XRT86L30
REV. 1.0.1
SINGLE T1/E1/J1 FRAMER/LIU COMBO
AC ELECTRICAL CHARACTERISTICS RECEIVE OVERHEAD FRAMER
Test Conditions: TA = 25°C, VDD = 3.3V + 5% unless otherwise specified
S
YMBOL
P
ARAMETER
M
IN
.
TYP
.
MAX
.
U
NITS
CONDITIONS
RxSERCLK as an Output
t26
t27
t28
Rising Edge of RxSERCLK to Rising Edge of
RxSYNC
4
7
7
nS
nS
nS
Rising Edge of RxSERCLK to Rising Edge of RxO-
HCLK
Rising Edge of RxSERCLK to Rising Edge of RxOH
RxSERCLK as an Input
t29
t30
t31
Rising Edge of RxSERCLK to Rising Edge of
RxSYNC
9
nS
nS
nS
Rising Edge of RxSERCLK to Rising Edge of RxO-
HCLK
12
12
Rising Edge of RxSERCLK to Rising Edge of RxOH
FIGURE 118. FRAMER SYSTEM RECEIVE OVERHEAD TIMING DIAGRAM (RXSERCLK AS AN OUTPUT)
t26
RxSYNC
RxSERCLK
(Output)
t27
t28
RxOHCLK
RxOH
FIGURE 119. FRAMER SYSTEM RECEIVE OVERHEAD TIMING DIAGRAM (RXSERCLK AS AN INPUT)
RxOH Interface with RxSERCLK as an Input
t29
RxSYNC
RxSERCLK
(Input)
t30
t31
RxOHCLK
RxOH
266
EXAR [ EXAR CORPORATION ]
