ACS8526LC Semtech Corporation, ACS8526LC Datasheet - Page 19
ACS8526LC
Manufacturer Part Number
ACS8526LC
Description
Line Card Protection Switch for PDH, Sonet or SDH Systems
Manufacturer
Semtech Corporation
Datasheet
1.ACS8526LC.pdf
(74 pages)
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Table 8 Output Reference Source Selection Table
Note...1.544 MHz/2.048 MHz are shown for SONET/SDH respectively. Pin SONSDHB controls default. When High, SONET is default.
Table 9 Output Frequency Selection
Revision 4.01/June 2006 © Semtech Corp.
ADVANCED COMMUNICATIONS
Output
O1
Output
O2
FrSync
MFrSync
Frequency (MHz, unless stated otherwise)
2 kHz
2 kHz
8 kHz
8 kHz
1.536
1.536
1.544
1.544
1.544
1.544
2.048
2.048
2.048
2.048
2.048
2.048
2.048
2.059
2.059
Name
Port
via Digital1 or Digital2 (not Output O1)
via Digital1 or Digital2 (not Output O1)
(not Output O1)
via Digital1 or Digital2 (not Output O1)
via Digital1 or Digital2 (not Output O1)
LVDS/PECL
(LVDS default)
TTL/CMOS
TTL/CMOS
TTL/CMOS
Output Port
Technology
Frequency selection as per Table 9 and Table 13
FrSync, 8 kHz programmable pulse width and polarity, see Reg. 7A.
MFrSync, 2 kHz programmable pulse width and polarity, see Reg. 7A.
77.76 MHz Analog
Any digital feedback
mode
77.76 MHz Analog
Any digital feedback
mode
77.76 MHz Analog
Any digital feedback
mode
12E1 mode
77.76 MHz Analog
Any digital feedback
mode
DPLL1 Mode
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FINAL
Page 19
Frequencies Supported
12E1 mode
16DS1 mode
12E1 mode
16E1 mode
16DS1 mode
DPLL2 Mode
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ACS8526 LC/P LITE
Select DPLL2
Select DPLL1 12E1
Select DPLL2
Select DPLL1 16DS1
Select DPLL2
Select DPLL1 12E1
Select DPLL2
Select DPLL1 16E1
Select DPLL2
Select DPLL1 16DS1
APLL2 Input Mux
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DATASHEET
www.semtech.com
Jitter Level (typ)
1400
1400
3800
3800
3800
3800
500
250
200
150
500
250
400
220
900
200
150
rms
(ps)
60
60
p-p (ns)
0.6
0.6
2.3
1.5
1.2
1.0
2.3
1.5
2.0
1.2
4.5
1.2
1.0
13
18
13
18
5
5
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