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GS2993 Dual Output Adaptive Cable Equalizer

Data Sheet

53966 - 4

August 2012

9 of 23

Propietary & Confidential

2.3 AC Electrical Characteristics

Sleep, GAIN_SEL, BYPASS,

OP1_EN, OP2_EN Input Low

Level Voltage

VIL

––

–

0.7

NOTES:

1. VCC_O operates from 1.2V through 3.3V (+/-5%).

2. De-emphasis off.

3. An additional 6mA when de-emphasis is enabled (dual-output mode).

4. Digital pins are 2.5V, but 3.3V tolerant.

Table 2-1: DC Electrical Characteristics (Continued)

VCC_A = 3.3V ±5%, TA = -40°C to +85°C, unless otherwise shown

Parameter

Symbol

Conditions

Min

Typ

Max

Units

Notes

Table 2-2: AC Electrical Characteristics

VCC_A = 3.3V ±5%, TA = -40°C to +85°C, unless otherwise shown

Parameter

Symbol

Conditions

Min

Typ

Max

Units

Notes

Serial input data rate

DRSDO

–

143

–

2970

Mb/s

–

Input Voltage Swing

ΔVSDI

TA =25°C, differential,

270Mb/s and 1.485Gb/s

720

800

950

mVp-p

TA =25°C, differential,

2.97Gb/s

720

800

880

mVp-p

Output Voltage Swing

ΔVSDO

100

Ω load, TA =25°C,

differential, OP_CTL set

for high swing

–

800

–

mVp-p

100

Ω load, TA =25°C,

differential, OP_CTL set

for low swing

–

400

–

mVp-p

Output Jitter of Various

Cable Lengths and Data

Rates

–

2.97Gb/s

Belden 1694A: 0-120m

SDO1 only

–

0.25

3,6

–

2.97Gb/s

Belden 1694A: 0-120m

SDO1 and SDO2 enabled

––

0.3

3,6

–

2.97Gb/s

Belden 1694A: 120-140m

–0.3

–

4,6

–

1.485Gb/s

Belden 1694A: 0-180m

–

0.25

3,6

–

1.485Gb/s

Belden 1694A: 180-220m

–0.25–

4,6

–

270Mb/s

Belden 1694A: 0-400m

––

0.2

3, 6

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