SY89545L_08 Datasheet, PDF (8/10 Pages) Micrel Semiconductor – 3.3V, 3.2Gbps DIFFERENTIAL 4:1 LVDS MULTIPLEXER with INTERNAL INPUT TERMINATION

Micrel, Inc.
INPUT AND OUTPUT STAGE INTERNAL TERMINATION
V_CC
Precision Edge^®
SY89545L
IN
50Ω
V_T
GND
50Ω
/IN
Figure 3. Simplified Differential Input Stage
INPUT INTERFACE APPLICATIONS
V_CC
CML
GND
NC
IN
/IN
SY89545L
V_T
Figure 4a. CML
Interface (DC-Coupled)
V_CC
IN
CML
/IN
GND
V_CC —1.4V
SY89545L
V_T
GND
Figure 4b. CML
Interface (AC-Coupled)
V_CC
IN
LVPECL
/IN
V_CC
SY89545L
GND
0.01µF
V_T
R_p
For V_CC = 3.3V, R_p = 50Ω
Figure 4c. LVPECL
Interface (DC-Coupled)
V_CC
IN
LVPECL
/IN
R_p
R_p
SY89545L
GND
GND
V_CC —1.4V
V_T
GND
For V_CC = 3.3V, R_p = 100Ω
Figure 4d. LVPECL
Interface (AC-Coupled)
V_CC
LVDS
GND
NC
IN
/IN
SY89545L
V_T
Figure 4e. LVDS Interface
M9999-060308
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