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Data Sheet
ADN2812
Rev. E | Page 3 of 28
SPECIFICATIONS
TA = TMIN to TMAX, VCC = VMIN to VMAX, VEE = 0 V, CF = 0.47 F, SLICEP = SLICEN = VEE, input data pattern: PRBS 223 1,
unless otherwise noted.
Table 1.
Parameter
Conditions
Min
Typ
Max
Unit
QUANTIZER—DC CHARACTERISTICS
Input Voltage Range
@ PIN or NIN, dc-coupled
1.8
2.8
V
Peak-to-Peak Differential Input
PIN – NIN
2.0
V
Input Common-Mode Level
2.3
2.5
2.8
V
Differential Input Sensitivity
223 1 PRBS, ac-coupled,1 BER = 1 × 10–10 10
6
mV p-p
Input Overdrive
5
3
mV p-p
Input Offset
500
V
Input RMS Noise
BER = 1 x 10–10
290
V rms
QUANTIZER—AC CHARACTERISTICS
Data Rate
12.3
2700
Mb/s
S11
@ 2.5 GHz
15
dB
Input Resistance
Differential
100
Input Capacitance
0.65
pF
QUANTIZER—SLICE ADJUSTMENT
Gain
SLICEP – SLICEN = ±0.5 V
0.08
0.1
0.125
V/V
Differential Control Voltage Input
SLICEP – SLICEN
0.95
+0.95
V
Control Voltage Range
DC level @ SLICEP or SLICEN
VEE
0.95
V
Slice Threshold Offset
1
mV
LOSS OF SIGNAL DETECT (LOS)
Loss of Signal Detect Range
11
13
17
mV
RThresh = 100 k
1.5
3
4.0
mV
Hysteresis (Electrical)
OC-48
RThresh = 0
5.6
6
7.2
dB
RThresh = 100 k
3.7
6
8.4
dB
OC-1
RThresh = 0
5.6
6
7.2
dB
RThresh = 10 k
2.0
4
6.7
dB
LOS Assert Time
500
ns
LOS Deassert Time
450
ns
LOSS OF LOCK DETECT (LOL)
VCO Frequency Error for LOL Assert
With respect to nominal
1000
ppm
VCO Frequency Error for LOL Deassert
With respect to nominal
250
ppm
LOL Response Time
12.3 Mb/s
4
ms
OC-12
1.0
s
OC-48
1.0
s
ACQUISITION TIME
Lock to Data Mode
OC-48
1.3
ms
OC-12
2.0
ms
OC-3
3.4
ms
OC-1
9.8
ms
12.3 Mb/s
40.0
ms
Optional Lock to REFCLK Mode
10.0
ms