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

CS4349-CZZR属于集成电路（IC） > ADC/DAC - 特殊用途。凌云逻辑制造生产的CS4349-CZZRADC/DAC - 特殊用途该产品族中的产品可用于模拟和数字表示的信息转换，适用于特定用例，或集成了通用数据转换器中不常见的其他功能。例如针对超声或汽车雷达应用集成了低噪声放大器和可变增益级的器件、注重音频和视频的产品、在段码式显示器上集成显示测量值功能的器件、集成输入输出电气隔离的器件等。