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DSC8121AL5-T [MICREL]

Programmable Low-Jitter Precision CMOS Oscillator;
DSC8121AL5-T
型号： DSC8121AL5-T
厂家： MICREL SEMICONDUCTOR    MICREL SEMICONDUCTOR
描述：

Programmable Low-Jitter Precision CMOS Oscillator
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DSC8101 DSC8121  
Programmable Low-Jitter Precision CMOS Oscillator  
General Description  
Features  
The DSC8101 & DSC8121 series of high  
performance field-programmable oscillators  
utilizes a proven silicon MEMS technology to  
provide excellent jitter and stability over a  
Low RMS Phase Jitter: <1 ps (typ)  
High Stability: ±10, ±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  
wide  
temperatures.  
range  
of  
supply  
voltages  
and  
Using the TIMEFLASH  
programmer, the end user can easily  
program the oscillators’ frequency in the field  
for immediate testing or use in advance  
prototype development or production.  
o Ext. commercial: -20° to 70° C  
High Supply Noise Rejection: -50 dBc  
Short Lead Time: 2 Weeks  
DSC8101 has a standby feature allowing it to  
completely power-down when EN pin is  
pulled low; whereas for DSC8121, only the  
outputs are disabled when EN is low. Both  
oscillators are available in industry standard  
packages, including the small 3.2x2.5 mm2,  
and are “drop-in” replacement for standard  
4-pin CMOS quartz oscillators.  
Wide Freq. Range: 10 to 170 MHz  
Small Industry Standard Footprints  
o 2.5x2.0, 3.2x2.5, 5.0x3.2, & 7.0x5.0 mm  
Excellent Shock & Vibration Immunity  
o Qualified to MIL-STD-883  
High Reliability  
o 20x better MTF than quartz oscillators  
Low Current Consumption  
Supply Range of 2.25 to 3.6 V  
Standby & Output Enable Function  
Lead Free & RoHS Compliant  
Block Diagram  
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  
Output Enable Modes  
EN Pin  
High  
NC  
DSC8101  
Output Active  
Output Active  
Standby  
DSC8121  
Output Active  
Output Active  
Output Disabled  
DisplayPort  
Low  
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-110410-01-2  
Programmable Low-Jitter Precision CMOS Oscillator  
DSC8101 DSC8112  
Absolute Maximum Ratings  
Ordering Code  
Item  
Min  
-0.3  
-0.3  
-
Max  
+4.0  
Unit Condition  
Temp Range  
E: -20 to 70  
I: -40 to 85  
L: -40 to 105  
M: -55 to 125  
Supply Voltage  
Input Voltage  
Junction Temp  
Storage Temp  
Soldering Temp  
V
V
Enable Modes  
0: Enable/Standby  
2: Enable/Disable  
Packing  
T: Tape & Reel  
: Tube  
VDD+0.3  
+150  
°C  
°C  
°C  
V
-55  
-
+150  
DSC81 0 1 C I 5  
T
-
+260  
40sec max.  
Package  
ESD  
HBM  
MM  
-
A: 7.0x5.0mm  
B: 5.0x3.2mm  
C: 3.2x2.5mm  
D: 2.5x2.0mm  
Stability  
1: ±50ppm  
2: ±25ppm  
5: ±10ppm  
4000  
400  
1500  
CDM  
Note: 1000+ years of data retention on internal memory  
Specifications  
Parameter  
Condition  
Min.  
Typ.  
Max.  
Unit  
Supply Voltage1  
VDD  
IDD  
2.25  
3.6  
V
EN pin low – output is disabled  
DSC8101  
Supply Current  
0.095  
22  
mA  
DSC8121  
20  
Frequency Stability  
Ext Comm. & Ind. only  
All temp ranges  
Includes frequency variations due  
to initial tolerance, temp. and  
power supply voltage  
±10  
±25  
±50  
Δf  
ppm  
All temp ranges  
Aging  
Startup Time2  
Δf  
tSU  
1 year @25°C  
T=25°C  
±5  
5
ppm  
ms  
Input Logic Levels  
Input logic high  
Input logic low  
VIH  
VIL  
0.75xVDD  
-
-
V
0.25xVDD  
Output Disable Time3  
Output Enable Time  
Enable Pull-Up Resistor4  
