Preliminary Information
MT8924
AC Electrical Characteristics - PCM Timing*
(T
OP
=0 to 70°C; V
DD
=5V5%)
Characteristics
1
2
3
Input PCM setup time
Input PCM hold time
Output PCM propagation delay
Sym
t
SPCM
t
HPCM
t
PD
Min
80
35
25
125
Typ
Max
Units
ns
ns
ns
C
L
=150pF, R
L
=1KΩ
in 2.048MHz mode **
Test Conditions
*All AC characteristics are valid 250µs after V
DD
and the clock have been applied. C
L
is the max. capacitive load and R
L
i
s the test pull up
resistor.
**With Extra Bit Insert operating mode these times are 80ns longer.
Cki
0
1
2
F0i
t
SPCM
t
HPCM
DSTi
t
PD
DSTo
MSB
MSB
Figure 6 - PCM Timing
AC Electrical Characteristics - RESET Timing*
(T
OP
=0 to 70°C; V
DD
=5V5%)
Characteristics
1
2
3
4
RESET low setup time
RESET low hold time
RESET high setup time
RESET high level width
Sym
t
SLRES
t
HLRES
t
SHRES
t
WHRES
Min
100
50
90
t
CK
Typ
Max
Units
ns
ns
ns
ns
Test Conditions
* All AC characteristics are valid 250µs after V
DD
and the clock have been applied. C
L
is the max. capacitive load and R
L
is the test pull up
resistor.
Cki
t
SLRES
t
HLRES
t
SHRES
RESET
t
WHRES
Figure 7 - Reset Timing
8-13
MITEL [ MITEL NETWORKS CORPORATION ]
