Datasheet

Data Sheet ADN2805
Rev. B | Page 3 of 16
SPECIFICATIONS
T
A
= T
MIN
to T
MAX
, VCC = V
MIN
to V
MAX
, VEE = 0 V, C
F
= 0.47 μF, SLICEP = SLICEN = VEE, input data pattern: PRBS 2
23
− 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 0.2 2.0 V
Input Common-Mode Level DC-coupled 2.3 2.5 2.8 V
QUANTIZER—AC CHARACTERISTICS
Data Rate 1250 Mbps
S11 @ 2.5 GHz −15 dB
Input Resistance Differential 100 Ω
Input Capacitance 0.65 pF
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 200 μs
ACQUISITION TIME
Lock-to-Data Mode GbE 1.5 ms
Optional Lock to REFCLK Mode 20.0 ms
DATA RATE READBACK ACCURACY
Fine Readback In addition to REFCLK accuracy 100 ppm
POWER SUPPLY
Power Supply Voltage 3.0 3.3 3.6 V
Power Supply Current Locked to 1.25 Gbps 118 131 mA
OPERATING TEMPERATURE RANGE −40 +85 °C
JITTER SPECIFICATIONS
T
A
= T
MIN
to T
MAX
, VCC = V
MIN
to V
MAX
, VEE = 0 V, C
F
= 0.47 μF, SLICEP = SLICEN = VEE, input data pattern: PRBS 2
23
− 1,
unless otherwise noted.
Table 2.
Parameter Conditions Min Typ Max Unit
PHASE-LOCKED LOOP CHARACTERISTICS
Jitter Peaking 0 0.03 dB
Jitter Generation 0.001 0.003 UI rms
0.02 0.04 UI p-p
Jitter Tolerance GbE, IEEE 802.3, 637 kHz 0.749 UI p-p