PM6341 E1XC
DATA SHEET
PMC-910419
ISSUE 8
E1 FRAMER/TRANSCEIVER
4. The reference input (REF) timing applies to E1XC inputs BTCLK and TCLKI.
Table 22
Symbol
-TCLKI Input (Figure 40)
Description
Min
Max
Units
TCLKI Instantaneous Frequency
(when used for DJAT REF or for mux
operation). Long term average
frequency is typically 2.048MHz
4.10
MHz
TCLKI Frequency (when DJAT PLL
not used), typically 16.384MHz
16.8
MHz
ns
t
t
TCLKI High Duration
(TCLKI=2.048MHz) (note 1)
100
100
H
TCLKI
TCLKI Low Duration
ns
L
TCLKI
(TCLKI=2.048MHz) (note 1)
t
t
TCLKI Rise Time
5
ns
ns
R
TCLKI
BTCLK falling to TCLKI falling Set-up 45
Time (only applicable when Reg 04H
FIFOBYP bit = 1)
S
BTCLK
t
BTCLK falling to TCLKI falling Hold
Time (only applicable when Reg 04H
FIFOBYP bit = 1)
0
ns
H
BTCLK
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
238
PMC [ PMC-SIERRA, INC ]
