Low-Jitter Precision LVPECL Oscillator
DSC1102 DSC1122
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
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
DSC11 0 2 C I 5
125.0000
T
+260
40sec max.
ESD
HBM
MM
-
Package
A: 7.0x5.0mm
B: 5.0x3.2mm
C: 3.2x2.5mm
Stability
1: ±50ppm
2: ±25ppm
5: ±10ppm
Freq (MHz)
125.0000
4000
400
1500
CDM
D: 2.5x2.0mm
N: 7.0x5.0mm (no center pad)
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 – outputs are disabled
DSC1102
Supply Current
0.095
22
mA
DSC1122
20
Includes frequency variations due
to initial tolerance, temp. and
power supply voltage
±10
±25
±50
Frequency Stability
Δf
ppm
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
DSC1102
DSC1122
5
20
ms
ns
tEN
Pull-up resistor exist
LVPECL Outputs
40
kΩ
Supply Current
IDD
Output Enabled, RL=50Ω
56.5
58
mA
V
Output Logic Levels
Output logic high
Output logic low
VOH
VOL
RL=50Ω
VDD-1.08
-
-
VDD-1.55
Pk to Pk Output Swing
Output Transition time3
Rise Time
Single-Ended
800
250
mV
ps
20% to 80%
RL=50Ω, CL= 0pF
tR
tF
Fall Time
Frequency
f0
Single Frequency
Differential
2.3
48
460
52
MHz
%
Output Duty Cycle
Period Jitter
SYM
JPER
2.5
psRMS
200kHz to 20MHz @156.25MHz
100kHz to 20MHz @156.25MHz
12kHz to 20MHz @156.25MHz
0.25
0.38
1.7
Integrated Phase Noise
JPH
psRMS
2
Notes:
1.
Pin 6 VDD should be filtered with 0.1uf capacitor.
2.
3.
4.
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.
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DSC1102 | DSC1122 Page 2 MK-Q-B-P-D-110410-02-6
MICREL [ MICREL SEMICONDUCTOR ]
