SI5023 Datasheet, PDF (4/28 Pages) Silicon Laboratories – MULTI-RATE SONET/SDH CDR IC WITH LIMITING AMPLIFIER

Si5023
1. Detailed Block Diagram
LOS_LVL
DIN+
DIN+
SLICE_LVL
REFCLK±
(optional)
REXT
LOS
Signal
Detect
Limiting
Amp
Slicing
Control
Bias
Generation
BER_LVL _{BER_ALM BERMON LTR}
BER
Monitor
RATESEL[0:1]
DSQLCH
Retime
DOUT+
DOUT–
Phase
Detector
A/D
DSP
n
VCO
CLK
Dividers
CLKOUT+
CLKOUT–
CLKDSBL
Lock
Detection
Calibration
LOL
RESET/CAL
4
Rev. 1.25