AS2525F AMSCO [austriamicrosystems AG], AS2525F Datasheet - Page 22

• Manufacturer Part Number: AS2525F
• Description: Single-Chip Handsfree Phone CMOS Integrated Circuit
• Manufacturer: AMSCO [austriamicrosystems AG]

Datasheet AS2525
Tone Ringer
Pacifier Tone
Revision 2.1
Symbol
Symbol
V
f
t
f
t
PARO
F1
F2
F3
t
MAX
f
MIN
TBD
ITP
DT
PT
Frequency 1
Frequency 2
Frequency 3
Detection Time
Min. Detection Frequency
Max. Detection Frequency
Tone Output Level, RO
Tone Output Level, LO1/2
Frequency
Tone Burst Duration
Inter-Tone Pause
Parameter
Parameter
Initial
RL = 150
RL = 32
Key entry
Key entry
Acknowledge, terminate PG
mode
Rejection, invalid key entry
Conditions
Conditions
1025
1280
Min.
Min.
770
12
68
1067
1333
1333
4x40
Typ.
Typ.
800
100
300
140
13
70
30
40
80
Max.
1110
1385
Max.
830
14
75
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Units
Units
mV
mV
Hz
Hz
Hz
ms
Hz
Hz
Hz
ms
ms
ms
ms
P-P
P-P