Seagate 15K.3 ST373453FC Model Product Manual PDF - Page 73
Cheetah 15K.3 FC Product Manual, Rev. D, Differential PECL output, Differential PECL input
UPC - 000004165019
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Cheetah 15K.3 FC Product Manual, Rev. D 63 9.6.3 Differential PECL output The serial PECL output signal voltage characteristics are provided in Table 28. The outputs are not AC coupled in order to deliver maximum signal without rise and fall time degradation. You must AC couple the receiver to isolate potentially different DC characteristics of the outputs and the receiver. Table 28: Differential PECL output characteristics Description Serial output voltage swing Parameter 600 < Vout < 1300 mV Notes Centered at 1.32V Figure 22 provides the data output valid eye diagram relative to the bit cell time. 941 ps Vout (mv) 800 ps Figure 22. Transmit eye diagram 9.6.4 Differential PECL input The serial PECL input signal voltage characteristics are provided in Table 29. Table 29: Differential PECL input characteristics Description Serial input voltage swing Parameter 200 < Vin < 1.300 mV Notes AC coupled Figure 23 provides the data valid eye diagram for typical and minimum requirements to recover data at the specified interface error rate. The inputs are AC coupled on the drive. 941 ps Vin (mv) Figure 23. Receive eye diagram 659 ps 376 ps Typical Minimum