tDA  
5
ns  
DSC8101  
DSC8121  
5
20  
ms  
ns  
tEN  
Pull-up resistor exist  
40  
31  
kΩ  
CMOS Output  
output is enabled  
CL=15pF, F0=125 MHz  
Supply Current4  
IDD  
35  
mA  
V
Output Logic Levels  
Output logic high  
Output logic low  
VOH  
VOL  
I=±6mA  
0.9xVDD  
-
-
0.1xVDD  
Output Transition time3  
Rise Time  
20% to 80%  
CL=15pF  
tR  
tF  
1.1  
1.3  
2
2
ns  
Fall Time  
All temp range except Auto  
Auto temp range  
10  
45  
170  
100  
Frequency  
f0  
MHz  
%
Output Duty Cycle  
Period Jitter  
SYM  
JPER  
55  
Fout=125MHz  
3
psRMS  
200kHz to 20MHz @ 125MHz  
100kHz to 20MHz @ 125MHz  
12kHz to 20MHz @ 125MHz  
0.3  
0.38  
1.7  
Integrated Phase Noise  
JPH  
psRMS  
2
1.  
2.  
3.  
4.  
Pin 6 VDD should be filtered with 0.1uf capacitor.  
tsu is time to 100PPM of output frequency after VDD is applied and outputs are enabled.  
Output Waveform and Test Circuit figures below define the parameters.  
Output is enabled if pad is floated or not connected.  
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-110410-01-2  
Programmable Low-Jitter Precision CMOS Oscillator  
DSC8101 DSC8112  
Nominal Performance Parameters (Unless specified otherwise: T=25° C, VDD=3.3 V)  
2.5  
2.0  
1.5  
1.0  
0.5  
0.0  
0
-10  
-20  
-30  
-40  
-50  
-60  
-70  
-80  
25MHz-CMOS  
50MHz-CMOS  
106MHz-CMOS  
125MHz-CMOS  
50-mV  
100-mV  
0
200  
400  
600  
800  
1000  
0.1  
1
10  
100  
1000  
10000  
Low-end of integration BW: x kHz to 20 MHz  
Supply Noise Frequency (kHz)  
Phase jitter (integrated phase noise)  
Power supply rejection ratio  
Output Waveform  
tR  
tF  
VOH  
Output  
Enable  
VOL  
tEN  
1/fo  
tDA  
VIH  
VIL  
Typical Termination Scheme  
VDD  
0.1uF  
Rs  
6
2
3
5
4
50 Ω  
CL CMOS load  
capacitance  
Rs = 0 Ω for test  
Rs serves to match the trace  
impedances. Depending on  
board layout, the value may  
rangefrom0 to 30 ohms.  
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-110410-01-2  
Programmable Low-Jitter Precision CMOS Oscillator  
DSC8101 DSC8112  
Test Circuit  
IDD  
5
2
4
6
1
3
0.1uF  
VDD  
15pF  
VDA  
Board Layout (recommended)  
Solder Reflow Profile  
20-40  
Sec  
260°C  
MSL 1 @ 260°C refer to JSTD-020C  
Ramp-Up Rate (200°C to Peak Temp) 3°C/Sec Max.  
217°C  
200°C  
60-150  
Sec  
Preheat Time 150°C to 200°C  
Time maintained above 217°C  
Peak Temperature  
Time within 5°C of actual Peak  
Ramp-Down Rate  
60-180 Sec  
60-150 Sec  
255-260°C  
20-40 Sec  
6°C/Sec Max.  
8 min Max.  
Reflow  
60-180  
Sec  
150°C  
Cool  
Pre heat  
Time 25°C to Peak Temperature  
25°C  
Time  
8 min max  
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-110410-01-2  
Programmable Low-Jitter Precision CMOS Oscillator  
DSC8101 DSC8112  
Package Dimensions  
7.0 x 5.0 mm Plastic Package  
5.0 x 3.2 mm Plastic Package  
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-110410-01-2  
Programmable Low-Jitter Precision CMOS Oscillator  
DSC8101 DSC8112  
3.2 x 2.5 mm Plastic Package  
2.5 x 2.0 mm Plastic Package  
2.5±0.05 [0.098±0.002]  
0.825 [ .032 ]  
0.7±0.10 [0.028±0.004]  
0.1 [.004] REF  
0.65±0.05 [0.026±0.002]  
2.0±0.05 [0.079±0.002]  
0.25±0.05 [0.099±0.002]  
0.85 [0.033]  
0.70 [0.028]  
0.65 [0.026]  
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  
●
●
USA  
●
Email: hbwhelp@micrel.com  
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 6 |  
MK-Q-B-P-D-110410-01-2  

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