CF8223A
Timing Characteristics
Oscillator
V
DD
= 3.0V ± 0.3V, GND = 0V, T
a
=
−
20 to 85
°
C unless otherwise noted.
Rating
Parameter
Clock HIGH-level pulsewidth
Clock LOW-level pulsewidth
Clock rise time
Clock fall time
Symbol
t
WH
t
WL
t
r
t
f
Condition
min
110
110
–
–
typ
–
–
–
–
max
–
–
30
30
ns
ns
ns
ns
Unit
FSK decoder
V
DD
= 3.0V ± 0.3V, GND = 0V, f
CLK
= 3.579545MHz, T
a
=
−
20 to 85
°
C unless otherwise noted.
Rating
Parameter
Power-down release time
Oscillator start-up time
Mark signal to DV ON time
FSK flag setup time
FSK flag hold time
Input to DOUT delay time
DOUT rise time
DOUT fall time
DOUT data rate
Symbol
t
DPD
t
DOSC
t
DED
t
AF
t
AH
t
ADD
t
Dr0
t
Df0
t
DWL/H
DV = LOW
Condition
min
–
–
–
–
–
–
–
–
1188
typ
8
5
–
–
–
1
–
–
1200
max
–
–
3.75
833
(1/1.2kHz)
10
5
20
20
1212
ms
ms
ms
µ
s
ns
ms
ns
ns
baud
Unit
DTMF receiver
V
DD
= 3.0V ± 0.3V, GND = 0V, f
CLK
= 3.579545MHz, T
a
=
−
20 to 85
°
C unless otherwise noted.
Rating
Parameter
DOUT, DV rise time
DOUT, DV fall time
Signal detection time
Received signal non-detection time
Pause detection time
Pause non-detection time
DV output data delay time
Power-down release time
Oscillator start-up time
DOUT data rate
DTMF flag setup time
Symbol
t
Dr0
t
Df0
t
RE
t
RE
t
PA
t
PR
t
BDD
t
DPD
t
DOSC
t
DWL/H
t
AF
DV
DV
DV
DV
Condition
min
–
–
–
20
–
20
–
–
–
1188
–
typ
–
–
–
–
–
–
–
8
5
1200
–
max
20
20
45
–
25
–
5
–
–
1212
833
(1/1.2kHz)
ns
ns
ms
ms
ms
ms
ms
ms
ms
baud
µs
Unit
NIPPON PRECISION CIRCUITS INC.—5
SEIKO [ SEIKO EPSON CORPORATION ]
