Document Outline

• Features
• Description
• 1. Characteristics and specifications
  • Analog Characteristics
  • Mixer Characteristics
  • Absolute Maximum Ratings
  • Recommended Operating Conditions
  • Digital Characteristics
  • AC ’97 Serial Port Timing
  • Figure 1. Power Up Timing
  • Figure 2. Codec Ready from Startup or Fault Condition
  • Figure 3. Clocks
  • Figure 4. Data Setup and Hold
  • Figure 5. PR4 Powerdown and Warm Reset
  • Figure 6. Test Mode
• 2. General Description
  • 2.1 AC-Link
    • Figure 7. AC-link Connections
  • 2.2 Control registers
  • 2.3 Output Mixer
  • 2.4 Input Mux
  • 2.5 Volume Control
    • Figure 8. Mixer Diagram
• 3. ACLink Frame Definition
  • Figure 9. AC-link Input and Output Framing
  • 3.1 AC-Link Serial Data Output Frame
  • 3.2 AC-Link Audio Input Frame
  • 3.3 AC-Link Protocol Violation - Loss of SYNC
• 4. Register Interface
  • Table 1. Mixer Registers
  • Table 2. Analog Mixer Output Attenuation
  • Table 3. Microphone Input Gain Values
  • Table 4. Analog Mixer Input Gain Values
  • Table 5. Stereo Volume Register Index
  • Table 6. Input Mux Selection
  • Table 7. Slot Mapping
  • Table 8. Device ID with Corresponding Part Number
  • Table 9. Revision Values
• 5. Power Management
  • 5.1 AC’97 Reset Modes
    • 5.1.1 Cold AC‘97 Reset
    • 5.1.2 Warm AC’97 Reset
    • 5.1.3 Register AC’97 Reset
  • 5.2 Powerdown Controls
    • Table 10. Powerdown PR Bit Functions
    • Table 11. Powerdown PR Function Matrix
    • Table 12. Power Consumption by Powerdown Mode
• 6. Analog Hardware Description
  • 6.1 Analog Inputs
    • 6.1.1 Line-Level Inputs
    • 6.1.2 CD Input
      • Figure 10. Line Input (Replicate for Video and Aux)
      • Figure 11. Differential 2 VRMS CD Input
      • Figure 12. Differential 1 VRMS CD Input
    • 6.1.3 Microphone Inputs
      • Figure 13. Microphone Input
      • Figure 14. Microphone Pre-amplifier
    • 6.1.4 PC Beep Input
      • Figure 15. PC_BEEP Input
    • 6.1.5 Phone Input
      • Figure 16. Modem Connection
  • 6.2 Analog Outputs
    • 6.2.1 Stereo Outputs
    • 6.2.2 Mono Output
      • Figure 17. Alternate Line Output as Headphone Output
      • Figure 18. Stereo Output
  • 6.3 Miscellaneous Analog Signals
  • 6.4 Power Supplies
    • Figure 19. Voltage Regulator
  • 6.5 Reference Design
• 7. Sony/Philips Digital Interface (S/PDIF)
  • Figure 20. S/PDIF Output
• 8. Grounding and Layout
  • Figure 21. Conceptual Layout for the CS4297A
• 9. Pin Descriptions
  • Figure 22. Pin Locations for the CS4297A
• 10. Parameter and Term Definitions
• 11. Reference Design
  • Figure 23. CS4297A Reference Design
• 12. References
• 13. Package dimensions