ACS8526LC Semtech Corporation, ACS8526LC Datasheet - Page 24

• Manufacturer Part Number: ACS8526LC
• Description: Line Card Protection Switch for PDH, Sonet or SDH Systems
• Manufacturer: Semtech Corporation

Table 11 APLL1 Frequencies
Table 12 APLL2 Frequencies
Note...If using Synthesis for inputs to both APLL1 and APLL2, then they must both use the same synthesis settings.
Revision 4.01/June 2006 © Semtech Corp.
ADVANCED COMMUNICATIONS
311.04
311.04 MHz
98.304 MHz
131.072 MHz
148.224 MHz
98.816 MHz
-
-
311.04 MHz
311.04 MHz
98.304 MHz
131.072 MHz
148.224 MHz
98.816 MHz
274.944 MHz
178.944 MHz
98.304 MHz
131.072 MHz
148.224 MHz
98.816 MHz
Frequency
APLL2
APLL1 Frequency
DPLL2-Squelch
ed
DPLL2-Normal
DPLL2-12E1
DPLL2-16E1
DPLL2-24DS1
DPLL2-16DS1
DPLL2-E3
DPLL2-DS3
DPLL1-12E1
DPLL1-16E1
DPLL1-24DS1
DPLL1-16DS1
DPLL Mode
DPLL2 Forward DFS
Frequency (MHz)
77.76
77.76
24.576
32.768
37.056 (2*18.528)
24.704
68.736 (2*34.368)
44.736
Normal (digital feedback)
Normal (analog feedback)
12E1 (digital feedback)
16E1 (digital feedback)
24DS1 (digital feedback)
16DS1 (digital feedback)
Do not use
Do not use
Synthesis/MUX setting for APLL1
-
-
-
-
input
DPLL2 Freq Control
Reg. 64 Bits [2:0]
Register Bits
FINAL
Page 24
000
001
010
011
100
101
110
111
XXX
XXX
XXX
XXX
DPLL1 Frequency Control
Reg. 65 Bits[2:0]
0 (DPLL2 selected)
0 (DPLL2 selected)
0 (DPLL2 selected)
0 (DPLL2 selected)
0 (DPLL2 selected)
0 (DPLL2 selected)
0 (DPLL2 selected)
0 (DPLL2 selected)
1 (DPLL1 selected)
1 (DPLL1 selected)
1 (DPLL1 selected)
1 (DPLL1 selected)
APLL2 Input from
Reg. 65 Bit 6
000
001
010
011
100
101
110
111
DPLL1 or 2.
ACS8526 LC/P LITE
DPLL1 + Synthesis
Reg. 65 Bits [5:4]
Freq to APLL2
Register Bits
01
10
11
XX
XX
XX
XX
XX
XX
XX
XX
00
Output Jitter Level
ns (p-p)
<0.5
<0.5
DATASHEET
www.semtech.com
<2
<2
<2
<2
-
-
Output
Jitter Level
<0.5
<0.5
<0.5
<0.5
<0.5
<0.5
<0.5
<2
<2
<2
<0.5
<2
ns (p-p)