ZL30416
4.2
4.2.1
4.2.1.1
Recommended Interface Circuit
Interfacing to REFin Receiver
Interfacing REFin Receiver to LVPECL Driver
Data Sheet
The ZL30416 REFin differential receiver can be connected to LVPECL compatible driver with an interface circuit, as
shown in Figure 7. The R1s and R2s terminating resistors should be placed close to the REFin input balls.
ZL30416
VCC=+3.3V
VDD/2
R1
Z=50
Ω
LVPECL
Driver
Z=50
Ω
R2
R1
Cc
Receiver
REFinP
REFinN
R2
Cc
Typical resistor values: R1 = 127
Ω,
R2 =82.5
Ω
Typical capacitor values: Cc = 0.1
µF
Figure 6 - Interfacing to LVPECL Driver
4.2.1.2
Interfacing REFin Receiver to LVDS or CML Drivers
The ZL30416 REFin differential receiver can be connected to LVDS or CML driver with an interface circuit, as
shown in Figure 7. The 100
Ω
terminating resistors should be placed close to the REFin input balls.
ZL30416
VDD/2
Z=50
Ω
100Ω
Z=50
Ω
REFinN
Cc
Cc
REFinP
Receiver
LVDS
or
CML
Driver
Typical capacitor values: Cc = 0.1
µF
Figure 7 - Interfacing to LVDS or CML Driver
9
Zarlink Semiconductor Inc.
ZARLINK [ ZARLINK SEMICONDUCTOR INC ]
