CS8421-CNZ Cirrus Logic Inc, CS8421-CNZ Datasheet - Page 3

• Manufacturer Part Number: CS8421-CNZ
• Description: IC SAMPLE RATE CONVERTER 20QFN
• Manufacturer: Cirrus Logic Inc
• Type: Sample Rate Converterr

Specifications of CS8421-CNZ

• Package / Case: 20-QFN
• Applications: Digital Audio
• Mounting Type: Surface Mount
• Operating Supply Voltage: 3.3 V / 5.0 V
• Operating Temperature Range: - 10 C to + 70 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 598-1018 - BOARD EVAL FOR CS8421
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 598-1730

DS641F5
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
CS8421
3