General Description

The CS4270 is a high-performance, integrated audio CODEC. The CS4270 performs stereo analog-to-digital (A/D) and digital-to-analog (D/A) conversion of up to 24-bit serial values at sample rates up to 216 kHz. Standard 50/15 µs de-emphasis is available for sampling rates of 44.1 kHz for compatibility with digital audio programs mastered using the 50/15 µs pre-emphasis technique.

Integrated level translators allow easy interfacing be tween the CS4270 and other devices operating over a wide range of logic levels.

Independently addressable high-pass filters are available for the right and left channel of the A/D. This allows the A/D to be used in a wide variety of applications where one audio channel and one DC measurement channel is desired.

D/A Features

♦ High Performance

– 105 dB Dynamic Range

– -95 dB THD+N

♦ Selectable Serial Audio Interface Formats

– Left-Justified up to 24-bit

– I²S up to 24-bit

– Right-Justified 16-, and 24-Bit

♦ Control Output for External Muting

♦ On-Chip Digital De-Emphasis

♦ Popguard® Technology

♦ Multi-bit ∆Σ Conversion

♦ Digital Volume Control

♦ Single-Ended Output

A/D Features

♦ High Performance

– 105 dB Dynamic Range

– -95 dB THD+N

♦ Multi-bit ∆Σ Conversion

♦ High-Pass Filter to Remove DC Offsets

♦ Selectable Serial Audio Interface Formats

– Left-Justified up to 24-bit

– I²S up to 24-bit

♦ Single-Ended Input

System Features

♦ Direct Interface with Logic Levels 1.8 V to 5 V

♦ Internal Digital Loopback

♦ Stand-Alone or Control Port Functionality

♦ Single-Ended Analog Architecture

♦ Supports all Audio Sample Rates from 4 kHz to 216 kHz

♦ 3.3 V or 5 V Core Supply

Stand-Alone Mode Feature Set

♦ System Features

– Serial Audio Port Master or Slave Operation

– Single-, Double-, or Quad-Speed Operation

♦ D/A Features

– Auto-Mute on Static Samples

– 44.1 kHz 50/15 µs De-emphasis Available

– Selectable Serial Audio Interface Formats

• Left-Justified up to 24-bit

• I²S up to 24-bit

♦ A/D Features

– High-Pass Filter

– Selectable Serial Audio Interface Formats

• Left-Justified up to 24-bit

• I²S up to 24-bit

Software Mode Feature Set

♦ System Features

– Serial Audio Port Master or Slave Operation

– Internal Digital Loopback Available

♦ D/A Features

– Selectable Auto-mute

– 44.1-kHz De-emphasis Filters

– Configurable Muting Controls

– Volume Control

– Selectable Serial Audio Interface Formats

• Left-Justified up to 24-bit

• I²S up to 24-bit

• Right-Justified 16, and 24-bit

♦ A/D Features

– Selectable High-Pass Filter or DC Offset Calibration

– Selectable Serial Audio Interface Formats

• Left-Justified up to 24-bit

• I²S up to 24-bit

CS4270-CZZR属于集成电路（IC） > 编解码器。凌云逻辑制造生产的CS4270-CZZR编解码器编解码器是用于通过压缩和解压缩来转换数据的半导体器件。数据压缩可提高传输速度并减少存储空间。某些编解码器提供高达 32 位的分辨率，并且分别提供多达 6 个或 8 个模数转换器和数模转换器。除三角积分调制外，还有 I2C、I2S、SPI、串行、HDA、S/DIF、PCM、USB、AC'97 和 SLIMbus 数据接口。