Preliminary Information
MT9125
AC Electrical Characteristics† - Serial PCM/ADPCM Interfaces (see Figures 12 & 13)
Voltages are with respect to ground (VSS) unless otherwise stated.
†
Characteristics
Data Clock High
Sym
Min
Typ
Max
Units
Test Conditions
C =150pF
1
2
3
4
t
160
160
400
ns
ns
ns
ns
CLH
L
Data Clock Low
BCLK Period
t
C =150pF
L
CLL
BCL
t
7900
C =150pF
L
Data Output Delay (excluding
first bit)
60
60
C =150pF
L
t
DD
5
6
Output Active to High Z
Strobe Signal Setup
t
ns
ns
C =150pF
L
AHZ
SSS
t
80
80
t
t
-
-
C =150pF
L
BCL
80
7
8
9
Strobe Signal Hold
t
ns
ns
C =150pF
L
SSH
BCL
80
Strobe period relative to MCLK
(ENB1, ENB2, ENA)
512t
-
C =150pF
L
C4P
50
50
50
Data Input Setup
t
ns
ns
ns
ns
ns
%
C =150pF
L
DIS
10 Data Input Hold
11 Strobe to Data Delay (first bit)
12 F0i Setup
t
C =150pF
L
DIH
t
60
122
122
50
C =150pF
L
SD
t
t
50
50
40
150
150
60
C =150pF
L
F0iS
F0iH
13 F0i Hold
C =150pF
L
14 MCLK (C4i) duty cycle
t /t
C =150pF
L
H L
x100
15 MCLK (C4i) period
16 Data Output delay
17 Data in Hold time
18 Data in Setup time
t
190
244.2
125
ns
ns
ns
ns
C =150pF
L
C4P
t
C =150pF
L
DSToD
t
50
50
C =150pF
L
DSTiH
t
C =150pF
L
DSTiS
† Timing is over recommended temperature & power supply voltages.
‡ Typical figures are at 25°C and are for design aid only: not guaranteed and not subject to production testing.
8-29
MITEL [ MITEL NETWORKS CORPORATION ]
