ACS8946 Semtech Corporation, ACS8946 Datasheet - Page 29

• Manufacturer Part Number: ACS8946
• Description: Jitter Attenuating, Multiplying Phase Locked Loop, with Protection Switch, for Oc-12/stm-4 and GbE
• Manufacturer: Semtech Corporation

Figure 18 SETS LVDS Output - DC Coupled to LVPECL
Receiver
Revision 3/November 2006 © Semtech Corp.
ADVANCED COMMUNICATIONS
SETS
LVDS
Output
OUTN
OUTP
Transmission
Line Impedance
50 Ohms
100R
LVPECL
INPUT
F8946D_018LVDS2LVPECL_02
CLKN
CLKP
JAM PLL
FINAL
Page 29
Figure 19 Generic LVDS - AC Coupled to LVPECL Receiver
Note...Activity monitors will not function with this scheme as
noise may cause activity detection by mistake. Consider
replacing one 4K3 resistor with a 4k7 resistor.
LVDS
Output
Device
F8946D_019LVDS2LVPECL_02
OUTN
OUTP
Transmission
Line Impedance
50 Ohms
100R
ACS8946 JAM PLL
220nF
220nF
4K3
2K7
VDD
2K7
4K3
DATASHEET
www.semtech.com
LVPECL
INPUT
GND
JAM PLL
CLKN
CLKP