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TQ9303

Fibre Channel Encoder/Decoder

TriQuint Semiconductor 

TQ9303

Table 13. AC Characteristics—Receive (CRX) Timing (1)

Parameter

T19

T20

T21

T22

T23

Description

CRXCLK Pulse Width High

CRXCLK Pulse Width Low

CRXCLK Period

CRXD*, CRXP*, and CRXS*–to–CRXCLK↑

setup time

CRXCLK↑–to–CRXD*, CRXP*,

and CRXS* hold time

Notes: 1. “t” represents one (1) BRXCLK period.

2. See Table 14, “Receive (CRX) Timing Formulas,” below.

Abs.Min. Rel.Min. Abs.Max. Rel.Max. Unit

13

2t – 3

19

2t + 3

ns

13

2t – 3

19

2t + 3

ns

32

4t

4t

ns

(2)

(2)

(2)

(2)

(2)

(2)

(2)

(2)

Figure 10. Receive (CRX) Timing

CRXCLK

T19

T20

T21

CRXD(0..31),

CRXP(0..3),

RXERROR,

WRDSYNCN

T22

T23

Table 14. Receive (CRX) Timing Formulas

Parameter

RXCKPH(1:0)

0:0

0:1

1:0

1:1

0:0

0:1

1:0

1:1

Formula

0.054t␣ –␣ 0.94␣ ns

1.054t␣ –␣ 0.94␣ ns

2.054t␣ –␣ 0.94␣ ns

3.054t␣ –␣ 0.94␣ ns

3.5t␣ –␣ 0.07␣ ns

2.5t␣ –␣ 0.07␣ ns

1.5t␣ –␣ 0.07␣ ns

0.5t␣ –␣ 0.07␣ ns

t␣ =␣ 8␣ ns

(125␣ MHz)

–0.47␣ ns

7.53␣ ns

15.53␣ ns

23.53␣ ns

28.07␣ ns

20.07␣ ns

12.07␣ ns

4.07␣ ns

t␣ =␣ 9.41␣ ns

(106.25␣ MHz)

–0.39␣ ns

9.02␣ ns

18.43␣ ns

27.84␣ ns

33.01␣ ns

23.59␣ ns

14.18␣ ns

4.77␣ ns

t␣ =␣ 16␣ ns

(62.5␣ MHz)

0.00␣ ns

16.00␣ ns

32.00␣ ns

48.00␣ ns

56.07␣ ns

40.07␣ ns

24.07␣ ns

8.07␣ ns

t␣ =␣ 18.821␣ ns

(53.125␣ MHz)

0.16␣ ns

18.99␣ ns

37.81␣ ns

56.63␣ ns

65.95␣ ns

47.12␣ ns

28.30␣ ns

9.48␣ ns

For additional information and latest specifications, see our website: www.triquint.com

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