P5021 datasheet(122/155 Pages) NXP

122 / 155 page

P5021 QorIQ Integrated Processor Data Sheet, Rev. 1

Electrical characteristics

Freescale Semiconductor

122

This figure shows the reference clock timing waveform.

Figure 45. Reference clock timing waveform

2.20.7.3

AC transmitter Output Characteristics

This table provides the differential transmitter output AC characteristics for the SATA interface at Gen1i or 1.5 Gbits/s

transmission. The AC timing specifications do not include RefClk jitter.

This table provides the differential transmitter output AC characteristics for the SATA interface at Gen2i or 3.0 Gbits/s

transmission. The AC timing specifications do not include RefClk jitter.

Table 84. Gen1i/1.5 G transmitter AC specifications

For recommended operating conditions, see Table 3.

Parameter

Symbol

Min

Typ

Max

Units

Notes

Channel speed

tCH_SPEED

—1.5

—

Gbps

—

Unit Interval

TUI

666.4333

666.6667

670.2333

—

Total jitter data-data 5 UI

USATA_TXTJ5UI

—

0.355

UI p-p

Total jitter, data-data 250 UI

USATA_TXTJ250UI

—

0.47

UI p-p

Deterministic jitter, data-data 5 UI

USATA_TXDJ5UI

—

0.175

UI p-p

Deterministic jitter, data-data 250 UI

USATA_TXDJ250UI

—

0.22

UI p-p

Note:

1. Measured at transmitter output pins peak to peak phase variation, random data pattern

Table 85. Gen 2i/3 G transmitter AC specifications

For recommended operating conditions, see Table 3.

Parameter

Symbol

Min

Typ

Max

Units

Notes

Channel speed

tCH_SPEED

—3.0

—

Gbps

—

Unit Interval

TUI

333.2167

333.3333

335.1167

—

Total jitter fC3dB =fBAUD ÷ 10

USATA_TXTJfB/10

——

0.3

UI p-p

Total jitter fC3dB =fBAUD ÷ 500

USATA_TXTJfB/500

—

0.37

UI p-p

Total jitter fC3dB =fBAUD ÷ 1667

USATA_TXTJfB/1667

—

0.55

UI p-p

Ref_CLK

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