CS4298 Datasheet, PDF (4/52 Pages) Cirrus Logic – SoundFusion Audio/Modem Codec 97 (AMC 97)

CS4298
8. PIN DESCRIPTIONS .............................................................................................................. 42
8.1 g2 ..................................................................................................................................... 43
8.2 Analog I/O Pins ................................................................................................................ 45
8.3 Filter and Reference Pins ................................................................................................ 46
8.4 Modem/Telephony ........................................................................................................... 47
8.5 Power Supplies ................................................................................................................ 48
9. PARAMETER AND TERM DEFINITIONS .............................................................................. 49
10. REFERENCES ...................................................................................................................... 50
11. PACKAGE DIMENSIONS ..................................................................................................... 51
LIST OF FIGURES
Figure 1. Power Up Timing............................................................................................................ 10
Figure 2. Clocks ............................................................................................................................ 10
Figure 3. Codec Ready from Startup or Fault Condition ............................................................... 10
Figure 4. Data Setup and Hold ...................................................................................................... 11
Figure 5. PR4 Powerdown ............................................................................................................ 11
Figure 6. Test Mode ...................................................................................................................... 11
Figure 7. AC-link Connections....................................................................................................... 13
Figure 8. Mixer Diagram................................................................................................................ 15
Figure 9. AC-link Input and Output Framing.................................................................................. 16
Figure 10. Line Inputs.................................................................................................................... 37
Figure 11. Differential CDROM In ................................................................................................. 37
Figure 12. PC ‘99 Microphone Pre-amplifier ................................................................................. 38
Figure 13. Headphones Driver ...................................................................................................... 39
Figure 14. IEC-958 Interface Examples ........................................................................................ 40
Figure 15. Voltage Regulator ........................................................................................................ 40
Figure 16. Hybrid Circuit Secondary ............................................................................................ 41
LIST OF TABLES
Table 1. Mixer Registers ............................................................................................................... 21
Table 2. Alternate Line-Out and Master Mono Attenuation ........................................................... 24
Table 3. Analog Mixer Input Gain Values...................................................................................... 24
Table 4. Stereo Volume Register Index ........................................................................................ 25
Table 5. Input Mux Selection ......................................................................................................... 25
Table 6. 6 Channel Volume Attenuation........................................................................................ 30
Table 7. GPIO Input/Output Configuration .................................................................................... 33
Table 8. Misc. Modem Configuration............................................................................................. 34
Table 9. Slot Assignments............................................................................................................ 35
Table 10. Reg. 7Eh Defined Part ID’s ........................................................................................... 36
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DS315PP2