ISL37231

6

FN8266.1

January 25, 2013

PARAMETERS

SYMBOL

CONDITION

MIN

(Note 12)

TYP

MAX

(Note 12)

UNITS

NOTES

1.0V Supply Current

(Combination of all 1V

Supplies)

Both lanes active, after equalizer has trained

and is static, no eye monitors enabled

430

510

mA

No lanes active, but microcontroller awake

85

150

mA

Sleep Mode

4

mA

8

1.8V Supply Current

(Combination of all 1.8V

Supplies)

Both lanes active, after equalizer has trained

and is static, no eye monitors enabled

25

55

mA

No lanes active, but microcontroller awake

9

20

mA

Sleep Mode

330

µA

8

Return Loss Limit

(Differential)

0.05GHz to 2GHz

-10

dB

9

2GHz to 5.2GHz

-6

dB

9

5.2GHz to 7GHz

-5

dB

9

Return Loss Limit (Common

Mode)

10MHz to 5GHz

-5

dB

9

Return Loss Limit (Diff. to

Com. Conversion)

10MHz to 5GHz

-20

dB

9

Input Equalization Range

EQ gain at 5GHz compared to DC. Set to

minimum gain

6

dB

10

EQ gain at 5GHz compared to DC. Set to

maximum gain

16.5

dB

10

Input Equalization

Increment

10 steps covering the Equalization range

1.5

dB

Output De-Emphasis Level

Range

Off-ramp channels optimized for PCB

dielectric loss. On-ramp channels optimized

for cable skin loss. Minimum setting

0

dB

Off-ramp channels optimized for PCB

dielectric loss. On-ramp channels optimized

for cable skin loss. Maximum setting

9

dB

De-Emphasis Increment

1dB

Number of De-Emphasis

Taps

3

11

Output Differential

Amplitude Range

Minimum drive setting

200

Maximum drive setting

950

Output Differential

Amplitude Increment

15 Uniform Steps

50

Output Transition Time

20% to 80%

45

ps

Jitter Transfer Function

Bandwidth

5

MHz

Total Output Jitter

1E-13 BER; PRBS-31; no low frequency input

periodic jitter

0.3

SSC Down Spreading

Amplitude Tolerance

0.5

%

SSC Modulation Rate

Tolerance

33-37

kHz

NOTES:

8. The specified Sleep Mode currents can only be achieved when the ISL37231 is used in conjunction with the ISL80083 power management IC.

9. Measured with a Vector Network Analyzer with 100Ω -diff impedance and the ISL37231 input/output impedance at setting 0x07 (i.e. 100Ω-diff).

10. The equalization response includes all effects starting from the IC input pins up to the output of the equalization stage.

11. Three de-emphasis taps composed of: 1 pre-cursor + main + 1 post-cursor.

12. Compliance to datasheet limits is assured by one or more methods: production test, characterization and/or design.