CS8421 Cirrus Logic, CS8421 Datasheet - Page 3

• Manufacturer Part Number: CS8421
• Description: 32-bit 192 kHz Asynchronous Sample Rate Converter
• Manufacturer: Cirrus Logic

DS641F2
TABLE OF CONTENTS
1. PIN DESCRIPTIONS ............................................................................................................................ 6
2. CHARACTERISTICS AND SPECIFICATIONS ................................................................................... 10
3. TYPICAL CONNECTION DIAGRAMS ................................................................................................ 15
4. APPLICATIONS .................................................................................................................................. 17
5. PERFORMANCE PLOTS
6. PACKAGE DIMENSIONS ................................................................................................................... 34
7. ORDERING INFORMATION ............................................................................................................... 36
8. REVISION HISTORY .......................................................................................................................... 36
1.1 TSSOP Pin Descriptions ................................................................................................................ 6
1.2 QFN Pin Descriptions ..................................................................................................................... 8
SPECIFIED OPERATING CONDITIONS ............................................................................................ 10
ABSOLUTE MAXIMUM RATINGS ...................................................................................................... 10
PERFORMANCE SPECIFICATIONS.................................................................................................. 11
DIGITAL FILTER CHARACTERISTICS .............................................................................................. 12
DC ELECTRICAL CHARACTERISTICS ............................................................................................. 12
DIGITAL INPUT CHARACTERISTICS ................................................................................................ 13
DIGITAL INTERFACE SPECIFICATIONS .......................................................................................... 13
SWITCHING SPECIFICATIONS ......................................................................................................... 13
4.1 Three-wire Serial input/Output Audio Port .................................................................................... 17
4.2 Mode Selection ............................................................................................................................. 18
4.3 Sample Rate Converter (SRC) ..................................................................................................... 20
4.4 Time Division Multiplexing (TDM) Mode ....................................................................................... 22
4.5 Reset, Power-Down, and Start-Up ............................................................................................... 23
4.6 Power Supply, Grounding, and PCB Layout ................................................................................ 24
TSSOP THERMAL CHARACTERISTICS ........................................................................................... 34
QFN THERMAL CHARACTERISTICS ................................................................................................ 35
4.3.1 Data Resolution and Dither .............................................................................................. 20
4.3.2 SRC Locking and Varispeed ............................................................................................ 20
4.3.3 Bypass Mode ................................................................................................................... 20
4.3.4 Muting .............................................................................................................................. 21
4.3.5 Group Delay and Phase Matching Between Multiple CS8421 Parts ............................... 21
4.3.6 Master Clock .................................................................................................................... 21
4.3.7 Clocking ........................................................................................................................... 22
................................................................................................................ 25
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