Description
The CS4349 is a complete stereo digital-to-analog system including digital interpolation, 5th-order multi-bit delta-sigma digital-to-analog conversion, digital de-emphasis, volume control, channel mixing, and analog filtering. The advantages of this architecture include ideal linearity, no distortion mechanisms due to resistor matching errors, no linearity drift over time and temperature, tolerance to clock jitter, and a minimal set of external components.
The CS4349 supports all standard digital audio interface formats, including TDM.
The CS4349 is available in a 24-pin TSSOP package in both Commercial (-40° to +85°C) and Automotive grades (-40° to +105°C). The CDB4349 Customer Demonstration board is also available for device evaluation and imple mentation suggestions. Please refer to “Ordering Information” on page 40 for complete ordering information.
These features are ideal for cost-sensitive, two-channel audio systems, including DVD players and recorders, set top boxes, digital TVs, mini-component systems, musical instruments and automotive audio systems.

Features
♦ Advanced Multi-bit Delta-Sigma Architecture
♦ 101 dB Dynamic Range
♦ -91 dB THD+N at 5.0 V
♦ -84 dB THD+N at 3.3 V
♦ 24-Bit Conversion
♦ Supports Audio Sample Rates Up to 192 kHz
♦ Low-Latency Digital Filtering
♦ Single-Ended Analog Output Architecture
♦ Automatic Sample-Rate Range Detection
♦ Popguard® Technology for Control of Clicks and Pops
   – Hardware Popguard Disable for Fast Startups
♦ Supports All Standard Serial Audio Formats Including Time-Division Multiplexed (TDM)
♦ +3.3 V or +5.0 V Analog Supply
♦ +1.5 V to +5.0 V Logic Supplies for Serial Port
♦ +3.3 V to +5.0 V Control Port Interface

Control Port Mode Features
♦ SPI™ and I²C® Modes
♦ ATAPI Mixing
♦ Mute Control for Individual Channels
♦ Digital Volume Control with Soft Ramp
   – 127.5 dB Attenuation
   – 1/2 dB Step Size
   – Zero Crossing Click-Free Transitions