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CS42428 Datasheet(PDF) 1 Page - Cirrus Logic |
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CS42428 Datasheet(HTML) 1 Page - Cirrus Logic |
1 / 73 page Copyright © Cirrus Logic, Inc. 2005 (All Rights Reserved) http://www.cirrus.com 114 dB, 192 kHz 8-Ch Codec with PLL Features ! Eight 24-bit D/A, two 24-bit A/D Converters ! 114 dB DAC / 114 dB ADC Dynamic Range ! -100 dB THD+N ! System Sampling Rates up to 192 kHz ! Integrated Low-Jitter PLL for Increased System Jitter Tolerance ! PLL Clock or System Clock Selection ! 7 Configurable General-Purpose Outputs ! ADC High-Pass Filter for DC Offset Calibration ! Expandable ADC Channels and One-Line Mode Support ! Digital Output Volume Control with Soft Ramp ! Digital +/-15 dB Input Gain Adjust for ADC ! Differential Analog Architecture ! Supports Logic Levels between 1.8 V and 5 V General Description The CS42428 codec provides two analog-to-digital and eight digital-to-analog delta-sigma converters, as well as an integrated PLL. The CS42428 integrated PLL provides a low-jitter sys- tem clock. The internal stereo ADC is capable of independent channel gain control for single-ended or differential analog inputs. All eight channels of DAC pro- vide digital volume control and differential analog outputs. The general-purpose outputs may be driven high or low, or mapped to a variety of DAC mute con- trols or ADC overflow indicators. The CS42428 is ideal for audio systems requiring wide dynamic range, negligible distortion and low noise, such as A/V receivers, DVD receivers, digital speaker and automotive audio systems. The CS42428 is available in a 64-pin LQFP package in both Commercial (-10° to 70° C) and Automotive (-40° to 85° C) grades. The CDB42428 Customer Dem- onstration board is also available for device evaluation. Refer to “Ordering Information” on page 71. PLL Internal Voltage Reference RST GPO1 AD0/CS SCL/CCLK SDA/CDOUT AD1/CDIN VLC AOUTA1+ AOUTA1- AOUTB1+ AOUTA3+ AOUTA3- AOUTA2- AOUTB2- AOUTA2+ AOUTB2+ AOUTB1- AOUTB3+ AOUTB3- AOUTA4+ AOUTA4- AOUTB4+ AOUTB4- AINL+ AINL- AINR+ AINR- FILT+ REFGND VQ ADC#1 ADC#2 Digital Filter Digital Filter Gain & Clip Gain & Clip DAC_SCLK DAC_LRCK DAC_SDIN4 DAC_SDIN3 DAC_SDIN2 DAC_SDIN1 VLS DGND VD OMCK RMCK LPFLT INT Control Port DAC#1 DAC#2 DAC#3 DAC#4 DAC#5 DAC#6 DAC#7 DAC#8 GPO2 GPO3 GPO4 GPO5 GPO6 GPO7 MUTEC Mute VA AGND Mult/Div GPO ADC_SDOUT ADCIN1 ADCIN2 ADC_LRCK ADC Serial Audio Port ADC_SCLK NOVEMBER '05 DS605F1 CS42428 |
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