L9311 Full-Feature SLIC with High Longitudinal Balance,
Ringing Relay, and GR-909 Test Access
Data Sheet
July 2001
Table of Contents (continued)
Figures
Page
Tables
Page
Figure 1. Architecture Diagram................................... 8
Figure 2. Test Diagram............................................... 9
Figure 3. 44-Pin PLCC ............................................... 9
Figure 4. Timing Requirements ................................ 23
Figure 5. On-State I-V Characteristics...................... 25
Figure 6. Basic Test Circuit ...................................... 26
Figure 7. Metallic PSRR ........................................... 27
Figure 8. Longitudinal PSRR .................................... 27
Figure 9. Longitudinal Balance................................. 27
Figure 10. Longitudinal Impedance .......................... 27
Figure 11. ac Gains .................................................. 27
Figure 12. L9311 Loop/Battery Current (with
Table 1. Pin Descriptions ........................................... 9
Table 2. Primary Control States................................ 12
Table 3. Secondary Control States........................... 12
Table 4. Supervision Coding..................................... 12
Table 5. Device Operating Conditions and
Powering ..................................................... 17
Table 6. Ring Trip Detector....................................... 18
Table 7. ac Test Source ............................................ 19
Table 8. Test Sense .................................................. 19
Table 9. SLIC Two-Wire Port .................................... 20
Table 10. Analog Pin Characteristics........................ 21
Table 11. ac Feed Characteristics............................. 22
Table 12. Logic Inputs and Outputs.......................... 23
Table 13. Timing Requirements................................ 23
Table 14. Break Switches (SW1, 2).......................... 24
Table 15. Ring Return Switch (SW3)........................ 24
Table 16. Ringing Access Switch (SW4) .................. 25
Table 17. Typical Active Mode On- to Off-Hook
Tip/Ring Current-Limit Transient
Battery Switch) vs. Loop Resistance....... 29
Figure 13. Tip/Ring Voltage ..................................... 32
Figure 14. L9311 Loop Current vs. Loop Voltage..... 32
Figure 15. ac Equivalent Circuit................................ 43
Figure 16. Agere T7504 First-Generation Codec
Resistive Termination, Single Battery
Operation................................................. 44
Figure 17. L9311 for Agere T8536 Third-Generation
Codec, Dual Battery Operation, ac and dc
Response .................................................. 31
Table 18. FB1 and FB2 Values vs. Typical Ramp
Time .......................................................... 33
Table 19. Break-Before-Make Logic Control
Parameters, Fully Programmable............ 46
Sequence Device Switching...................... 35
Table 20. TESTLEV Output Options......................... 39
Table 21. L9311 Parts List for Agere T7504
First-Generation Codec, Resistive Termina-
tion, Single Battery Operation ................... 45
Table 22. L9311 Parts List for Agere T8536
Third-Generation Codec, Dual Battery
Operation, ac and dc Parameters, Fully
Programmable........................................... 47
Agere Systems Inc.
3
AGERE [ AGERE SYSTEMS ]
