PL586-2X for 120~125MHz Low Close In Phase

PL586-2X for 120~125MHz
Low Close In Phase Noise
January 2012
PhaseLink Corporation Proprietary & Confidential
PhaseLink Corporation Proprietary & Confidential
PL586-2X Optimized for 122.88MHz
♦ Main Optimization Target is Phase Noise for narrow 120MHz to 125MHz
Range, specifically the Close-In Phase Noise (10Hz to 100KHz Offset).
♦ True Bipolar LVPECL Output to be able to handle non-standard loads.
♦ PL586-25 Outputs enabled when OE pin is high (on chip pull-up).
♦ PL586-28 Outputs enabled when OE pin is low (on chip pull-down).
♦ On Chip Varactors Only need Crystal + IC. This allows for assembly
in smaller Ceramic Packages like 5x3.2mm and 3.2x2.5mm.
PhaseLink Corporation Proprietary & Confidential
2/10/2012
2
Phase Noise
At VC=1.65V:
Control Voltage
Offset
0V
1.65V
3.3V
10Hz
-79dBc
-69dBc
-69dBc
100Hz
-110dBc
-97dBc
-98dBc
1KHz
-134dBc
-124dBc
-125dBc
10KHz
-147dBc
-144dBc
-146dBc
100KHz
-153dBc
-154dBc
-154dBc
1MHz
-155dBc
-156dBc
-157dBc
10MHz
-156dBc
-157dBc
-158dBc
40MHz
-156dBc
-157dBc
-158dBc
* Phase Noise Levels depend somewhat upon Crystal Properties.
Crystal parameters for this measurement: C1=6.6fF, C0=1.6pF, Rr=5.0Ω
PhaseLink Corporation Proprietary & Confidential
2/10/2012
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Frequency Pulling
120MHz Crystal:
C1=6.6fF, C0=1.7pF
PL586-25 at 120Mhz
120
100
VC=0.0~3.3V:
-109 / +118 ppm
Linearity = 4.0%
80
60
dF (ppm)
40
20
VC=0.3~3.0V:
-100 / +102 ppm
Linearity = 2.3%
0
-20
-40
-60
-80
-100
-120
0.0
0.3
0.6
0.9
1.2
1.5
1.8
2.1
2.4
2.7
3.0
3.3
VC (V)
PhaseLink Corporation Proprietary & Confidential
2/10/2012
4
Negative Resistance Graph
Crystal C0=2.0pF
0
-20
Vc=0V
Vc=1.65V
-40
Vc=3.30V
Rneg, Ohms
-60
-80
-100
-120
-140
-160
-180
-200
100
105
110
115
120
125
130
135
140
145
150
F, MHz
PhaseLink Corporation Proprietary & Confidential
2/10/2012
5
LVPECL Differential Waveform
VOH Min.
VOL Max.
PhaseLink Corporation Proprietary & Confidential
2/10/2012
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Assembly in 5x3.2mm Ceramic Package
Package Part Number:
KD-VA4F51A
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2/10/2012
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Assembly in 7x5mm Ceramic Package
Package Part Number:
KD-VA1E68C
PhaseLink Corporation Proprietary & Confidential
2/10/2012
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Thank You!
PhaseLink Corporation Proprietary & Confidential
2/10/2012
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