ACS8526LC Semtech Corporation, ACS8526LC Datasheet - Page 70

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

Figure 15 Simplified Application Schematic
Revision 4.01/June 2006 © Semtech Corp.
Application Information
ADVANCED COMMUNICATIONS
D.ND
source failure indication
source switch control
VDD
An example setup where input and
output clocks are hard wired to
accept 19.44MHz on SEC1 and SEC2.
The outputs are configured as:
O1 -> 155.52MHz
O2 -> 38.88MHz
10
9
PORB
VS
GNDb
Typical 12.8MHz oscillator
10K
E2747_
R5
Optional circuit to ensure SRCSW is
high on power-up
C-MAC
VDD
X1
12.8MHz
220nF
C16
1M
R3
GND
term_connect
OP
D.ND
D.ND
arrow
BSH205
5v
0v
5
4
arrow
M1
P1
VDD
VDDA
BZV90C-5.6v
10R
10R
A.ND
R1
R2
ZD1
R4
1K
100nF
AGND
100uF
(+)
D.ND 3
C6
VDD3
100nF
C2
VDD5v
100nF
C7
C8
FrSync
O2
DGND
D.ND 2
100nF
100nF
C15
C3
10
11
12
13
14
15
16
MFrSync
FINAL
1
2
3
4
5
6
7
8
9
Page 70
A.ND
AGND1
IC1
AGND2
VA1+
LOS_ALARM
REFCLK
DGND1
VD1+
VD2+
DGND2
DGND3
VD3+
SRCSW
VA2+
AGND3
IC2
3
1
EZ1086-3.3V
VIN
GND
IC2
VDDA
10uF_TANT
VOUT
O1P
D.ND
2
C4
O1N
VDD
(+)
D.ND 2
optional -
only needed
for 5v
protection
ACS8526
IC1
100nF
VDD5v
C9
100nF
D.ND
C10
100nF
VDD2
C5
D.ND
C14
SEC1
100nF
ACS8526 LC/P LITE
SEC2
VDD
VDD3
VDD2
VDDA
O1_FREQ1
O1_FREQ0
O2_FREQ1
O2_FREQ2
O2_FREQ0
IP_FREQ2
IP_FREQ1
100nF
D.ND 2
D.ND 3
C11
A.ND
DGND5
VDD
PORB
SCLK
CLKE
VDD2
TRST
TMS
CSB
SDI
D.ND
D.ND
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
Optional Processor
Interface connections
SDO SDI
F8526D_031SimpleApp_01
CSB SCLK
100nF
C12
VDD
PORB
VDD
C13
D.ND
1nF
D.ND
DATASHEET
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