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DSC1003
Low-Power Precision CMOS Oscillator
1.8~3.3V
General Description
Features
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.
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Benefits


Block Diagram
VDD
Output
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
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
Pin for pin “drop in” replacement for
industry standard oscillators
Semiconductor level reliability,
significantly higher than quartz
Longer Battery Life / Reduced Power
Compact Plastic package
Cost Effective
Applications
Resonator

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


VCO
PFD
Frac-N
PLL
Standby#

Mobile Applications
Consumer Electronics
Portable Electronics
CCD Clock for VTR Cameras
Low Profile Applications
Industrial
GND
(pin1)
All Rights Reserved. No part of this document may be copied or reproduced in any form without the prior written permission of Micrel, Inc. Micrel Inc. may update or make changes
to the contents, products, programs or services described at any time without notice. This document neither states nor implies any kind of warranty, including, but not limited to
implied warranties of merchantability or fitness for a particular use.
Page 1
MK-Q-B-P-D-083010-01-4
1.8~3.3V
DSC1003
Low-Power Precision Oscillator
Absolute Maximum Ratings1
Item
Min.
Max
Unit
Input Voltage
-0.3
VDD+0.3
V
Junction Temp
-
+150
°C
Storage Temp
-55
+150
°C
Soldering Temp
-
+260
°C
ESD
HBM
-
DSC1003
Condition
-
032.0000
T
Family
Package, Temp
& Stability
40 sec max.
Tape/
Reel
Output Freq
1.0 to 150MHz
V
4000
MM
CDM
CE1
200
1500
* See Ordering Information for details
Ordering Code
Recommended Operating Conditions
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
Specifications (VDD = 1.8 to 3.3v) TA=850C unless otherwise specified
Parameter
Symbol
Condition
Min
f0
Single Frequency
1
Frequency Tolerance
Δf
Includes frequency
variations due to initial
tolerance, temperature
and power supply voltage
Aging
Δf
Frequency
Supply Current, standby
Output Startup Time
Output Disable Time
2
Max
Unit
150
MHz
±10,±25,±50
ppm
1 year @25°C
±5
ppm
IDD
T=25°C
15
uA
tSU
T=25°C
1.0
1.3
ms
20
100
ns
tDA
Typ
Output Duty Cycle
SYM
45
55
%
Input Logic Levels
Input logic high
Input logic low
VIH
VIL
0.75*VDD
-
0.25* VDD
Volts
Notes:
1.
2.
3.
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.
tSU is time to stable output frequency after VDD is applied. tSU and tEN (after EN is asserted) are identical values.
Measured over 50k clock cycles.
All Rights Reserved. No part of this document may be copied or reproduced in any form without the prior written permission of Micrel, Inc. Micrel Inc. may update or make changes
to the contents, products, programs or services described at any time without notice. This document neither states nor implies any kind of warranty, including, but not limited to
implied warranties of merchantability or fitness for a particular use.
Page 2
MK-Q-B-P-D-083010-01-4
DSC1003
1.8~3.3V
Low-Power Precision Oscillator
VDD = 1.8v
Parameter
Supply Current, no load
Output Logic Levels
Output logic high
Output logic low
Output Transition time
Rise Time
Fall Time
Output Transition time
Rise Time
Fall Time
Period Jitter
Symbol
IDD
Condition
1MHz
CL=0p
27MHz
RL=∞
70MHz
T=25°C
150MHz
VOH
VOL
-6mA
6mA
tR
tF
CL=25pF; T=25°C
20%/80%*VDD
tR
tF
Jp
Min
Typ
5.7
6.4
7.7
10.0
0.8*VDD
-
Max
6.0
6.8
8.0
11.0
Unit
mA
0.2*VDD
Volts
1.5
1.2
3
3
ns
CL=25pF; T=25°C
10%/90%*VDD
2.6
1.9
4
4
ns
F = 100MHz3
10
15
ps rms
Typ
5.7
6.7
8.4
11.4
Max
6.0
7.1
8.8
12.7
Unit
VDD = 2.5v
Parameter
Supply Current, no load
Output Logic Levels
Output logic high
Output logic low
Output Transition time
Rise Time
Fall Time
Output Transition time
Rise Time
Fall Time
Period Jitter
Symbol
IDD
Condition
1MHz
CL=0p
27MHz
RL=∞
70MHz
T=25°C
150MHz
VOH
VOL
-6mA
6mA
tR
tF
CL=25pF; T=25°C
20%/80%*VDD
tR
tF
Jp
Min
0.8*VDD
-
mA
0.2*VDD
Volts
1.1
0.9
2
2
ns
CL=25pF; T=25°C
10%/90%*VDD
1.9
1.5
3.5
3
ns
F = 100MHz3
5
10
ps rms
Typ.
