CS4294 View Datasheet(PDF) - Cirrus Logic

Part Name

Description

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CS4294

SoundFusion® Audio/Docking Codec ’97 (AMC’97)

Cirrus Logic 

CS4294

LIST OF FIGURES

Figure 1. Power Up Timing.............................................................................................................. 8

Figure 2. Clocks .............................................................................................................................. 8

Figure 3. Codec Ready from Startup or Fault Condition ................................................................. 8

Figure 4. Data Setup and Hold........................................................................................................ 9

Figure 5. PR4 Powerdown .............................................................................................................. 9

Figure 6. Test Mode ........................................................................................................................ 9

Figure 7. AC-link Connections....................................................................................................... 11

Figure 8. Mixer Diagram................................................................................................................ 11

Figure 9. AC-link Input and Output Framing.................................................................................. 12

Figure 10. Line Inputs.................................................................................................................... 30

Figure 11. Differential CDROM In ................................................................................................. 30

Figure 12. PC ‘99 Microphone Pre-amplifier ................................................................................. 31

Figure 13. Headphones Driver ...................................................................................................... 32

Figure 14. Voltage Regulator ........................................................................................................ 32

LIST OF TABLES

Table 1. Mixer Registers ............................................................................................................... 17

Table 2. Alternate Line-Out and Master Mono Attenuation ........................................................... 19

Table 3. Analog Mixer Input Gain Values...................................................................................... 19

Table 4. Stereo Volume Register Index ........................................................................................ 20

Table 5. Input Mux Selection......................................................................................................... 20

Table 6. 6 Channel Volume Attenuation........................................................................................ 24

Table 7. GPIO Input/Output Configuration .................................................................................... 27

Table 8. Slot Assignments............................................................................................................ 28

Table 9. Reg. 7Eh Defined Part ID’s ............................................................................................. 29

4

DS326PP4

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