CS4224
CS4224 is 24-Bit 105 dB Audio Codec manufactured by Cirrus Logic.
Features
105 d B Dynamic Range A/D Converters 105 d B Dynamic Range D/A Converters 110 d B DAC Signal-to-Noise Ratio (EIAJ) Analog Volume Control (CS4224 only) Differential Inputs / Outputs On-chip Anti-aliasing and Output Smoothing Filters De-emphasis for 32, 44.1 and 48 k Hz Supports Master and Slave Modes Single +5 V power supply On-Chip Crystal Oscillator 3
- 5 V Digital Interface
Description
The CS4223/4 is a highly integrated, high performance, 24-bit, audio codec providing stereo analog-to-digital and stereo digital-to-analog converters using delta-sigma conversion techniques. The device operates from a single +5 V power supply, and features low power consumption. Selectable de-emphasis filter for 32, 44.1, and 48 k Hz sample rates is also included.
The CS4224 includes an analog volume control capable of 113.5 d B attenuation in 0.5 d B steps. The analog volume control architecture preserves dynamic range during attenuation. Volume control changes are implemented using a “soft” ramping or zero crossing technique.
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
(DIF1)
(DIF0) (DEM0) (DEM1)
SCL/CCLK SDA/CDIN AD0/CS I2C/SPI
VL MCLK VD VA
LRCK SCLK SDIN SDOUT
Serial Audio Data Interface
Control Port
Left DAC
Digital Filters with De-Emphasis
Right DAC
Digital Filters
Clock OSC
Left ADC
Right ADC
Volume
- Control
Voltage Reference
Volume
- Control
Analog Low Pass and Output Stage
AOUTL+ AOUTL-
AOUTR+ AOUTR-
AINLAINL+
AINRAINR+...