参数资料
型号: ACS8946
元件分类: 数字传输电路
英文描述: ATM/SONET/SDH SUPPORT CIRCUIT, QCC48
封装: 7 X 7 MM, QFN-48
文件页数: 21/40页
文件大小: 663K
代理商: ACS8946
ADVANCED COMMUNICATIONS
FINAL
DATASHEET
Revision 3/November 2006 Semtech Corp.
Page 28
www.semtech.com
ACS8946 JAM PLL
Figure 14 CML Output - DC Coupled to CML Receiver
Figure 15 JAM PLL CML Output DC coupled to LVPECL or
LVDS Receiver
Figure 16 Generic CML Output AC Coupled to LVPECL
Receiver
130/120R mismatch is used in the input bias network in
Figure 16 to emulate a simplified differential Schmitt
trigger, reducing the susceptibility to input noise when no
input is connected.
Figure 17 LVPECL Output - DC Coupled to LVPECL or LVDS
Receiver
ACS8946 output
or similar CML output
VSS
F8946D_015CML2CMLTerm_03
CML
Receiver
OUTP
Transmission Line
OUTN
50R
These resistors may
be integrated on-chip
16mA
VDD
OUTP
VDD -0.2V
VDD -0.4V
VDD
ACS8946 output
or similar CML output
VSS
F8946D_016CML2LVPECLLVDS_03
ACS8946 or similar
LVPECL/LVDS receiver
OUTP
OUTN
50R
50
R
Transmission Line
130R
82R
130
R
82R
These resistors may
be integrated on-chip
16mA
VDD
VSS
ACS8946 output
or similar CML output
VSS
F8946D_014GCML2LVPECLLVDS_03
ACS8946 or similar
LVPECL/LVDS receiver
OUTP
OUTN
50R
220nF
82R
130R
82R
120R
16mA
VDD
VSS
Transmission Line
F8946D_017LVPECL2LVPECLLVDS_03
ACS8946 or similar
LVPECL/LVDS receiver
OUTP
OUTN
Transmission Line
130R
82R
130R
82R
These resistors may
be integrated on-chip
VDD
ASC8946 or similar
LVPECL Output
VDD
VSS
VDD -1.0 V
OUTP
VDD -1.4 V
VDD -1.8 V
Time
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