Seagate ST300MM0026 Savvio 10K.2 SAS Product Manual - Page 63
additional sinusoidal jitter
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The leading and trailing edge slopes of figure 15 shall be preserved. As a result the amplitude value of Z1 is less than that given in table 28 and Z1TOL and Z1OP shall be defined from those slopes by the following equa- tion: Z1TOL = Z 1OP x -X-----2---O----P 0---,----5---)---x---a---d----d---i-t--i-o----n---a---l---s---i--n---u---s---o----i-d---a----l---j-i-t--t--e---r X-----1---O----PX 2OP - X 1OP where: Z1TOL is the value for Z1 to be used for the tolerance masks; and Z1OP, X1OP, and X2OP are the values in table 28 for Z1, X1, and X2. The X1 points in the receive tolerance masks are greater than the X1 points in the receive masks, due to the addition of sinusoidal jitter. Figure 17 defines the sinusoidal jitter mask. Figure 17. Sinusoidal jitter mask Savvio 10K.2 SAS Product Manual, Rev. E 57