
V1.0 Dec 2006
Data Sheet
Ag1171
+3.3V / +5.0V Low Power Ringing SLIC
Table of Contents
1. Features...........................................................................................................................1
2. Description.......................................................................................................................1
Table of Contents.............................................................................................................2
Table of Figures ...............................................................................................................2
3. Ag1171 Product Selector.................................................................................................3
4. Pin Description.................................................................................................................5
5. Functional Description .....................................................................................................6
5.1. Line Interfacing..........................................................................................................6
5.2. Battery Feed..............................................................................................................6
5.3. Ringing......................................................................................................................6
5.4. Power Down and Synchronisation.............................................................................7
5.5. The 2-4 Wire (hybrid) Conversion .............................................................................8
5.6. Transmit and Receive Gain.......................................................................................8
5.7. The 2 Wire Impedance..............................................................................................8
5.8. Network Balance Impedance ....................................................................................8
5.9. Tip & Ring Polarity Reversal .....................................................................................8
5.10. On Hook Transmission............................................................................................8
5.11. Switch Hook Detection............................................................................................9
6. Protection of the Ag1171 SLIC ......................................................................................10
6.1. Thermal Protection..................................................................................................10
6.2. Lightning and Power Cross Protection....................................................................10
7. Typical Application.........................................................................................................10
8. DC Supply Voltage ........................................................................................................10
9. Layout Considerations...................................................................................................11
9.1. Power and Ground..................................................................................................11
10. Electrical Characteristics..............................................................................................12
10.1. Absolute Maximum Ratings* .................................................................................12
10.2. Recommended Operating Conditions*..................................................................12
10.3. DC Electrical Characteristics* ...............................................................................13
10.4. AC Electrical Characteristics*................................................................................14
11. Package.......................................................................................................................15
Table of Figures
Figure 1: Block Diagram ......................................................................................................3
Figure 2: Ag1171 Package Format......................................................................................4
Figure 3: Ringing Signal Waveforms ...................................................................................7
Figure 4: Typical Connection Diagram.................................................................................9
Figure 5: Optional EMI Suppression..................................................................................11
Silver Telecom 2006
2