ICS85454-01 Datasheet, PDF (10/15 Pages) Integrated Circuit Systems – DIFFERENTIAL-TO-LVDS MULTIPLEXER

Integrated
Circuit
Systems, Inc.
ICS85454-01
DUAL 2:1/1:2
DIFFERENTIAL-TO-LVDS MULTIPLEXER
TYPICAL APPLICATION DIAGRAM FOR HOT-SWAPPABLE LINKS TO REDUNDANT SWITCH FABRIC CARDS
TX
INB
nINB
SerDes
QB
nQB
RX
Linecard
SELB
LOOP 0
INA0
nINA0
0
QA0
1
nQA0
0
INA1
1
nINA1
QA1
nQA1
Switch
Fabric
SELA
LOOP 1
#0
#1
Redundant
Switch Card
Backplane
2.5V LVDS DRIVER TERMINATION
Figure 3 shows a typical termination for LVDS driver in
characteristic impedance of 100Ω differential (50Ω single)
transmission line environment. For buffer with multiple LDVS
driver, it is recommended to terminate the unused outputs.
2.5V
LVDS_Driv er
R1
100
100 O₁h₀m_0ΩD_Dif_if_fe_fer_re_en_nt_ti_ia_al_l T_Trra_ann_ss_mm_isis_ss_ioio_nn_LL_inin_ee
2.5V
+
-
85454AK-01
FIGURE 3. TYPICAL LVDS DRIVER TERMINATION
www.icst.com/products/hiperclocks.html
10
REV. B JUNE 16, 2006