lmk04000b National Semiconductor Corporation, lmk04000b Datasheet - Page 12

• Manufacturer Part Number: lmk04000b
• Description: Low-noise Clock Jitter Cleaner With Cascaded Plls
• Manufacturer: National Semiconductor Corporation

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I
I
CPout
CPout2
I
I
CPout2
CPout2
I
I
PN10kHz
CPout
Symbol
CPout2
PN1Hz
P
f
ESR
SOURCE
XTAL
C
f
XTAL
%TEMP
PD
SINK
IN
%MIS
V
TRI
TUNE
PLL 1/f Noise at 10 kHz offset
PLL2 Charge Pump Source
Magnitude of Charge Pump
Phase Detector Frequency
Charge Pump Sink/Source
Crystal Frequency Range
Crystal Power Dissipation
Current vs. Charge Pump
Charge Pump Current vs.
1 GHz Output Frequency
PLL2 Charge Pump Sink
Normalized Phase Noise
(Note 16). Normalized to
Crystal Effective Series
Charge Pump Leakage
LMK040xx OSCin port
Temperature Variation
Contribution (Note 17)
Input Capacitance of
Current (Note 12)
Current (Note 12)
Voltage Variation
PLL2 Phase Detector and Charge Pump Specifications
Parameter
Resistance
(Note 15)
Mismatch
Crystal Oscillator Mode Specifications
Vectron VXB1 crystal, 12.288
0.5 V < V
0.5 V < V
PLL2_CP_GAIN = 3200 µA
PLL2_CP_GAIN = 3200 µA
PLL2_CP_GAIN = 400 µA
PLL2_CP_GAIN = 400 µA
V
6 MHz < F
PLL2_CP_GAIN = 00b
PLL2_CP_GAIN = 01b
PLL2_CP_GAIN = 10b
PLL2_CP_GAIN = 11b
PLL2_CP_GAIN = 00b
PLL2_CP_GAIN = 01b
PLL2_CP_GAIN = 10b
PLL2_CP_GAIN = 11b
CPout2
12
MHz, R
V
V
V
V
V
V
V
V
-40 to +85 °C
=V
Conditions
CPout2
CPout2
CPout2
CPout2
CPout2
CPout2
CPout2
CPout2
T
CPout2
CPout2
A
CC
= 25 °C
XTAL
ESR
/2, T
=V
=V
=V
=V
=V
=V
=V
=V
< V
< V
< 40 Ω
CC
CC
CC
CC
CC
CC
CC
CC
< 20 MHz
A
CC
CC
/2,
/2,
/2,
/2,
/2,
/2,
/2,
/2,
= 25 °C
- 0.5 V
- 0.5 V
Min
6
-1600
-3200
1600
3200
-100
-400
-117
-122
-219
-224
Typ
200
100
400
6
3
4
4
Max
100
100
20
10
10
dBc/Hz
dBc/Hz
Ohms
Units
MHz
MHz
µW
µA
µA
nA
pF
%
%
%