User manual

Block Diagram Descriptions
Theory of Operation
3Ć26
Battery Backup
'(1 "(0"3(2 /0.4(#$1 12 -#!7 /.5$0 2. 2'$ -.-84.+ 2(+$   #30(-&
2'$ /.5$0$#8.%% /$0(.#1 .% 2'$  
'$  20.!$ !3%%$0 !. 0# (1 ".,/0(1$# .% 2'0$$ , (- "(0"3(21
H 20.!$ 1$-1$ 1$+$"2 "(0"3(207
H 20.!$ #$1*$5 "(0"3(207
H  !3%%$0 -# +$4$+ 1'(%2 "(0"3(207
$$ (&30$ 8 %.0 !+."* #( &0 , .% 2'(1 !. 0#
Strobe Sense Select
'(1 "(0"3(207 ".-1(121 .% 2'0$$ 1(&- + #(.#$1 2'$1$ #(.#$1 0$ -.0, ++7 .%%
'$ #(.#$1 " 007 2'$ 25. 1 ,/+(-& 1(&- +1   %0., 2'$ 25. 1 ,/+(-&
'$ #1 -# 2'$ 0$%$0$-"$ 120.!$ 1(&- + '$- / 02("3+ 0 #(.#$ (1 !( 1$# .-
(2 ++.51 2'$ 1$+$"2$# 120.!$ 1$-1$ 1(&- + 2. ".-2(-3$ .32 .% )3,/$0 
Strobe Deskew
'(1 "(0"3(2 ".00$"21 2'$ 2(,$ #$+ 7 !$25$$- 2'$ 1 ,/+(-& 120.!$ 1(&- +1
5'("' , 7 .""30 %0., 2'$ ,(1, 2"' (- 2'$ $62$0- + " !+(-& .0 (- 2'$ (-2$0- +
" !+$1 2' 2 #(120(!32$ 2'$ 120.!$ '$ 0$/.1(2(.-(-& (1 #.-$ 5(2' 2'$ 120.!$
#$1*$5 4.+2 &$1 5'("' 0$  ".-20.+ 4.+2 &$1 %.3-# .- )3,/$0 
.5$0 (1 +1. 13//+($# 2. 2'(1 !. 0# 2'0.3&' 2'(1 )3,/$0 '$ 120.!$ #$18
*$5 4.+2 &$1 0$ &$-$0 2$# .- 2'$   20.!$ 0(4$ !. 0# -# 0$
".-20.++$# !7 2'$ ,("0./0."$11.0 .- 2'$  (,$  1$.-20.++$0 !. 0# '$
1 ,/+(-& 120.!$ +(&-,$-2 (1 "'$"*$# !7 0.32(-& 2'$ 120.!$ 1$-1$ 1(&- +1 2.
2'$  (,$  1$.-20.++$0 !. 0# 5'$0$ 2'$ ,("0./0."$11.0 ,$ 130$1 -#
#)3121 2'$ 2(,$ +(&-,$-2 .% $ "' 1 ,/+(-& '$ #
TDR Buffer and Level Shift
'(1 "(0"3(207 ".-1(121 .% -  !3%%$0 -# %.30 #3 +820 -1(12.01 2' 2 +$4$+8
1'(%2 2'$  1(&- + %.0 /0./$0 #0(4$ .% 2'$  12$/ &$-$0 2.01 (- 2'$ 1 ,8
/+(-& '$ #1
A19 Strobe/TDR
Buffer Board