Texas Instruments Clock Jitter Cleaner With Dual Cascaded PLLs and Integrated 2.9 GHz VCO LMK04808BEVAL/NOPB LMK04808BEVAL/NOPB Datenbogen
Produktcode
LMK04808BEVAL/NOPB
L M K 0 4 8 X X E V A L U A T I O N B O A R D O P E R A T I N G I N S T R U C T I O N S
40
Clock Outputs (CLKout)
The LMK04800 Family features programmable LVDS, LVPECL, and LVCMOS buffer modes
for the CLKoutX and OSCout0 output pairs. The OSCout1 output pair has a LVPECL buffer.
Included below are various phase noise measurements for each output format.
for the CLKoutX and OSCout0 output pairs. The OSCout1 output pair has a LVPECL buffer.
Included below are various phase noise measurements for each output format.
LMK04808B CLKout Phase Noise
Figure 16: LMK04808B CLKout Phase Noise
Table 14: LMK04808B Phase Noise (dBc/Hz) Phase Noise and RMS Jitter (fs)
Offset
1474.56 MHz
LVDS
1474.56 MHz
LVPECL
491.52 MHz
LVDS
491.52 MHz
LVPECL
100 Hz
-88.2
-87.8
-97.7
-99.7
1 kHz
-109.8
-108.9
-118.9
-119.3
10 kHz
-118.0
-117.4
-127.3
-127.4
100 kHz
-119.8
-119.7
-129.1
-129.4
800 kHz
-130.9
-130.8
-140.1
-140.3
1 MHz
-132.7
-132.6
-141.7
-142.1
10 MHz
-148.2
-149.2
-152.7
-154.9
20 MHz
-148.9
-150.1
-153.2
-155.3
RMS Jitter (fs)
10 kHz to 20 MHz
99.3
99.4
109.1
103.3
RMS Jitter (fs)
100 Hz to 20 MHz
111.4
113.5
121.3
116.1