SA2532P Datasheet, PDF (18/21 Pages) Sames – ONE MEMORY SINGLE CHIP TELEPHONE

SA2532P
AC Characteristics (contd) (I_LINE = 20mA; f=800Hz unless otherwise specified)
Symbol
t_AP
Parameter
Access Pause
Tone Ringer
Conditions
Min
Typ
Max
1.9
2.0
2.1
V_MO
Melody Output
Level
t_MD
Melody Delay
PDM
10
F1
Frequency 1
F2
Frequency 2
F3
Frequency 3
t_DT
Detection Time
Initial
t_TO
Detection
Time-out
f_MIN
Min. Detection
Frequency
f_MAX
Max. Detection
Frequency
Reminder Tone
1022
1363
1664
70
1065
1420
1734
Note4
13
71
1107
1476
1803
80
V_RT
Level (RO1/RO2) Relative to LS
t_RDT
Duration
t_RTI
Interval
Comfort Tone
(DTMF)
-30
82.3
274
V_CT
Level (RO1/RO2) Relative to LS
-30
Units
sec
ms
Hz
Hz
Hz
ms
ms
Hz
Hz
dBr
ms
ms
dBr
Note 1:
Note 2:
Note 3:
Note 4:
Note 5:
The values are valid during LNR dialling and are minimum values during manual dialling, i.e. the
tones will continue as long as the key is depressed.
The rise time is the time from 10% of final value until the tone amplitude has reached 90% of its final
value.
Relative to high group.
The FCI circuit is reset by the POR and the HS/DPB pulled high (off hook). After a reset the FCI
circuit is in a standby state. A positive edge on FCI will initiate the frequency discrimination.
Whenever a period of the ring signal is missing, the timer is reset. When a valid ring signal is
present for more than one cycle, the melody generator is started and is directly controlled by the ring
signal. This condition will remain until a new reset.
This does not include the frequency deviation of the ceramic resonator.
18 /21
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