DSC1121AL5-10.0000 [MICROCHIP]
Oscillator,;
| 型号： | DSC1121AL5-10.0000 |
| 厂家： | 
MICROCHIP |
| 描述： | Oscillator, |
| 文件： | 总6页 (文件大小：646K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
DSC1101 DSC1121
Low-Jitter Precision CMOS Oscillator
General Description
Features
The DSC1101 & DSC1121 series of high
performance oscillators utilizes a proven
silicon MEMS technology to provide excellent
jitter and stability over a wide range of
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
supply voltages and temperatures.
By
eliminating the need for quartz or SAW
technology, MEMS oscillators significantly
enhance reliability and accelerate product
development, while meeting stringent clock
performance criteria for a variety of
communications, storage, and networking
applications.
o Ext. commercial: -20° to 70° C
High Supply Noise Rejection: -50 dBc
Short Lead Time: 2 Weeks
Wide Freq. Range: 10 to 170 MHz
DSC1101 has a standby feature allowing it to
completely power-down when EN pin is
pulled low; whereas for DSC1121, 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” replacements for standard
4-pin CMOS quartz crystal oscillators.
Small Industry Standard Footprints
o 3.2x2.5, 5.0x3.2, and 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
DSC1101
Output Active
Output Active
Standby
DSC1121
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 Discera, Inc. Discera 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
Low-Jitter Precision CMOS Oscillator
DSC1101 DSC1121
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
-55
-
+150
DSC11 0 1 C I 5
125.0000
T
+260
°C
V
40sec max.
ESD
HBM
MM
-
Package
Stability
1: ±50ppm
2: ±25ppm
5: ±10ppm
Freq (MHz)
125.0000
4000
400
1500
A: 7.0x5.0mm
B: 5.0x3.2mm
C: 3.2x2.5mm
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
DSC1101
Supply Current
0.095
22
mA
DSC1121
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
DSC1101
DSC1121
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 Discera, Inc. Discera 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
Low-Jitter Precision CMOS Oscillator
DSC1101 DSC1121
Nominal Performance Parameters (Unless specified otherwise: T=25° C, VDD=3.3 V)
0
50-mV
2.5
2.0
1.5
1.0
0.5
0.0
-10
-20
-30
-40
-50
-60
-70
-80
25MHz-CMOS
50MHz-CMOS
106MHz-CMOS
125MHz-CMOS
100-mV
0.1
1
10
100
1000
10000
Supply Noise Frequency (kHz)
0
200
400
600
800
1000
Low-end of integration BW: x kHz to 20 MHz
Power supply rejection ratio
Phase jitter (integrated phase noise)
Output Waveform
tR
tF
VOH
Output
Enable
VOL
tEN
1/fo
tDA
VIH
VIL
Typical Termination Scheme
VDD
0.1uF
6
5
2
3
4
CL CMOS load
capacitance
All Rights Reserved. No part of this document may be copied or reproduced in any form without the prior written permission of Discera, Inc. Discera 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
Low-Jitter Precision CMOS Oscillator
DSC1101 DSC1121
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 Discera, Inc. Discera 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
Low-Jitter Precision CMOS Oscillator
DSC1101 DSC1121
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 Discera, Inc. Discera 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
Low-Jitter Precision CMOS Oscillator
DSC1101 DSC1121
3.2 x 2.5 mm Plastic Package
DISCERA, Inc.
Phone: +1 (408) 432-8600
●
1961 Concourse Drive,
San Jose, California
95131
●
●
USA
●
Fax: +1 (408) 432-8609
●
Email: sales@discera.com
www.discera.com
All Rights Reserved. No part of this document may be copied or reproduced in any form without the prior written permission of Discera, Inc. Discera 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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