TEA7092TQ View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'TEA7092TQ' PDF : 24 Pages View PDF
TEA7092
MICROCONTROLLER INTERFACE (continued)
Reset and Power On
Figure 7 : Telephone Set Powered from the Line, IL > IREF1, without Batteries
With ou t Us in g the RES ET Co d e Thro ug h the Se ria l Bu s Interfa c e
IL A
B
C
D
E
D
A
IREF 1
VMC
t
5
2.7
VRMC
t
3.5
2.6
t
P ON
RE S E T
t
Us in g th e RES ET Co de Th rou g h th e S erial Bu s Interfa c e
IL A
B
C
D
E
D
F
D
IREF 1
VMC
5
2.7
t
A
t
VRMC
t
3.5
2.6
P ON
td
td
t
RE S E T
t
A : ON-HOOK
B : S TART UP + SP EECH
C : P ULSE DIALING
D : SP EECH or DTMF
E : LINE BREAK EXCHANGE DURATION
F : LINE BREAK EXCHANGE DURATION > td
td : DELAY FIXED BY THE MICROCONTROLLER
t
Re s et code (0010111) s ent by
the microcontroller.
12/24
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