cf8223a Nippon Precision Circuits Inc, (NPC), cf8223a Datasheet - Page 5

• Manufacturer Part Number: cf8223a
• Description: Fsk Decoder And Dtmf Receiver Ic
• Manufacturer: Nippon Precision Circuits Inc, (NPC)

Timing Characteristics
Oscillator
V
FSK decoder
V
DTMF receiver
V
Clock HIGH-level pulsewidth
Clock LOW-level pulsewidth
Clock rise time
Clock fall time
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
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
DD
DD
DD
= 3.0V ± 0.3V, GND = 0V, T
= 3.0V ± 0.3V, GND = 0V, f
= 3.0V ± 0.3V, GND = 0V, f
Parameter
Parameter
Parameter
CLK
CLK
Symbol
Symbol
Symbol
a
t
t
t
t
DWL/H
DWL/H
t
DOSC
t
t
t
t
DOSC
t
= − 20 to 85 ° C unless otherwise noted.
t
t
t
t
t
DPD
DED
t
t
ADD
t
t
t
BDD
DPD
t
t
WH
Dr0
Df0
Dr0
Df0
WL
AH
RE
RE
PR
AF
PA
AF
t
t
r
f
= 3.579545MHz, T
= 3.579545MHz, T
DV = LOW
DV
DV
DV
DV
CF8223A
Condition
Condition
Condition
a
a
= − 20 to 85 ° C unless otherwise noted.
= − 20 to 85 ° C unless otherwise noted.
1188
1188
min
min
min
110
110
20
20
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
NIPPON PRECISION CIRCUITS INC.—5
Rating
Rating
Rating
1200
1200
typ
typ
typ
–
–
–
–
8
5
–
–
–
1
–
–
–
–
–
–
–
–
–
8
5
–
(1/1.2kHz)
(1/1.2kHz)
1212
1212
max
max
3.75
max
833
833
30
30
10
20
20
20
20
45
25
–
–
–
–
5
–
–
5
–
–
baud
baud
Unit
Unit
Unit
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
µ s
µs
ns
ns
ns
ns
ns
ns
ns
ns
ns