Low-Jitter Configurable HCSL Oscillator
DSC2040
Absolute Maximum Ratings
Ordering Code
Item
Min
Max
Unit Condition
Temp Range
E: -20 to 70
I: -40 to 85
Packing
T: Tape & Reel
: Tube
Supply Voltage
-0.3
+4.0
V
Input Voltage
Junction Temp
Storage Temp
Soldering Temp
-0.3 VDD+0.3
V
-
-55
-
+150
+150
+260
°C
°C
°C
V
DSC2040 F I 2
xxxxx
T
40sec max.
ESD
HBM
MM
-
Package
Stability
1: ±50ppm
2: ±25ppm
5: ±10ppm
Freq (MHz)
See Freq. table
4000
400
1500
F: 3.2x2.5mm
CDM
Note: 1000+ years of data retention on internal memory
Specifications (Unless specified otherwise: T=25° C)
Parameter
Supply Voltage1
Condition
Min.
Typ.
Max.
3.6
Unit
VDD
IDD
2.25
V
Supply Current
Supply Current2
EN pin low – outputs are disabled
21
40
23
mA
EN pin high – outputs are enabled
RL=50 Ω, FO=156.25 MHz
IDD
42
mA
Includes frequency variations due
to initial tolerance, temp. and
power supply voltage
±10
±25
±50
Frequency Stability
Aging
Startup Time3
Δf
ppm
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 Time4
Output Enable Time
Pull-Up Resistor2
tDA
5
ns
ns
tEN
20
Pull-up exists on all digital IO
40
kΩ
HCSL Outputs
Output Logic Levels
Output logic high
Output logic low
VOH
VOL
RL=50Ω
0.725
-
-
0.1
V
Pk to Pk Output Swing
Output Transition time4
Rise Time
Single-Ended
750
mV
ps
20% to 80%
RL=50Ω, CL= 2pF
tR
tF
200
400
Fall Time
Frequency
f0
Single Frequency
Differential
2.3
48
460
52
MHz
%
Output Duty Cycle
Period Jitter5
SYM
JPER
FO=156.25 MHz
2.8
psRMS
200kHz to 20MHz @156.25MHz
100kHz to 20MHz @156.25MHz
12kHz to 20MHz @156.25MHz
0.25
0.37
1.7
Integrated Phase Noise
JPH
psRMS
2
Notes:
1.
Pin 4 VDD should be filtered with 0.01uf capacitor.
2.
3.
4.
5.
Output is enabled if Enable pad is floated or not connected.
tsu is time to 100PPM stable output frequency after VDD is applied and outputs are enabled.
Output Waveform and Test Circuit figures below define the parameters.
Period Jitter includes crosstalk from adjacent output.
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DSC2040 Page 3 MK-Q-B-P-D-12042610-2