STC5425 Datasheet, PDF (34/48 Pages) Connor-Winfield Corporation – Line Card Clock

Bits 3 ~ 2
0
1
2
3
Short Term
History -3dB
Bandwidth
1.3 Hz
0.64 Hz
0.32 Hz
0.16 Hz
STC5425
Line Card Clock
Data sheet
Default value: 4 (0.64Hz)
Ref_Priority_Table, 0x36 (R/W)
Address
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
0x36
0x37
0x38
Ref 2 Priority
Ref 4 Priority
Not used
Ref 1 Priority
Ref 3 Priority
Ref 5 Priority
Reference selection priority for REF1 to REF5. Lower values have higher priority:
Default value: 0
PLL_Status, 0x3C (R)
Bits 7~4/Bits 3~0
0
1 ~ 15
Reference Priority
Revoke from auto reference elector
Value 1 ~ 15
Address
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
0x3C
HHA
DHT
FEE
SAP
OOP
LOL
LOS
SYNC
SYNC Indicates whether synchronization has been achieved
0 = Not synchronized
1 = Synchronized
LOS
Loss of signal of the selected reference
0 = No Loss
1 = Loss (Indicate loss of signal, freerun, and holdover)
LOL
Loss of lock (Failure to achieve or maintain lock)
0 = No loss of lock
1 = Loss of lock (Indicate loss of lock, freerun, and holdover)
OOP
Out of pull-in range. Indicate the frequency offset of the selected reference input is out of pull-in range.
1 = Out of pull-in range
0 = In range
SAP Indicates whether the clock output have stopped following the selected reference, caused by out of
Preliminary
Page 34 of 48 TM113
Rev:P1.3
© Copyright the Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice
Date: September 20, 2011