Cirrus Logic CS4221 User Manual
Page 2

CS4220 CS4221
2
DS284PP3
TABLE OF CONTENTS
ANALOG CHARACTERISTICS ............................................................................................... 4
ABSOLUTE MAXIMUM RATINGS .......................................................................................... 6
RECOMMENDED OPERATING CONDITIONS ...................................................................... 6
SWITCHING CHARACTERISTICS ......................................................................................... 7
SWITCHING CHARACTERISTICS - CONTROL PORT - SPI MODE (CS4221) .................... 8
SWITCHING CHARACTERISTICS - CONTROL PORT - I
C MODE (CS4221) ..................... 9
2. TYPICAL CONNECTION DIAGRAM — CS4220 ................................................................... 10
3. TYPICAL CONNECTION DIAGRAM — CS4221 ................................................................... 11
4. REGISTER QUICK REFERENCE - CS4221 .......................................................................... 12
5. REGISTER DESCRIPTIONS - CS4221 .................................................................................. 13
5.1.1 Power Down ADC (PDN) ....................................................................................... 13
5.1.2 Left and Right channel High Pass Filter Defeat (HPDR-HPDL) ............................. 13
5.1.3 Left and Right Channel ADC Muting (ADMR-ADML) ............................................. 13
5.1.4 Calibration Control (CAL) ....................................................................................... 13
5.1.5 Calibration Status (CALP) (Read Only) .................................................................. 13
5.1.6 Clocking Error (CLKE) (Read Only) ....................................................................... 14
5.2.1 Mute on Consecutive Zeros (MUTC) ...................................................................... 14
5.2.2 Mute Control (MUTR-MUTL) .................................................................................. 14
5.2.3 Soft RAMP Control (SOFT) .................................................................................... 14
5.2.4 Soft RAMP Step Rate (RMP) ................................................................................. 15
Contacting Cirrus Logic Support
For a complete listing of Direct Sales, Distributor, and Sales Representative contacts, visit the Cirrus Logic web site at:
http://www.cirrus.com/corporate/contacts/
I2C is a registered trademark of Philips Semiconductor.
SPI is a registered trademark of International Business Machines Corporation.
Preliminary product information describes products which are in production, but for which full characterization data is not yet available. Advance product infor-
mation describes products which are in development and subject to development changes. Cirrus Logic, Inc. has made best efforts to ensure that the infor-
mation contained in this document is accurate and reliable. However, the information is subject to change without notice and is provided “AS IS” without
warranty of any kind (express or implied). No responsibility is assumed by Cirrus Logic, Inc. for the use of this information, nor for infringements of patents or
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