LMK04816_14 Datasheet, PDF (41/77 Pages) Texas Instruments – Low-Noise Clock Jitter Cleaner with Dual Loop PLLs

LMK04816 EVALUATION BOARD OPERATING INSTRUCTIONS
For the LMK04816B, the internal VCO frequency is 2457.60 MHz. The divide-by-10 CLKout
frequency is 245.76 MHz, and the divide-by-20 CLKout frequency is 122.88 MHz.
Table 15: LMK04816B Phase Noise and RMS Jitter for Different CLKout Output Formats and Frequencies
Offset
245.76
LVDS
245.76
245.76
LVCMOS LVPECL
122.88
LVDS
122.88
122.88
LVCMOS LVPECL
100 Hz -105.8
-104.5
-106.5
-108.6
-113.0
-111.4
1 kHz -124.7
-124.9
-125.4
-130.2
-132.1
-131.0
10 kHz -134.8
-134.4
-134.9
-140.7
-140.7
-141.0
100 kHz -135.5
-135.4
-135.8
-141.7
-141.7
-141.9
800 kHz -147.8
-147.7
-148.0
-152.6
-153.5
-154.1
1 MHz -149.6
-149.4
-149.7
-153.3
-155.2
-155.5
10 MHz -156.1
-158.1
-158.4
-158.4
-161.5
-161.1
20 MHz -156.3
-158.2
-158.9
-159.5
-161.6
-161.3
RMS Jitter (fs)
10 kHz to 20 MHz
106.9
101.5
96.4
134.2
109.7
108.2
RMS Jitter (fs)
100 Hz to 20 MHz
116.8
112.4
106.4
143.2
118.9
117.9
LMK04816B OSCout Phase Noise
-80
-90
-100
-110
-120
-130
122.88 MHz LVCMOS
OSCin through CLKout
122.88 MHz OSCout0
LVPECL16
-140
-150
-160
-170
100
1,000
10,000
100,000
Title
1,000,000 10,000,000
Figure 17: LMK04816B OSCout Phase Noise
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SNLU107