CS4223 CS4224 24-Bit 105 dB Audio Codec with Volume Control Features Description The CS4223/4 is a highly integrated, high performance, 105 dB Dynamic Range A/D Converters 24-bit, audio codec providing stereo analog-to-digital and 105 dB Dynamic Range D/A Converters stereo digital-to-analog converters using delta-sigma 110 dB DAC Signal-to-Noise Ratio (EIAJ) conversion techniques. The device operates from a sin- Analog Volume Control (CS4224 only) gle +5 V power supply, and features low power consumption. Selectable de-emphasis filter for 32, 44.1, Differential Inputs / Outputs and 48 kHz sample rates is also included. On-chip Anti-aliasing and Output Smoothing The CS4224 includes an analog volume control capable Filters of 113.5 dB attenuation in 0.5 dB steps. The analog vol- De-emphasis for 32, 44.1 and 48 kHz ume control architecture preserves dynamic range Supports Master and Slave Modes during attenuation. Volume control changes are imple- Single +5 V power supply mented using a soft ramping or zero crossing technique. On-Chip Crystal Oscillator 3-5VDigitalInterface Applications include digital effects processors, DAT, and multitrack recorders. ORDERING INFORMATION CS4223-KS -10 to +70 C 28-pin SSOP CS4223-BS -40 to +85 C 28-pin SSOP CS4223-DS -40 to +85 C 28-pin SSOP CS4224-KS -10 to +70 C 28-pin SSOP CDB4223/4 Evaluation Board I ( )( )( ) ( ) DIF1 DIF0 DEM0 DEM1 2 V L SCL/CCLK SDA/CDIN AD0/CS IC/SPI MCLK VD VA Voltage RST Control Port Reference * Left Volume AOUTL+ DAC Control AOUTL- LRCK Right * Volume AOUTR+ DAC SCLK Control AOUTR- SDIN Left AINL- ADC AINL+ SDOUT Right AINR- ADC AINR+ Clock OSC XTI XTO DGND AGND = CS4224 ( ) = CS4223 * Copyright Cirrus Logic, Inc. 2002 Cirrus Logic, Inc. JAN 03 (All Rights Reserved) CS4223 CS4224 TABLE OF CONTENTS 1. CHARACTERISTICS AND SPECIFICATIONS ........................................................................ 4 SPECIFIED OPERATING CONDITIONS ................................................................................. 4 ABSOLUTE MAXIMUM RATINGS ........................................................................................... 4 ANALOG CHARACTERISTICS................................................................................................ 5 SWITCHING CHARACTERISTICS .......................................................................................... 8 SWITCHING CHARACTERISTICS - CONTROL PORT - SPI MODE (CS4224) ..................... 9 2 SWITCHING CHARACTERISTICS - CONTROL PORT - I C MODE (CS4224) .................... 10 2. TYPICAL CONNECTION DIAGRAM CS4223 ................................................................... 11 3. TYPICAL CONNECTION DIAGRAM CS4224 ................................................................... 12 4. REGISTER QUICK REFERENCE - CS4224 .......................................................................... 13 5. REGISTER DESCRIPTIONS - CS4224 .................................................................................. 14 5.1 ADC Control (address 01h)............................................................................................... 14 5.1.1 Power Down ADC (PDN)............................................................................................... 14 5.1.2 Left and Right channel High Pass Filter Defeat (HPDR-HPDL)..................................... 14 5.1.3 Left and Right Channel ADC Muting (ADMR-ADML)..................................................... 14 5.1.4 Calibration Control (CAL)............................................................................................... 14 5.1.5 Calibration Status (CALP) (Read Only) ......................................................................... 14 5.1.6 Clocking Error (CLKE) (Read Only)............................................................................... 15 5.2 DAC Control (address 02h)............................................................................................... 15 5.2.1 Mute on Consecutive Zeros (MUTC) ............................................................................. 15 5.2.2 Mute Control (MUTR-MUTL).......................................................................................... 15 5.2.3 Soft RAMP Control (SOFT)............................................................................................ 15 5.2.4 Soft RAMP Step Rate (RMP)......................................................................................... 16 5.3 Left Channel Output Attenuator Level (address 03h) ....................................................... 16 5.4 Right Channel Output Attenuator Level (address 04h).................................................... 16 5.4.1 Attenuation level (ATT7-ATT0) ...................................................................................... 16 5.5 DSP Port Mode (address 05h).......................................................................................... 17 5.5.1 De-emphasis Control (DEM).......................................................................................... 17 5.5.2 Serial Input/Output Data SCLK Polarity Select (DSCK)................................................. 17 Contacting Cirrus Logic Support For a complete listing of Direct Sales, Distributor, and Sales Representative contacts, visit the Cirrus Logic web site at: