Fref0 Frequency Selection .................................................................................................................................................................10
Fref1 Frequency Selection .................................................................................................................................................................10
C2/C1.5 Output Frequency Control....................................................................................................................................................14
3
IDT82V3155 ENHANCED T1/E1/OC3 WAN PLL WITH DUAL REFERENCE INPUTS
State Control Circuit ............................................................................................................................................................................ 9
State Control Diagram......................................................................................................................................................................... 9
TIE Control Block Diagram................................................................................................................................................................ 11
Reference Switch with TIE Control Block Enabled............................................................................................................................ 12
Reference Switch with TIE Control Block Disabled........................................................................................................................... 12
Input Control Setup and Hold Timing ................................................................................................................................................ 29
4
IDT82V3155 ENHANCED T1/E1/OC3 WAN PLL WITH DUAL REFERENCE INPUTS
2.1 State Control Circuit ..................................................................................................................................................................................9
2.1.1 Normal Mode..............................................................................................................................................................................10
2.1.2 Fast Lock Mode..........................................................................................................................................................................10
2.2 Frequency Select Circuit .........................................................................................................................................................................10
2.5 Invalid Input Signal Detection ..................................................................................................................................................................11
2.6 TIE Control Block.....................................................................................................................................................................................11
2.7.5 Digital Control Oscillator (DCO)..................................................................................................................................................13
Measures of Performance ...............................................................................................................................................................................15
3.3 Jitter Transfer ..........................................................................................................................................................................................15
3.4 Frequency Accuracy................................................................................................................................................................................15
3.6 Capture Range ........................................................................................................................................................................................15
3.7 Lock Range .............................................................................................................................................................................................15
3.9 Time Interval Error (TIE)..........................................................................................................................................................................15
3.10 Maximum Time Interval Error (MTIE) ......................................................................................................................................................15
Absolute Maximum Ratings ............................................................................................................................................................................17
Recommended DC Operating Conditions .....................................................................................................................................................17
DC Electrical Characteristics ..........................................................................................................................................................................17
6.1 Single End Input/Output Port...................................................................................................................................................................17
6.2 Differential Output Port (LVDS) ...............................................................................................................................................................18
AC Electrical Characteristics .........................................................................................................................................................................19
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