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CS8420-DSZR Datasheet(PDF) 2 Page - Cirrus Logic |
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CS8420-DSZR Datasheet(HTML) 2 Page - Cirrus Logic |
2 / 94 page 2 DS245F4 CS8420 TABLE OF CONTENTS 1. CHARACTERISTICS AND SPECIFICATIONS ...................................................................................... 6 SPECIFIED OPERATING CONDITIONS .............................................................................................. 6 ABSOLUTE MAXIMUM RATINGS ........................................................................................................ 6 PERFORMANCE SPECIFICATIONS .................................................................................................... 7 DIGITAL FILTER CHARACTERISTICS .................................................................................................7 DC ELECTRICAL SPECIFICATIONS .................................................................................................... 7 DIGITAL INPUT CHARACTERISTICS ..................................................................................................8 DIGITAL INTERFACE SPECIFICATIONS ............................................................................................. 8 TRANSMITTER CHARACTERISTICS .................................................................................................. 8 SWITCHING CHARACTERISTICS ....................................................................................................... 8 SWITCHING CHARACTERISTICS - SERIAL AUDIO PORTS .............................................................. 9 SWITCHING CHARACTERISTICS - CONTROL PORT - SPI™ MODE ............................................. 10 SWITCHING CHARACTERISTICS - CONTROL PORT - I²C® MODE ............................................... 11 2. TYPICAL CONNECTION DIAGRAM ................................................................................................... 12 3. GENERAL DESCRIPTION ................................................................................................................... 13 4. DATA I/O FLOW AND CLOCKING OPTIONS ..................................................................................... 14 5. SAMPLE RATE CONVERTER (SRC) .................................................................................................. 18 5.1 Dither ............................................................................................................................................. 18 5.2 SRC Locking, Varispeed and the Sample Rate Ratio Register ..................................................... 18 6. THREE-WIRE SERIAL AUDIO PORTS ...............................................................................................19 7. AES3 TRANSMITTER AND RECEIVER .............................................................................................. 22 7.1 AES3 Receiver ............................................................................................................................... 22 7.1.1 PLL, Jitter Attenuation, and Varispeed .................................................................................. 22 7.1.2 OMCK Out On RMCK ........................................................................................................... 22 7.1.3 Error Reporting and Hold Function ........................................................................................22 7.1.4 Channel Status Data Handling .............................................................................................. 23 7.1.5 User Data Handling ............................................................................................................... 23 7.1.6 Non-Audio Auto Detection ..................................................................................................... 24 7.2 AES3 Transmitter ........................................................................................................................... 24 7.2.1 Transmitted Frame and Channel Status Boundary Timing ................................................... 24 7.2.2 TXN and TXP Drivers ............................................................................................................ 25 7.3 Mono Mode Operation ................................................................................................................... 25 8. AES3 TRANSMITTER AND RECEIVER .............................................................................................. 28 8.1 Sample Rate Converter ................................................................................................................. 28 8.2 Non-SRC Delay ............................................................................................................................. 29 9. CONTROL PORT DESCRIPTION AND TIMING ................................................................................. 30 9.1 SPI Mode ....................................................................................................................................... 30 9.2 I²C Mode ........................................................................................................................................ 31 9.3 Interrupts ........................................................................................................................................ 31 10. CONTROL PORT REGISTER BIT DEFINITIONS ............................................................................. 32 10.1 Memory Address Pointer (MAP) .................................................................................................. 32 10.2 Miscellaneous Control 1 (01h) ..................................................................................................... 34 10.3 Miscellaneous Control 2 (02h) ..................................................................................................... 35 10.4 Data Flow Control (03h) ............................................................................................................... 36 10.5 Clock Source Control (04h) .......................................................................................................... 37 10.6 Serial Audio Input Port Data Format (05h) ................................................................................... 38 10.7 Serial Audio Output Port Data Format (06h) ................................................................................39 10.8 Interrupt 1 Register Status (07h) (Read Only) .............................................................................40 10.9 Interrupt Register 2 Status (08h) (Read Only) .............................................................................41 10.10 Interrupt 1 Register Mask (09h) ................................................................................................. 41 10.11 Interrupt Register 1 Mode Registers MSB & LSB (0Ah,0Bh) ..................................................... 41 10.12 Interrupt 2 Register Mask (0Ch) ................................................................................................. 42 |
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