ACS8520T Semtech, ACS8520T Datasheet - Page 142

• Manufacturer Part Number: ACS8520T
• Description: Synchronous Equipment Timing Source (SETS) for Stratum 3/4E/4 and SMC Systems
• Manufacturer: Semtech

Input/Output Timing
Figure 28 Input/Output Timing with Phase Build-out Off
Revision 3.02/October 2005 © Semtech Corp.
ADVANCED COMMUNICATIONS
Input/Output
8 kHz input
8 kHz output
6.48 MHz input
6.48 MHz output
19.44 MHz input
19.44 MHz output
25.92 MHz input
25.92 MHz output
38.88 MHz input
38.88 MHz output
51.84 MHz output
77.76 MHz input
77.76 MHz output
51.84 MHz input
155.52 MHz input
155.52 MHz output
Delay
+8.2 ± 1.5 ns
+4.7 ± 1.5 ns
+4.3 ± 1.5 ns
+4.7 ± 1.5 ns
+4.6 ± 1.5 ns
+3.0 ± 1.5 ns
+5.3 ± 1.5 ns
+5.3 ± 1.5 ns
FINAL
Page 142
MFrSync (2 kHz)
FrSync (8 kHz)
8 kHz
2 kHz
DS1 (1.544 MHz)
E1 (2.048 MHz)
DS3 (44.736 MHz)
E3 (34.368 MHz)
6.48 MHz
19.44 MHz
25.92 MHz
38.88 MHz
51.84 MHz
77.76 MHz
155.52 MHz
311.04 MHz
Output
Min/Max Phase Alignment
(FrSync Alignment switched on)
-3.75 ± 1.25 ns
-3.75 ± 1.25 ns
-3.75 ± 1.25 ns
-3.75 ± 1.25 ns
-3.75 ± 1.25 ns
-3.75 ± 1.25 ns
-3.75 ± 1.25 ns
-3.75 ± 1.25 ns
-3.75 ± 1.25 ns
-1.2 ± 0.5 ns
-0.4 ± 0.5 ns
-0.0 ± 0.5 ns
-1.2 ± 1.25 ns
-1.2 ± 1.25 ns
-3.75 ± 1.25 ns
ACS8520 SETS
F8525D_021IP_OPTiming_02
DATASHEET
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