CS4222-KS Cirrus Logic Inc, CS4222-KS Datasheet - Page 3

• Manufacturer Part Number: CS4222-KS
• Description: Audio CODECs IC 20-Bit Stereo Codec w/Vol Cntrl
• Manufacturer: Cirrus Logic Inc

Specifications of CS4222-KS

• Number Of Adc Inputs: 2
• Number Of Dac Outputs: 2
• Conversion Rate: 48 KSPs
• Interface Type: Serial (I2C, SPI)
• Resolution: 20 bit
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Package / Case: SSOP-28
• Minimum Operating Temperature: - 10 C
• Number Of Channels: 2 ADC, 2 DAC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

LIST OF FIGURES
LIST OF TABLES
DS236F1
Table 1. Control Port vs. Stand-Alone Mode ....................................................................................... 14
Table 2. High Pass Filter Characteristics ............................................................................................ 16
Table 3. Common Clock Frequencies ................................................................................................. 19
Table 4. De-Emphasis filter control ..................................................................................................... 22
5. REGISTER DESCRIPTIONS .............................................................. 25
6. PARAMETER DEFINITIONS .............................................................. 28
7. PACKAGE DIMENSIONS ................................................................... 29
Figure 1. Serial Audio Interface Timing........................................................................................... 9
Figure 2. Control Port Timing - SPI Mode ..................................................................................... 10
Figure 3. Control Port Timing - I2C Mode ..................................................................................... 11
Figure 4. CS4222 Recommended Connection Diagram............................................................... 13
Figure 5. Optional Line Input Buffer .............................................................................................. 15
Figure 6. Full Scale Input/Output Voltage ..................................................................................... 15
Figure 7. 2- and 3-Pole Butterworth Filters ................................................................................... 17
Figure 8. Hybrid Analog/Digital Attenuation .................................................................................. 18
Figure 9. Audio DSP Data Input Formats...................................................................................... 20
Figure 10. Audio DSP Data Output Formats................................................................................. 20
Figure 11. Control Port Timing, SPI mode .................................................................................... 21
Figure 12. Control Port Timing, I
Figure 13. De-emphasis Curve. .................................................................................................... 22
Figure 14. ADC Filter Response ................................................................................................... 24
Figure 15. ADC Passband Ripplee ............................................................................................... 24
Figure 16. ADC Transition Band ................................................................................................... 24
Figure 17. DAC Filter Response ................................................................................................... 24
Figure 18. DAC Passband Ripple ................................................................................................. 24
Figure 19. DAC Transition Band ................................................................................................... 24
4.6 Control Port Interface ...................................................................................................... 21
4.7 De-Emphasis ................................................................................................................... 22
4.8 Power-up / Reset / Power Down / Calibration ................................................................. 23
4.9 Power Supply, Layout and Grounding ............................................................................. 23
4.10 ADC and DAC Filter Response Plots ............................................................................ 24
5. Memory Address Pointer (MAP) ......................................................................................... 25
5. Reserved Byte (0)............................................................................................................... 25
5. ADC Control Byte (1) .......................................................................................................... 25
5. DAC Control Byte (2) .......................................................................................................... 26
5. Output Attenuator Data Byte (3, 4) ..................................................................................... 26
5. DSP Port Mode Byte (5) ..................................................................................................... 27
5. Converter Status Report Byte (Read Only) (6) ................................................................... 27
4.6.1 SPI Mode ............................................................................................................ 21
4.6.2 I
4.6.3 Control Port Bit Definitions .................................................................................. 22
2
C Mode ............................................................................................................. 22
2
C mode ..................................................................................... 22
CS4222
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