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CF8224C Datasheet(PDF) 8 Page - Nippon Precision Circuits Inc

Part # CF8224C
Description  Dual-Tone Receiver IC
PDF  11 Pages
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Manufacturer  NPC [Nippon Precision Circuits Inc]
Direct Link  http://www.npc.co.jp/en
Logo NPC - Nippon Precision Circuits Inc

CF8224C Datasheet(HTML) 8 Page - Nippon Precision Circuits Inc

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SM8224C
SEIKO NPC CORPORATION —8
TIMING DIAGRAMS
FSK demodulator timing
Output timing
DOUT
STR
Data timing
PDWN is an internal signal (set by S0, S1, MODE)
101010...
1
Data
1st Ring
2nd Ring
101010...1
Data
L1/L2
PDWN
DOUT
OSCOUT
tDAQ
CDET
tDCH
tDOSC
DOUT
tr0
tf0
90%
10%
tf0
tr0
90%
10%
STR
0
b0 b1 b2 b3 b4 b5 b6 b7
1
0
b0 b1 b2 b3 b4
b6 b7
1
b5 b6
b4 b5 b6 b7
b0 b1 b2 b3 b4 b5 b6 b7
b0 b1 b2 b3 b4
tIDD
START
STOP
TIP/RING
DOUT
START
STOP
START
STOP



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