L9214A Просмотр технического описания (PDF) - Agere -> LSI Corporation

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Компоненты Описание

производитель

L9214A

Low-Cost Ringing SLIC

Agere -> LSI Corporation 

Preliminary Data Sheet

October 2001

L9214A/G

Low-Cost Ringing SLIC

Table of Contents (continued)

Figures

Page

Figure 1. Architecture Diagram ...................................7

Figure 2. 28-Pin SOG Diagram ..................................8

Figure 3. 32-Pin PLCC Diagram .................................8

Figure 4. 48-Pin MLCC Diagram .................................9

Figure 5. Basic Test Circuit (3 REN Configuration) ..22

Figure 6. Metallic PSRR ...........................................23

Figure 7. Longitudinal PSRR ....................................23

Figure 8. Longitudinal Balance .................................23

Figure 9. ac Gains ....................................................23

Figure 10. Ringing Waveform Crest Factor = 1.6 .....27

Figure 11. Ringing Waveform Crest Factor = 1.2 .....27

Figure 12. Ring Operation ........................................28

Figure 13. ac Equivalent Circuit ................................31

Figure 14. Agere T7504 First-Generation Codec;

Resistive Termination (5 REN

Configuration)...........................................32

Figure 15. Interface Circuit Using First-Generation

Codec (Blocking Capacitors

Not Shown) ..............................................35

Figure 16. ac Interface Using First-Generation

Codec (Including Blocking Capacitors)

for Complex Termination Impedance ......37

Figure 17. Agere T7504 First-Generation Codec;

Complex Termination with Power Control

Resistor (3 REN Configuration)................38

Figure 18. Third-Generation Codec ac Interface

Network; Complex Termination (3 REN

Configuration)...........................................40

Tables

Page

Table 1. Pin Descriptions ......................................... 10

Table 2. Control States ............................................ 12

Table 3. Typical Operating Characteristics .............. 14

Table 4. Thermal Characteristics.............................. 14

Table 5. Environmental Characteristics ................... 15

Table 6. 5.0 V Supply Currents ............................... 15

Table 7. 5. 0 V Powering .......................................... 15

Table 8. 3.3 V Supply Currents ................................ 16

Table 9. 3.3 V Powering .......................................... 16

Table 10. Two-Wire Port .......................................... 17

Table 11. Analog Pin Characteristics ...................... 18

Table 12. ac Feed Characteristics ........................... 19

Table 13. Logic Inputs and Outputs

(VCC = 5.0 V) .............................................. 20

Table 14. Logic Inputs and Outputs

(VCC = 3.3 V) ............................................ 20

Table 15. Ringing Specifications ............................. 20

Table 16. Ring Trip (3 REN Configuration) .............. 21

Table 17. Ring Trip (5 REN Configuration)............... 21

Table 18. Typical Active Mode On- to Off-Hook

Tip/Ring Current-Limit Transient

Response ................................................ 25

Table 19. FB1/FB2 Values vs. Typical Ramp Time

at VBAT1 = –65 V ....................................... 26

Table 20. L9214 Parts List for Agere T7504

First-Generation Codec; Resistive

Termination .............................................. 33

Table 21. L9214 Parts List for Agere T7504 First-

Generation Codec; Complex Termination

with Power Control Resistor .................... 38

Table 22. L9214 Parts List for Agere T8536

Third-Generation Codec Meter Pulse

Application ac and dc Parameters;

Fully Programmable ................................ 41

Agere Systems Inc.

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