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ADN2804 Datasheet(PDF) 3 Page - Analog Devices

Part No. ADN2804
Description  622 Mbps Clock and Data Recovery IC with Integrated Limiting Amplifier
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADN2804 Datasheet(HTML) 3 Page - Analog Devices

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ADN2804
Rev. 0 | Page 3 of 24
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 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
DC-coupled (see Figure 27, Figure 28, and Figure 29)
2.3
2.5
2.8
V
Differential Input Sensitivity
223 − 1 PRBS, ac-coupled,1 BER = 1 × 10–10
6
3.3
mV p-p
Input Offset
500
μV
Input RMS Noise
BER = 1 × 10–10
290
μV rms
QUANTIZER—AC CHARACTERISTICS
Data Rate
622
Mbps
Output Clock Range
Absence of input data
622 ± 5%
MHz
S11
@ 622 MHz
−15
dB
Input Resistance
Differential
100
Ω
Input Capacitance
0.65
pF
QUANTIZER—SLICE ADJUSTMENT
Gain
SLICEP − SLICEN = ±0.5 V
0.10
0.11
0.13
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 (LOS) DETECT
Loss-of-Signal Detect Range (see Figure 6)
RTHRESH = 0 Ω
14.9
16.7
18.4
mV
RTHRESH = 100 kΩ
2.6
3.5
4.4
mV
Hysteresis (Electrical)
OC-12
RTHRESH = 0 Ω
6.2
6.9
7.7
dB
RTHRESH = 100 kΩ
4.1
6.1
8.1
dB
LOS Assert Time
DC-coupled2
500
ns
LOS Deassert Time
DC-coupled2
400
ns
LOSS-OF-LOCK (LOL) DETECT
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
OC-12
200
μs
ACQUISITION TIME
Lock to Data Mode
OC-12
2.0
ms
Optional Lock to REFCLK Mode
20.0
ms
DATA RATE READBACK ACCURACY
Fine Readback
In addition to REFCLK accuracy
OC-12
100
ppm
POWER SUPPLY VOLTAGE
3.0
3.3
3.6
V
POWER SUPPLY CURRENT
Locked to 622.08 Mbps
128
mA
OPERATING TEMPERATURE RANGE
–40
+85
°C
1 PIN and NIN should be differentially driven and ac-coupled for optimum sensitivity.
2 When ac-coupled, the LOS assert and deassert times are dominated by the RC time constant of the ac coupling capacitor and the 50 Ω input termination of the
ADN2804 input stage.


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