stlc3075 STMicroelectronics, stlc3075 Datasheet - Page 35

• Manufacturer Part Number: stlc3075
• Description: Integrated Pots Interface For Home Access Gateway And Wll
• Manufacturer: STMicroelectronics

STLC3075
Appendix C
Figure 24. Typical state diagram for STLC3075 operation
Note: all state transitions are under the microprocessor control.
On Hook Condition
PD=1,
D0=D1=0
Tj>Tth
Typical state diagram
Power
Down
Feeding
HI-Z
Off Hook Detection
PD=0, D0=D1=0
On Hook Detection for T>Tref
D0=1, D1=0,
D2=0/1
Ring Burst
Off Hook
D0=0, D1=1,
D2=0
Active
Ring Burst
On Hook Transmission
Normally used for
On Hook
Active
Off Hook Detection
Ringing
Detection
Ring Trip
Typical state diagram
Ring Pause
D0=0, D1=1,
D2=0
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