ADN2817(RevG) データシートの表示（PDF） - Analog Devices
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ADN2817 Datasheet PDF : 38 Pages
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ADN2817/ADN2818
Data Sheet
BIT ERROR RATE MONITOR SPECIFICATIONS
TA = TMIN to TMAX, VCC = VMIN to VMAX, VEE = 0 V, CF = 0.47 µF, SLICEP = SLICEN = VEE, input data pattern: PRBS 223 − 1,
unless otherwise noted.
Table 4.
Parameter
BERMON Extrapolation Mode
Final Computed BER Accuracy
Number of Bits (NUMBITS)
Pseudo BER (PBER) Measurement
Time
BER Range
Sample Phase Adjust Resolution
Sample Phase Adjust Accuracy
Sample Phase Adjust Range
Minimum Input Signal Level
Power Increase
BERMON Voltage Output Mode
BER Accuracy
NUMBITS
Measurement Time
VBER Voltage Range
Minimum Input Signal Level
Power Increase
Sample Phase Adjust Mode
Sample Phase Adjust Step Size
Sample Phase Adjust Accuracy
Sample Phase Adjust Range
Power Increase
Test Conditions/Comments
I2C-controlled eye profiling
Input BER range 1 × 10−3 to 1 × 10−12,
input deterministic jitter (DJ) < 0.4 UI,
DJ ceiling > 1 × 10−2; asymmetry < 0.1 UI;
requires external data processing algorithms
to implement Q factor extrapolation
Number of data bits to collect pseudo errors;
user programmable in increment factors of
23 over the range 218 to 239
With respect to normal sampling instant
Differential peak to peak
BER enabled
BER standby
Analog voltage output
Input BER range 1 × 10−3 to 1 × 10−9,
input DJ = 0 UI, DJ ceiling > 1 × 10−2;
asymmetry = 0 UI; BER is read as a voltage on
the VBER pin, when the BER mode pin = VEE
Input BER range 1 × 10−3 to 1 × 10−9,
input DJ = 0.2 UI, DJ ceiling > 1 × 10−2;
asymmetry = 0 UI; BER is read as a voltage on
the VBER pin, when the BER mode pin = VEE
Number of data bits to collect pseudo errors
2.5 Gbps
1 Gbps
155 Mbps
10 Mbps
Via 3 kΩ resistor to VEE
Differential peak to peak
BER voltage mode
Monotonic
With respect to normal sampling instant
Min Typ
Max
±1
218
239
NUMBITS/
data rate
5 × 10−2
6
<6
−0.5
+0.5
4
160
77
±1
+1/−2
227
0.054
0.134
0.865
1.34
0.1
0.9
4
160
6
<6
−0.5
+0.5
160
Unit
Decades
UI
sec
BER
Degrees
Degrees
UI
mV
mW
mW
Decades
Decades
UI
sec
sec
sec
sec
V
mV
mW
Degrees
Degrees
UI
mW
Rev. G | Page 8 of 38
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