EM92547A/B/D
CALLER ID FSK DECODER
Off-hook FSK :
TIP/RING
/CD
SHORTDATA
OSC
/PWUP
M
TCDL
FSK data
TSDV
1
TOSC
DATA
3.58MHz
TCDH
ps. Typically, off-hook FSK signal has to be at least ‘TCDL +
TSDV = 15ms + 12.5ms = 17.5 ms’ of Mark bits time for
SHORTDATA timing detected valid.
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* This specification are subject to be changed without notice.
1998
~9~