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

CDB4349属于开发板，套件，编程器 > 评估板 - 数模转换器（DAC）。凌云逻辑制造生产的CDB4349评估板 - 数模转换器（DAC）该系列产品提供了一种方便的方法，在经过验证的设计环境中对用于将数字数据转换为模拟格式的器件进行性能或特性评估。重点器件涵盖范围从以适合学生或爱好者使用的方式实现的适度功能器件，到适合电信基础设施应用的高级器件。