LOW SKEW 1 TO 4 CLOCK BUFFER

6

REVISION A 03/18/15

553S DATASHEET

Phase Noise Plots

The phase noise plots above show the low Additive Jitter of the 553S high-performance buffer. With an integration range of

12kHz to 20MHz, the reference input has about 66fs of RMS phase jitter while the output of 553S has about 76fs of RMS phase

jitter. This results in a low Additive Phase Jitter of only 37fs.

Test Load and Circuit

Figure 1. 553S Reference Phase Noise 66fs

(12kHz to 20MHz)

Figure 2. 553S Output Phase Noise 76fs

(12kHz to 20MHz)

Rs=33ohm

5 inches

CL = 5pF

50ohms