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VSC7173

Data Sheet

Revision 4.1

May 23, 2005

Confidential

AC Characteristics

Specifications are guaranteed over the recommended operating conditions listed in Table 11 on page 11.

1. Refer to Application Note AN-37 for differential measurement techniques.

2. Output swings are higher than the Serial ATA 1.0 specification to compensate for anticipated PCB or connector losses.

Figure 7. Timing Waveform

Table 9. High-Speed Inputs and Outputs

Symbol

Parameter

Minimum

Maximum

Unit

Condition

Propagation delay from any high-speed input

to high-speed output

0.4

2.0

ns

Propagation delay from signal present at

input to output buffer turned on

3.0

12.0

ns

Propagation delay from no signal at input to

output buffer turned off

3.0

12.0

ns

Rise and fall times

67

260

ps

1.5 Gbps operation,

20% to 80%.

(1)

OUTx output differential peak-to-peak

voltage swing in normal swing mode

(HIVx is LOW)

500

700

mVp-p

Measured per Serial ATA 1.0

specification, section 6.6.3.

100

Ω termination between

true and complement outputs.

(1, 2)

OUTx output differential peak-to-peak

voltage swing in high swing mode

(HIVx is HIGH)

800

1300

mVp-p

Measured per Serial ATA 1.0

specification, section 6.6.3.

100

Ω termination between

true and complement outputs.

INx input differential peak-to-peak swing with

OOBSEL1 = 1 and OOBSEL0 = 0

(OOB nominal)

275

1600

mVp-p

Measured per Serial ATA 1.0

specification.

INx input differential peak-to-peak swing with

OOBSEL1 = 0 and OOBSEL0 = 1

(OOB minimal)

225

1600

mVp-p

Measured per Serial ATA 1.0

specification, section 6.6.3.

High-Speed Input

High-Speed Output