ADN2817 datasheet(6/35 Pages) AD

6 / 35 page

ADN2817/ADN2818

Preliminary Technical Data

Rev. PrA | Page 6 of 35

BIT ERROR RATE MONITOR (BERMON) SPECIFICATIONS

TA = TMIN to TMAX, VCC = VMIN to VMAX, VEE = 0 V, CF = 0.47 uF, SLICEP = SLICEN = VEE, Input Data Pattern: PRBS 223 − 1,

unless otherwise noted.

Table 4.

Parameter

Conditions

Min

Typ

Max

Unit

BERMON Primary Mode

I2C Controlled Eye Profiling

BER Accuracy

Input BER Range 1e-3 to 1e-12, Input

DJ<0.4UI, DJ Ceiling>1e-2.

Asymmetry <0.1UI. Requires external

data processing algorithms to

implement Q factor extrapolation.

+/-1

Decades

Numbits

Number of data bits to collect

pseudo-errors. User programmable in

increment factors of 23 over the range

218 to 239.

218

239

Measurement Time

Numbits/Datarate

Sample Phase Adjust Resolution

degrees

BER Range

5e-2

BER

Power Increase

BER On

177

BER Standby

BERMON Secondary Mode

Analog Voltage Output

BER Accuracy

Input BER Range 1e-3 to 1e-9, Input

DJ=0 UI, DJ Ceiling>1e-2. Asymmetry

=0 UI. BER is read as a voltage on pin

VBER, when Automode = 0.

+/-1

Decades

BER Accuracy

Input BER Range 1e-3 to 1e-9, Input

DJ=0.2 UI, DJ Ceiling>1e-2.

Asymmetry =0 UI. BER is read as a

voltage on pin VBER, when Automode

= 0.

+1/-2

Decades

Numbits

Number of data bits to collect

pseudo-errors.

227

Measurement Time

2.5Gb/s

0.054

1Gb/s

0.134

155Mb/s

0.865

10Mb/s

1.34

Sample Phase Adjust Resolution

degrees

VBER

see Figure xx

0.1

0.9

Power Increase

BER Automode

177

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