Volts
Output Transition time
Rise Time
Fall Time
tR
tF
CL=25pF; T=25°C
20%/80%*VDD
1.1
0.9
2
2
ns
Output Transition time
Rise Time
Fall Time
tR
tF
CL=25pF; T=25°C
10%/90%*VDD
1.9
1.5
3.5
3
ns
Period Jitter
Jp
F = 100MHz3
5
10
ps rms
Parameter
Symbol
Condition
Min.
Typ.
Max.
Unit
Supply Current, no load
IDD
CL=0p
RL=∞
T=25°C
1MHz
27MHz
70MHz
150MHz
5.7
7.0
9.1
13.1
6.0
7.4
9.6
15.0
mA
Output Logic Levels
Output logic high
Output logic low
VOH
VOL
-6mA
6mA
0.9*VDD
-
-
0.1*VDD
Volts
Output Transition time
Rise Time
Fall Time
tR
tF
CL=25pF; T=25°C
20%/80%*VDD
1.1
0.9
2
2
ns
Output Transition time
Rise Time
Fall Time
tR
tF
CL=25pF; T=25°C
10%/90%*VDD
1.5
1.5
3
3
ns
Period Jitter
Jp
F = 100MHz3
5
10
ps rms
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DSC1003 Page 4 MK-Q-B-P-D-083010-01-5
DSC1003
1.8~3.3V
Low-Power Precision Oscillator
Output Waveform
Standby Function
Standby#
(pin 1)
Output
(pin 3)
Hi Level
Output ON
Open
(no connect)
Output ON
Low Level
High Impedance
Test Circuit
0.01uF
VDD
25pF
IDD
*VSD
4
1
2
3
*VSD = Standby# Logic Level Input
VOH
VOL
VIL
1/fo
Output
Standby#
tDA
tEN
tF
tR
VIH
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DSC1003 Page 5 MK-Q-B-P-D-083010-01-5
DSC1003
1.8~3.3V
Low-Power Precision Oscillator
Board Layout (recommended)
Solder Reflow Profile
MSL 1 @ 260°C refer to JSTD-020C
Ramp-Up Rate (200°C to Peak Temp)
3°C/Sec Max.
Preheat Time 150°C to 200°C
60-180 Sec
Time maintained above 217°C
60-150 Sec
Peak Temperature
255-260°C
Time within 5°C of actual Peak
20-40 Sec
Ramp-Down Rate
6°C/Sec Max.
Time 25°C to Peak Temperature
8 min Max.
60-150
Sec
20-40
Sec
60-180
Sec
8 min max
Pre heat
Reflow
Cool
Time
Temperature (°C)
3C/Sec Max.
6C/Sec Max.
200°C
217°C
150°C
25°C
260°C
3C/Sec Max.
60-150
Sec
20-40
Sec
60-180
Sec
8 min max
Pre heat
Reflow
Cool
Time
Temperature (°C)
3C/Sec Max.
6C/Sec Max.
200°C
217°C
150°C
25°C
260°C
60-150
Sec
20-40
Sec
60-180
Sec
8 min max
Pre heat
Reflow
Cool
Time
Temperature (°C)
3C/Sec Max.
6C/Sec Max.
200°C
217°C
150°C
25°C
260°C
3C/Sec Max.
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DSC1003 Page 6 MK-Q-B-P-D-083010-01-5
DSC1003
1.8~3.3V
Low-Power Precision Oscillator
Package Dimensions
7.0 x 5.0 mm Plastic Package
5.0 x 3.2 mm Plastic Package
Pin Terminal
VDD
Standby#
Output
GND
#1
#2
#3
#4
7.0±0.10 [0.276±0.004]
5.0±0.10 [0.197±0.004]
External Dimensions
#4
#3
5.08 [0.2]
#2
#1
1.2 [0.047]
1.4 [0.055]
0.85±0.05 [0.033±0.002]
Recommended Land Pattern*
1.4 [0.055]
1.4 [0.055]
5.08 [0.200]
units: mm [inch]
No.
