ml7021 Oki Semiconductor, ml7021 Datasheet - Page 10

• Manufacturer Part Number: ml7021
• Description: Echo Canceler
• Manufacturer: Oki Semiconductor

1Semiconductor
AC Characteristics
Clock Frequency
When Internal Sync Signal is not used
Clock Cycle Time
When Internal Sync Signal is not used
Clock Duty Ratio
Clock High Level Pulse Width
fc = 19.2 MHz
Clock Low Level Pulse Width
fc = 19.2 MHz
Clock Rise Time
Clock Fall Time
Sync Clock Output Time
Internal Sync Clock Frequency
Internal Sync Clock Output Cycle Time
Internal Sync Clock Duty Ratio
Internal Sync Signal Output Delay Time
Internal Sync Signal Period
Internal Sync Signal Output Width
Transmit/receive Operation Clock Frequency
Transmit/receive Sync Clock Cycle Time
Transmit/receive Sync Clock Duty Ratio
Transmit/receive Sync Signal Period
Sync Timing
Sync Signal Width
Receive Signal Setup Time
Receive Signal Hold Time
Receive Data Input Time
Serial Output Delay Time
Reset Signal Input Width
Reset Start Time
Reset End Time
Processing Operation Start Time
Signal Output Delay Time
Signal Output Width
Parameter
Symbol
t
t
t
t
t
t
t
t
t
t
f
t
t
t
t
t
t
t
t
t
MCK
DMC
MCH
DCM
WSO
WSY
t
MCL
f
t
DCO
t
t
t
t
t
DRS
DCC
CYO
SCK
SCK
DSC
CYC
t
WIR
DRE
DIC
WR
f
DIT
CO
CO
XS
SX
DS
DH
SD
XD
t
t
ID
C
r
f
0.488
Min.
17.5
20.8
20.8
123
t
100
—
—
50
40
—
—
—
—
—
—
—
—
—
64
40
45
45
SCK
45
45
—
—
—
—
—
—
V
1
5
DD
= 2.7 V to 3.6 V
52.08
7t
Typ.
19.2
t
256
125
125
3.9
t
—
—
—
—
—
—
—
—
50
—
—
—
50
—
—
—
—
—
—
SCK
—
—
—
—
—
—
CO
SCK
t
CYC
Max.
57.14
2048
31.3
31.3
15.6
138
—
20
—
60
30
—
—
—
—
—
60
—
—
—
—
—
—
90
90
—
—
52
—
5
5
5
-t
SCK
0.488
Min.
17.5
20.8
20.8
t
123
100
—
—
50
40
—
—
—
—
—
—
—
—
—
64
40
45
45
SCK
45
45
—
—
—
—
—
—
V
1
5
DD
= 4.5 V to 5.5 V
52.08
Typ.
7t
19.2
256
125
125
t
3.9
t
—
—
—
—
—
—
—
—
50
—
—
—
50
—
—
—
—
—
—
SCK
—
—
—
—
—
—
CO
SCK
(Ta = –40˚C to +85˚C)
t
CYC
Max.
57.14
2048
31.3
31.3
15.6
138
—
20
—
60
30
—
—
—
—
—
60
—
—
—
—
—
—
90
90
—
—
52
—
5
5
5
-t
SCK
ML7021
Unit
MHz
kHz
kHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
%
%
s
s
s
s
s
s
s
s
s
s
10