LMK03000CISQ/NOPB National Semiconductor, LMK03000CISQ/NOPB Datasheet - Page 27

• Manufacturer Part Number: LMK03000CISQ/NOPB
• Description: IC CLOCK CONDITIONER PREC 48-LLP
• Manufacturer: National Semiconductor
• Type: Clock Conditionerr

Specifications of LMK03000CISQ/NOPB

• Pll: Yes
• Input: Clock
• Output: LVDS, LVPECL
• Number Of Circuits: 1
• Ratio - Input:output: 1:8
• Differential - Input:output: Yes/Yes
• Frequency - Max: 1.296GHz
• Divider/multiplier: Yes/No
• Voltage - Supply: 3.15 V ~ 3.45 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 48-LLP
• Frequency-max: 1.296GHz
• For Use With: LMK03000CEVAL - BOARD EVALUATION LMK03000C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LMK03000CISQ; LMK03000CISQTR

3.8 OSCin INPUT
In addition to LVDS and LVPECL inputs, OSCin can also be
driven with a sine wave. The OSCin input can be driven sin-
gle-ended or differentially with sine waves. The configurations
for these are shown in
shows the recommended power level for sine wave operation
for both differential and single-ended sources over frequency.
The part will operate at power levels below the recommended
power level, but as power decreases the PLL noise perfor-
mance will degrade. The VCO noise performance will remain
constant. At the recommended power level the PLL phase
noise degradation from full power operation (8 dBm) is less
than 2 dB.
3.9 MORE THAN EIGHT OUTPUTS WITH AN LMK03000
FAMILY DEVICE
The LMK03000 family devices include eight or less outputs.
When more than 8 outputs are required the footprint compat-
ible LMK01000 family may be used for clock distribution. By
FIGURE 14. Single-Ended Sine Wave Input
FIGURE 16. Recommended OSCin Power for Operation with a Sine Wave Input
Figure 14
and
Figure
15.
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Figure 16
27
using an LMK03000 device with eight LMK01000 family de-
vices up to 64 clocks may be distributed in many different
LVDS / LVPECL combinations. It's possible to distribute more
than 64 clocks by adding more LMK01000 family devices.
Refer to AN-1864 for more details on how to do this.
FIGURE 15. Differential Sine Wave Input
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