2/24/2008 9T6WP
Preliminary Hardware Data Module
BCM7405
06/29/07
Timing and AC Characteristics
Bro a d c o m Co rp o r a ti o n
Document
7405-1HDM00-R
MPOD Input Timing Page 1-151
MPOD I
NPUT
T
IMING
Figure 1-36: MPOD Input Timing
Table 1-22: MPOD Input Timing Parameters
Description
Symbol
Min.
Max.
Units
i_MPOD_CLK frequency
Fs
–
54
MHz
i_MPOD_CLK rise time
1
Trise
–
2
ns
i_MPOD_CLK fall time
1
Tfall
–
2
ns
i_MPOD_DATA, i_MPOD_SYNC Setup Time to i_MPOD_CLK active edge
(rising or falling)
2
Tsu
3
–
ns
i_MPOD_DATA, i_MPOD_SYNC Hold Time from i_MPOD_CLK active
edge (rising or falling)
2
Thd
3
–
ns
1
Rise and Fall time specs are measured from the 10% and 90% VDD levels.
2
The active clock edge for i_MPOD_CLK is programmable to either the rising or falling edge.
3
Tsu and Thd are measured from 10% and 90% VDD levels for falling and rising transitions of i_MPOD_DATA and
i_MPOD_SYNC.
i_MPOD_CLK
i_MPOD_SYNC,
i_MPOD_DATA[1:0]
T
s
u
T
h
d
T
s
u
T
h
d