4
1
3
2
0.2 [0.008]
2.6 [0.102]
2.6 [0.102]
0.2 [0.008]
2.2 [0.087]
3.5 [0.138]
o o
o o
o o
0.2 [0.008]
*Note: The center pad is not connected
internally and should be left un-
connected or tied to GND.
Pin Terminal
VDD
Standby#
Output
GND
#1
#2
#3
#4
5±0.10 [0.197±0.004]
3.2±0.10 [0.126±0.004]
External Dimensions
#4
#3
2.54 [0.100]
#2
#1
0.9 [0.035]
1.2 [0.047]
0.85±0.05 [0.033±0.002]
Recommended Land Pattern
1.1 [0.043]
1.2 [0.047]
2.54 [0.100]
units: mm [inch]
No.
4
1
3
2
0.2 [0.008]
0.1 [0.004]
2.1 [0.083]
1.2 [0.047]
0.1 [0.004]
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DSC1003 Page 7 MK-Q-B-P-D-083010-01-5
DSC1003
1.8~3.3V
Low-Power Precision Oscillator
3.2 x 2.5 mm Plastic Package
2.5 x 2.0 mm Plastic Package
Pin Terminal
VDD
Standby#
Output
GND
0.85±0.05 [0.033±0.002]
Recommended Land Pattern
#1
#2
#3
#4
3.2±0.05 [0.126±0.002]
2.5±0.05 [0.098±0.002]
#4
#3
#2
#1
0.8±0.1 [0.031±0.004]
0.9±0.05 [0.035±0.002]
CO.25
1.0 [0.039]
0.9 [0.035]
2.1 [0.083]
No.
4
1
3
2
2.1 [0.083]
External Dimensions
units: mm [inch]
0.9 [.035]
0.9 [0.035]
0.2 [0.008]
Pin Terminal
VDD
Standby#
Output
GND
0.85±0.05 [0.033±0.002]
Recommended Land Pattern
#1
#2
#3
#4
2.5±0.05 [0.098±0.002]
2.0±0.05 [0.079±0.002]
#4
#3
#2
#1
0.65±0.10 [0.026±0.004]
0.65±0.05 [0.026±0.002]
CO.25
0.85 [0.033]
0.65 [0.026]
0.7 [0.028]
1.65 [0.065]
No
.
4
1
3
2
0.7 [0.028]
1.65 [0.065]
External Dimensions
units: mm [inch]
0.2 [0.008]
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DSC1003 Page 8 MK-Q-B-P-D-083010-01-5
DSC1003
1.8~3.3V
Low-Power Precision Oscillator
Ordering Information
DSC1003 PTS – xxx.xxxx T
PART NUMBERING GUIDE
Package
(Plastic QFN)
Temperature
Stability
Frequency
Packing Option
P=A: 7.0x5.0mm
P=B: 5.0x3.2mm
P=C: 3.2x2.5mm
P=D: 2.5x2.0mm
T=C: 0o ~ +70o C
T=E: -20o ~ +70o C
T=I: -40o ~ +85o C
T=L: -40o ~ +105o C
S=1: ±50ppm
S=2: ±25ppm
S=5: ±10ppm
XXX.XXXX
Blank: Tubes
- T: Tape & Reel
Example: DSC1003CE1–123.0000T
The example part number above is a 123.0000MHz oscillator in Plastic 3.2x2.5mm package, with
±50ppm stability over an operating temperature of -20 to +70oC, shipped in Tape and Reel.
Disclaimer:
Discera makes no warranty of any kind, express or implied, with regard to this material,
including, but not limited to, the implied warranties of merchantability and fitness for a
particular purpose. Discera reserves the right to make changes without further notice to
materials described herein. Discera does not assume any liability arising from the
application or use of any product or circuit described herein. Discera does not authorize
its products for use a critical components in life-support systems where a malfunction or
failure may reasonably be expected to result in significant injury to the user. The
inclusion of Discera’s product in a life-support systems application implies that the
manufacturer assumes all risk of such use and in doing so indemnifies Discera against all
charges.
DISCERA, Inc. ● 1961 Concourse Drive, San Jose, California 95131 ● USA
Phone: +1 (408) 432-8600 ● Fax: +1 (408) 432-8609 ● Email: sales@discera.com ● www.discera.com
