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DSC2140 Datasheet(PDF) 3 Page - Micrel Semiconductor

Part # DSC2140
Description  Low-Jitter I2C/SPI Programmable HCSL Oscillator
PDF  5 Pages
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Manufacturer  MICREL [Micrel Semiconductor]
Direct Link  http://www.micrel.com
Logo MICREL - Micrel Semiconductor

DSC2140 Datasheet(HTML) 3 Page - Micrel Semiconductor

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______________________________________________________________________________________________________________________________________________
DSC2140 DSC2240
Page 3
MK-Q-B-P-D-12050110
DSC2140
Low-Jitter I2C/SPI Programmable HCSL Oscillator
DSC2240
Absolute Maximum Ratings
Item
Min
Max
Unit
Condition
Supply Voltage
-0.3
+4.0
V
Input Voltage
-0.3
VDD+0.3
V
Junction Temp
-
+150
°C
Storage Temp
-55
+150
°C
Soldering Temp
-
+260
°C
40sec max.
ESD
HBM
MM
CDM
-
4000
400
1500
V
Note: 1000+ years of data retention on internal memory
Ordering Code
Specifications (Unless specified otherwise: T=25° C)
Notes:
1.
Pin 4 VDD should be filtered with 0.01uf capacitor.
2.
Output is enabled if Enable pad is floated or not connected.
3.
tsu is time to 100PPM stable output frequency after VDD is applied and outputs are enabled.
4.
Output Waveform and Test Circuit figures below define the parameters.
5.
Period Jitter includes crosstalk from adjacent output.
Parameter
Condition
Min.
Typ.
Max.
Unit
Supply Voltage1
VDD
2.25
3.6
V
Supply Current
IDD
EN pin low – output is disabled
21
23
mA
Supply Current2
IDD
Output Enabled, RL=50Ω
40
42
mA
Frequency Stability
Δf
Includes frequency variations due
to initial tolerance, temp. and
power supply voltage
±10
±25
±50
ppm
Aging
Δf
1 year @25°C
±5
ppm
Startup Time2
tSU
T=25°C
5
ms
Input Logic Levels
Input logic high
Input logic low
VIH
VIL
0.75xVDD
-
-
0.25xVDD
V
Output Disable Time3
tDA
5
ns
Output Enable Time
tEN
20
ns
Pull-Up Resistor4
Pull-up exists on all digital IO
40
kΩ
HCSL Output
Output Logic Levels
Output logic high
Output logic low
VOH
VOL
RL=50Ω
0.725
-
-
0.1
V
Pk to Pk Output Swing
Single-Ended
750
mV
Output Transition time4
Rise Time
Fall Time
tR
tF
20% to 80%
RL=50Ω, CL= 2pF
200
400
ps
Frequency
f0
Single Frequency
2.3
460
MHz
Output Duty Cycle
SYM
Differential
48
52
%
Period Jitter5
JPER
FO1=156.25 MHz
2.8
psRMS
Integrated Phase Noise
JPH
200kHz to 20MHz @156.25MHz
100kHz to 20MHz @156.25MHz
12kHz to 20MHz @156.25MHz
0.25
0.37
1.7
2
psRMS
DSC2
xxxxx
Freq (MHz)
See Freq. table
-
Packing
T: Tape & Reel
: Tube
F I 2
Package
F: 3.2x2.5mm
Temp Range
E: -20 to 70
I: -40 to 85
Stability
1: ±50ppm
2: ±25ppm
5: ±10ppm
T
40
1
Prog Mode
1: I2C bus
2: SPI bus



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