20-Bit Stereo Audio Codec with Volume Control following informati

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20-Bit Stereo Audio Codec with Volume Control following informati

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CS4222
20-Bit Stereo Audio Codec with Volume Control
following information based technical datasheet:
CS4222 DS236PP3 Please contact Cirrus Logic: Crystal Semiconductor Products Division further product information.
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Copyright Cirrus Logic, Inc. 1998 (All Rights Reserved)
PI236PP1
CS4222
Features
20-Bit Stereo Audio Codec with Volume Control
Features
20-bit Converters 20-bit Converters Signal-to-Noise Ratio (EIAJ) Analog Volume Control
Step Resolution 113.5 Attenuation Soft Mute Capability
Differential Inputs/Outputs On-chip Anti-aliasing Output Smoothing Filters De-emphasis 44.1 48kHz Stand-Alone Control Port Mode Single power supply
Description
CS4222 highly integrated, high performance, 20-bit, audio codec providing stereo analog-to-digital stereo digital-to-analog converters using delta-sigma conversion techniques. device operates from single power supply, features power consumption. Selectable de-emphasis filter 44.1, sample rates also included. CS4222 also includes analog volume control capable 113.5 attenuation resolution. analog volume control architecture preserves dynamic range during attenuation. Volume control changes implemented using "soft" ramping zero crossing technique. Applications include reverb processors, musical instruments, DAT, multitrack recorders.
PI236PP1
CS4222
Overview
SCL/CCLK SDA/CDIN
AD0/CS
SMUTE
MCLK
DEM1 DEM0
Control Port
Voltage Reference Left Volume Control Analog Pass Output Stage AOUTL+ AOUTL-
LRCK SCLK SDIN SDOUT
Serial Audio Data Interface
Digital Filters with De-Emphasis
Right Left
Volume Control
AOUTR+ AOUTRAINLAINL+
Digital Filters
Right
AINRAINR+
DGND
AGND
Overview
CS4222 channels 20-bit analog-to-digital conversion channels 20-bit digital-to-analog conversion. ADCs DACs deltasigma converters. outputs have adjustable output attenuation implemented step resolution. device also includes soft mute function digital de-emphasis 44.1, kHz. Digital audio data DACs from ADCs communicated over separate serial ports. This allows concurrent writing reading from device. Control functions available CS4222 communicated over serial microcontroller interface.
PI236PP1
CS4222
FAQs FAQs
does CS4222 implement analog volume control instead digital volume control? Analog volume control allows preserve system dynamic range. audio signal attenuated, noise floor also attenuated same amount. Thus, dynamic range preserved during attenuation. Does CS4222 have used with microcontroller? CS4222 operated stand-alone mode microcontroller mode. When using device with microcontroller, additional features accessed through control port, such volume control, input level monitoring, volume control ramp rate, etc. De-emphasis soft mute offered stand-alone mode. What does term "soft volume control" mean? When user writes volume control setting, CS4222 ramps from volume setting volume setting steps. This approach audibly superior single large volume control change which result audible "click" "pop". rate which this ramp occurs different settings through register control port. This same approach used when muting outputs.
Ordering Information
CS4222-KS SSOP, CDB4222 Evaluation Board further information Crystal products, please visit website "www.crystal.com" call literature department (800) 888-5016 ext. 3594 (512) 912-3594 data sheets application notes.
PI236PP1
CS4222
PI236PP1
Sales Office Applications Support
UNITED STATES Sales Office Applications Support: WESTERN AREA Cirrus Logic Crystal Semiconductor Div. Airport Pkwy. Jose, 95110 408-437-7743 FAX: 408-437-4943
Cirrus Logic Crystal Semiconductor Div. Venture, Ste. Irvine, 92718 714-453-5910 FAX: 714-453-5914
EUROPE Sales Office Applications Support:
Cirrus Logic France Immeuble Andre Malraux 93561 Rosny Bois CEDEX, France +33(148)122812 FAX: +33(148)122810 Cirrus Logic Crystal Semiconductor (UK) Ltd. Spectrum Point, Farnborough Rd., Farnborough, Hampshire GU14 7LS, United Kingdom +44(0)1252372762 FAX: +44(0)1252372763 Cirrus Logic GmbH Muehlfelder-Strasse D-82211 Herrsching, Germany +49(08152)92460 FAX: +49(08152)924699
KOREA Cirrus Logic, Korea Co., Ltd. 1302 SangKyung Bldg., 82421 YeokSam-Dong, KangNam-Ku, Seoul, Korea +82(2)565-8561 FAX: +82(2)565-8565 SINGAPORE Cirrus Logic Crystal International Kaki Bukit Ave. Ste. 03-03 Singapore 417940 +65-743-4111 FAX: +65-742-4111 TAIWAN Cirrus Logic International Ltd. Taiwan Branch 10F, No.214 North Taipei, Taiwan R.O.C. +886(2)2718-4533 FAX: +886(2)2718-4526
CENTRAL AREA Cirrus Logic Crystal Semiconductor Div. 14205 Burnet Rd., Ste. Austin, 78728 512-255-8893 FAX: 512-255-0733 EASTERN AREA Cirrus Logic Crystal Semiconductor Div. 5511 Capital Center Dr., Ste. Raleigh, 27606 919-859-5393 FAX: 919-859-5334
Cirrus Logic England Business Center, Ste. Andover, 01810 978-794-9138 FAX: 978-794-9998 Cirrus Logic Crystal Semiconductor Div. 10440 Little Patuxent Pkwy., Ste. Columbia, 21044-3559 410-740-5654 FAX: 410-740-6961
JAPAN EAST Sales Office Applications Support: CHINA Cirrus Logic International Ltd. A-1403, Qiancun Commercial Mansion Beijing, China 100029 (8610)6443-0783 (8610)6443-0784 (8610)6443-0785 FAX: (8610)6443-0786 HONG KONG Cirrus Logic International Ltd. 1203 Park Tower Austin Rd., Tsimshatsui Kowloon, Hong Kong (852)2376-0801 FAX: (852)2375-1202 Sales Office Applications Support: Cirrus Logic K.K. Shinjuku Green Tower, Bldg. 6-14-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo, Japan +81(03)3340-9111 FAX: +81(03)3340-9120
CRYSTAL SEMICONDUCTOR PRODUCTS DIVISION 17847 4210 INDUSTRIAL DRIVE AUSTIN, TEXAS 78744 512.445.7222 800.888.5016 FAX: 512.445.7581 WORLDWIDE WEB: http://www.crystal.com

20-Bit Stereo Audio Codec with Volume Control following informati

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