SY58021U(2005) Ver la hoja de datos (PDF) - Micrel
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SY58021U Datasheet PDF : 9 Pages
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Micrel, Inc.
INPUT STAGE
Precision Edge®
SY58021U
VCC
IN
50Ω
VT
GND
50Ω
/IN
Figure 2. Simplified Differential Input Buffer
INPUT INTERFACE APPLICATIONS
VCC
VCC
LVPECL
IN
/IN
SY58021U
VT
VDD Rpd
VREF-AC
0.01µF
NC
For VCC = 2.5V, Rpd = 19Ω
For VCC = 3.3V, Rpd = 50Ω
Figure 3a. LVPECL
Input Interface
VCC
VCC
CML
NC
NC
IN
/IN
SY58021U
VT
VREF-AC
Option: May connect VT to VCC
Figure 3d. DC-Coupled CML
Input Interface
M9999-062405
hbwhelp@micrel.com or (408) 955-1690
VCC
VCC
LVPECL
Rpd
Rpd
0.01µF
IN
/IN
SY58021U
VT
VREF-AC
For 3.3V, Rpd = 100Ω VCC
For 2.5V, Rpd = 50Ω
Figure 3b. AC-Coupled LVPECL
Input Interface
VCC
VCC
CML
0.01µF
IN
/IN
SY58021U
VT
VREF-AC
VCC
Figure 3e. AC-Coupled CML
Input Interface
7
VCC
VCC
LVDS
NC
NC
IN
/IN
SY58021U
VT
VREF-AC
Figure 3c. LVDS
Input Interface
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