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ZL40214LDF1
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P18
P19-P21
ZL40214
Data Sheet
10
Microsemi Corporation
3.2 Clock Output
s
L
VDS has lower signal swing
than L
VPECL which results in
a low power consum
ption. A simplified diagram for the
L
VDS output sta
ge is shown in
Figure 12
.
VDD
3 mA
Out
put
-
+
+
-
Figure 12 - Simplified L
VDS Output Driver
The methods to terminate the
ZL40214
drivers are shown in the follo
wing figures.
LVD
S
Rec
eive
r
VDD
Z
o
= 50 Ohm
s
Z
o
= 50 Ohm
s
ZL40214
clk_p
clk_n
VDD_Rx
Figure 13 - L
VDS
DC Coupled T
ermination (Internal Rece
iver T
ermination)
LVDS
Receiver
VDD
VDD_Rx
Z
o
= 50 Ohms
Z
o
= 50 Ohms
ZL40214
clk_p
clk_n
100 Ohms
Figure 14 - L
VDS DC Coupled T
e
rmina
tion (External Receiv
er T
ermination)
LVDS
Receiver
VDD
VDD_Rx
Z
o
= 50 Ohms
Z
o
= 50 Ohms
ZL40214
clk_p
clk_n
100 Ohms
R2
VDD_Rx
R1
R1
R2
Note: R1 and R2 values and need for external termination
depend on the
specification
of the LVDS receiver
Figure 15 - L
VDS AC
Coupled T
ermination
ZL40214
Data Sheet
11
Microsemi Corporation
ZL40214
Data Sheet
12
Microsemi Corporation
Figure 16 - L
VDS AC Output T
ermination for CML Inputs
CML
Receiver
VDD
Z
o
= 50 Ohm
s
Z
o
= 50 Ohm
s
ZL40214
clk_p
clk_n
VDD_Rx
50 Ohms
50 Ohms
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P18
P19-P21
ZL40214LDF1
Mfr. #:
Buy ZL40214LDF1
Manufacturer:
Microchip / Microsemi
Description:
Clock Buffer 1:4 LVDS Fanout Buffer w/Ext. Term.
Lifecycle:
New from this manufacturer.
Delivery:
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ZL40214LDF1