5.7
7.0
9.1
13.1
Max.
6.0
7.4
9.6
15.0
Unit
VDD = 3.3v
Parameter
Supply Current, no load
Output Logic Levels
Output logic high
Output logic low
Output Transition time
Rise Time
Fall Time
Output Transition time
Rise Time
Fall Time
Period Jitter
Symbol
IDD
Condition
1MHz
CL=0p
27MHz
RL=∞
70MHz
T=25°C
150MHz
VOH
VOL
-6mA
6mA
tR
tF
CL=25pF; T=25°C
20%/80%*VDD
tR
tF
Jp
Min.
0.9*VDD
-
mA
0.1*VDD
Volts
1.1
0.9
2
2
ns
CL=25pF; T=25°C
10%/90%*VDD
1.5
1.5
3
3
ns
F = 100MHz3
5
10
ps rms
All Rights Reserved. No part of this document may be copied or reproduced in any form without the prior written permission of Micrel, Inc. Micrel Inc. may update or make changes
to the contents, products, programs or services described at any time without notice. This document neither states nor implies any kind of warranty, including, but not limited to
implied warranties of merchantability or fitness for a particular use.
Page 3
MK-Q-B-P-D-083010-01-4
1.8~3.3V
DSC1003
Low-Power Precision Oscillator
Output Waveform
tR
tF
VOH
Output
VOL
tEN
1/fo
tDA
VIH
Standby#
VIL
Standby Function
Standby#
Output
(pin 1)
(pin 3)
Hi Level
Output ON
Open
(no connect)
Output ON
Low Level
High Impedance
Test Circuit
IDD
VDD
0.01uF
4
3
1
2
25pF
*VSD
*VSD = Standby# Logic Level Input
All Rights Reserved. No part of this document may be copied or reproduced in any form without the prior written permission of Micrel, Inc. Micrel Inc. may update or make changes
to the contents, products, programs or services described at any time without notice. This document neither states nor implies any kind of warranty, including, but not limited to
implied warranties of merchantability or fitness for a particular use.
Page 4
MK-Q-B-P-D-083010-01-4
1.8~3.3V
DSC1003
Low-Power Precision Oscillator
Board Layout (recommended)
Solder Reflow Profile
20-40
Sec
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
255-260°C
Peak Temperature
Time within 5°C of actual Peak
20-40 Sec
6°C/Sec Max.
Ramp-Down Rate
Time 25°C to Peak Temperature
8 min Max.
Se
3C
/
217°C
200°C
60-150
Sec
S
6C/
ec
3C
/
Se
cM
ax
.
Reflow
25°C
60-180
Sec
x.
150°C
Ma
Temperature (°C)
cM
ax
.
260°C
Cool
Pre heat
Time
8 min max
Package Dimensions
7.0 x 5.0 mm Plastic Package
External Dimensions
7.0±0.10 [0.276±0.004]
#4
Recommended Land Pattern*
5.08 [0.200]
5.08 [0.2]
#3
#4
#3
2.6 [0.102]
2.6 [0.102]
3.5 [0.138]
0.2 [0.008]
2.2 [0.087]
#1
#2
5.0±0.10 [0.197±0.004]
#2
1.4 [0.055]
0.2 [0.008]
#1
0.85±0.05 [0.033±0.002]
o
o
o
o
o
1.4 [0.055]
0.2 [0.008]
1.4 [0.055]
1.2 [0.047]
No.
1
2
3
4
o
Pin Terminal
Standby#
GND
Output
VDD
*Note: The center pad is not connected
internally and should be left unconnected or tied to GND.
units: mm [inch]
All Rights Reserved. No part of this document may be copied or reproduced in any form without the prior written permission of Micrel, Inc. Micrel Inc. may update or make changes
to the contents, products, programs or services described at any time without notice. This document neither states nor implies any kind of warranty, including, but not limited to
implied warranties of merchantability or fitness for a particular use.
