ICS85354AK ICST [Integrated Circuit Systems], ICS85354AK Datasheet - Page 10

• Manufacturer Part Number: ICS85354AK
• Description: DUAL 2:1/1:2 DIFFERENTIAL -TO-LVPECL/ECL MULTIPLEXER
• Manufacturer: ICST [Integrated Circuit Systems]

T
Figure 3A and Figure 3B show examples of termination for 2.5V
LVPECL driver. These terminations are equivalent to terminat-
ing 50Ω to V
85354AK
F
ERMINATION FOR
IGURE
VCCO=2.5V
VCCO=2.5V
F
IGURE
2,5V LVPECL
Driv er
2,5V LVPECL
Driv er
3A. 2.5V LVPECL D
CC
3C. 2.5V LVPECL T
- 2V. For V
Integrated
Circuit
Systems, Inc.
Zo = 50 Ohm
Zo = 50 Ohm
Zo = 50 Ohm
Zo = 50 Ohm
2.5V LVPECL O
CC
= 2.5V, the V
RIVER
2.5V
R1
250
ERMINATION
R1
50
R2
62.5
T
CC
ERMINATION
- 2V is very close to
R3
250
UTPUT
R2
50
R4
62.5
www.icst.com/products/hiperclocks.html
PRELIMINARY
E
+
-
XAMPLE
+
-
E
2.5V
2.5V
XAMPLE
D
10
IFFERENTIAL
ground level. The R3 in Figure 3B can be eliminated and the
termination is shown in Figure 3C.
F
IGURE
VCCO=2.5V
2,5V LVPECL
Driv er
3B. 2.5V LVPECL D
-
TO
Zo = 50 Ohm
Zo = 50 Ohm
-LVPECL/ECL M
RIVER
R1
50
T
ICS85354
ERMINATION
D
R2
50
R3
18
UAL
REV. B JUNE 8, 2004
ULTIPLEXER
+
-
2:1/1:2
E
2.5V
XAMPLE