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 1200
baud FSK (Frequency Shift Keying)
demodulator with sensitivity
-45dBm
 (in
600§Ù) conforms to Bell 202
and CCITT V.23 standards.
Receive
sensitivity of -38dBm in 600§Ù
for CAS (CPE Alerting Signal)
Progress
Tone Energy (PTE) detector with
sensitivity of -38dBm
Ring
or Line Reversal detector
Ring
Frequency measurement
Line
voltage measurement
DTMF
generator with gain controller
for all 16 characters
On-hook
and off-hook applications according
to Telcordia GR-30-CORE standard.
Compatible
with ETSI standards ETS 300
659-1 and ETS 300 659-2
5V
operation
On-chip
3.579545MHz crystal oscillator
Power-down
mode
24-pin
SOP package
0.5um
CMOS triple metal process
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