Page 5
MK-Q-B-P-D-083010-01-4
1.8~3.3V
DSC1003
Low-Power Precision Oscillator
5.0 x 3.2 mm Plastic Package
External Dimensions
2.54 [0.100]
2.54 [0.100]
5±0.10 [0.197±0.004]
#4
Recommended Land Pattern
#3
#4
#3
1.2 [0.047]
2.1 [0.083]
0.2 [0.008]
1.1 [0.043]
0.1 [0.004]
#2
1.2 [0.047]
#1
#2
3.2±0.10 [0.126±0.004]
#1
0.1 [0.004]
1.2 [0.047]
0.9 [0.035]
No.
1
2
3
4
0.85±0.05 [0.033±0.002]
Pin Terminal
Standby#
GND
Output
VDD
units: mm [inch]
3.2 x 2.5 mm Plastic Package
External Dimensions
3.2±0.05 [0.126±0.002]
#4
Recommended Land Pattern
2.1 [0.083]
2.1 [0.083]
#3
#3
#4
0.9 [0.035]
0.9 [.035]
1.0 [0.039]
CO.25
#1
#2
#2
0.9±0.05 [0.035±0.002]
#1
2.5±0.05 [0.098±0.002]
0.8±0.1 [0.031±0.004]
0.85±0.05 [0.033±0.002]
No.
1
2
3
4
Pin Terminal
Standby#
GND
Output
VDD
0.2 [0.008]
0.9 [0.035]
units: mm [inch]
All Rights Reserved. No part of this document may be copied or reproduced in any form without the prior written permission of Micrel, Inc. Micrel Inc. may update or make changes
to the contents, products, programs or services described at any time without notice. This document neither states nor implies any kind of warranty, including, but not limited to
implied warranties of merchantability or fitness for a particular use.
Page 6
MK-Q-B-P-D-083010-01-4
1.8~3.3V
DSC1003
Low-Power Precision Oscillator
2.5 x 2.0 mm Plastic Package
External Dimensions
2.5±0.05 [0.098±0.002]
#4
Recommended Land Pattern
1.65 [0.065]
1.65 [0.065]
#3
#3
#4
0.7 [0.028]
0.7 [0.028]
0.85 [0.033]
CO.25
#1
#2
2.0±0.05 [0.079±0.002]
#2
0.65±0.05 [0.026±0.002]
#1
0.2 [0.008]
0.65 [0.026]
0.65±0.10 [0.026±0.004]
No
.1
2
3
4
0.85±0.05 [0.033±0.002]
Pin Terminal
Standby#
GND
Output
VDD
units: mm [inch]
Ordering Information
DSC1003 PTS – xxx.xxxx T
PART NUMBERING GUIDE
Package
(Plastic QFN)
P=A:
P=B:
P=C:
P=D:
7.0x5.0mm
5.0x3.2mm
3.2x2.5mm
2.5x2.0mm
Temperature
T=C:
T=E:
T=I:
T=L:
0o ~ +70o C
-20o ~ +70o C
-40o ~ +85o C
-40o ~ +105o C
Stability
Frequency
S=1: ±50ppm
S=2: ±25ppm
S=5: ±10ppm
XXX.XXXX
-
Packing Option
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:
Micrel makes no representations or warranties with respect to the accuracy or completeness of the information furnished in this data sheet. This information is not intended as a
warranty and Micrel does not assume responsibility for its use. Micrel reserves the right to change circuitry, specifications and descriptions at any time without notice. No
license, whether express, implied, arising by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Micrel’s terms and
conditions of sale for such products, Micrel assumes no liability whatsoever, and Micrel disclaims any express or implied warranty relating to the sale and/or use of Micrel
products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright or other intellectual property right.
MICREL, Inc.
Phone: +1 (408) 944-0800
●
●
2180 Fortune Drive,
Fax: +1 (408) 474-1000
San Jose, California
95131
● Email: hbwhelp@micrel.com
●
●
USA
www.micrel.com
All Rights Reserved. No part of this document may be copied or reproduced in any form without the prior written permission of Micrel, Inc. Micrel Inc. may update or make changes
to the contents, products, programs or services described at any time without notice. This document neither states nor implies any kind of warranty, including, but not limited to
implied warranties of merchantability or fitness for a particular use.
Page 7
MK-Q-B-P-D-083010-01-4