Document Outline

• 1. Pin Description
• 2. Characteristics and Specifications
  • Specified Operating Conditions
  • Absolute Maximum Ratings
  • DAC Analog Characteristics
  • Combined Interpolation & On-Chip Analog Filter Response
  • Combined Interpolation & On-Chip Analog Filter Response
  • Switching Specifications - Serial Audio Interface
    • Figure 1. Serial Input Timing
  • Switching Characteristics - Control Port - I·C® Format
    • Figure 2. Control Port Timing - I·C Format
  • Switching Characteristics - Control Port - SPI™ Format
    • Figure 3. Control Port Timing - SPI Format (Write)
  • Digital Characteristics
  • Power and Thermal Characteristics
• 3. Typical Connection Diagram
  • Figure 4. Typical Connection Diagram
• 4. Applications
  • 4.1 Sample Rate Range/Operational Mode Detect
    • 4.1.1 Auto-Detect Enabled
      • Table 1. CS4351 Auto-Detect
    • 4.1.2 Auto-Detect Disabled
      • Table 2. CS4351 Mode Select
  • 4.2 System Clocking
    • Table 3. Single-Speed Mode Standard Frequencies
    • Table 4. Double-Speed Mode Standard Frequencies
    • Table 5. Quad-Speed Mode Standard Frequencies
  • 4.3 Digital Interface Format
    • 4.3.1 Stand-Alone Mode
      • Table 6. Digital Interface Format - Stand-Alone Mode
    • 4.3.2 Control Port Mode
      • Figure 5. Left-Justified up to 24-Bit Data
      • Figure 6. I·S, up to 24-Bit Data
      • Figure 7. Right-Justified Data
  • 4.4 De-Emphasis Control
    • Figure 8. De-Emphasis Curve
    • 4.4.1 Stand-Alone Mode
    • 4.4.2 Control Port Mode
  • 4.5 Recommended Power-Up Sequence
    • 4.5.1 Stand-Alone Mode
    • 4.5.2 Control Port Mode
  • 4.6 Popguard® Transient Control
    • 4.6.1 Power-Up
    • 4.6.2 Power-Down
    • 4.6.3 Discharge Time
  • 4.7 Mute Control
  • 4.8 Grounding and Power Supply Arrangements
    • 4.8.1 Capacitor Placement
  • 4.9 Control Port Interface
    • 4.9.1 MAP Auto Increment
    • 4.9.2 I·C Mode
      • Figure 9. Control Port Timing, I·C Mode
    • 4.9.3 SPI Mode
      • Figure 10. Control Port Timing, SPI mode
  • 4.10 Memory Address Pointer (MAP)
    • 4.10.1 INCR (Auto Map Increment Enable)
    • 4.10.2 MAP (Memory Address Pointer)
• 5. Register Quick Reference
• 6. Register Description
  • 6.1 Chip ID - Register 01h
  • 6.2 Mode Control 1 - Register 02h
    • 6.2.1 Digital Interface Format (DIF2:0) Bits 6-4
      • Table 7. Digital Interface Formats
    • 6.2.2 De-Emphasis Control (DEM1:0) Bits 3-2.
      • Figure 11. De-Emphasis Curve
    • 6.2.3 Functional Mode (FM) Bits 1-0
  • 6.3 Volume Mixing and Inversion Control - Register 03h
    • 6.3.1 Channel A Volume = Channel B Volume (VOLB=A) Bit 7
    • 6.3.2 Invert Signal Polarity (Invert_A) Bit 6
    • 6.3.3 Invert Signal Polarity (Invert_B) Bit 5
    • 6.3.4 ATAPI Channel Mixing and Muting (ATAPI3:0) Bits 3-0
      • Figure 12. ATAPI Block Diagram
      • Table 8. ATAPI Decode
  • 6.4 Mute Control - Register 04h
    • 6.4.1 Auto-Mute (AMUTE) Bit 7
    • 6.4.2 AMUTEC = BMUTEC (MUTEC A=B) Bit 5
    • 6.4.3 A Channel Mute (MUTE_A) Bit 4 B Channel Mute (MUTE_B) Bit 3
  • 6.5 Channel A Volume Control - Register 05h Channel B Volume Control - Register 06h
    • 6.5.1 Digital Volume Control (VOL7:0) Bits 7-0
      • Table 9. Example Digital Volume Settings
  • 6.6 Ramp and Filter Control - Register 07h
    • 6.6.1 Soft Ramp and Zero Cross Control (SZC1:0) Bits 7-6
    • 6.6.2 Soft Volume Ramp-Up After Error (RMP_UP) Bit 5
    • 6.6.3 Soft Ramp-Down Before Filter Mode Change (RMP_DN) Bit 4
    • 6.6.4 Interpolation Filter Select (FILT_SEL) Bit 2
  • 6.7 Misc Control - Register 08h
    • 6.7.1 Power Down (PDN) Bit 7
    • 6.7.2 Control Port Enable (CPEN) Bit 6
    • 6.7.3 Freeze Controls (Freeze) Bit 5
• 7. Digital Filter Response Plots
  • Figure 13. Single-Speed (fast) Stopband Rejection
  • Figure 14. Single-Speed (fast) Transition Band
  • Figure 15. Single-Speed (fast) Transition Band (detail)
  • Figure 16. Single-Speed (fast) Passband Ripple
  • Figure 17. Single-Speed (slow) Stopband Rejection
  • Figure 18. Single-Speed (slow) Transition Band
  • Figure 19. Single-Speed (slow) Transition Band (detail)
  • Figure 20. Single-Speed (slow) Passband Ripple
  • Figure 21. Double-Speed (fast) Stopband Rejection
  • Figure 22. Double-Speed (fast) Transition Band
  • Figure 23. Double-Speed (fast) Transition Band (detail)
  • Figure 24. Double-Speed (fast) Passband Ripple
  • Figure 25. Double-Speed (slow) Stopband Rejection
  • Figure 26. Double-Speed (slow) Transition Band
  • Figure 27. Double-Speed (slow) Transition Band (detail)
  • Figure 28. Double-Speed (slow) Passband Ripple
  • Figure 29. Quad-Speed (fast) Stopband Rejection
  • Figure 30. Quad-Speed (fast) Transition Band
  • Figure 31. Quad-Speed (fast) Transition Band (detail)
  • Figure 32. Quad-Speed (fast) Passband Ripple
  • Figure 33. Quad-Speed (slow) Stopband Rejection
  • Figure 34. Quad-Speed (slow) Transition Band
  • Figure 35. Quad-Speed (slow) Transition Band (detail)
  • Figure 36. Quad-Speed (slow) Passband Ripple
• 8. Parameter Definitions
• 9. Package Dimensions
• 10. Ordering Information
• 11. Revision History
  • Table 10. Revision History