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CS8420 Fiches technique(PDF) 2 Page - Cirrus Logic

No de pièce CS8420
Description  DIGITAL AUDIO SAMPLE RATE CONVERTER
Download  94 Pages
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Fabricant  CIRRUS [Cirrus Logic]
Site Internet  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

CS8420 Fiches technique(HTML) 2 Page - Cirrus Logic

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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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