CS4245集成电路（IC）的编解码器规格书PDF中文资料

CS4245属于集成电路（IC）的编解码器。由凌云逻辑制造生产的CS4245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。

General Description

The CS4245 is a highly integrated stereo audio CODEC. The CS4245 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 192 kHz.

D/A Features

♦ Multi-bit Delta Sigma Modulator

♦ 104 dB Dynamic Range

♦ -90 dB THD+N

♦ Up to 192 kHz Sampling Rates

♦ Single-Ended Analog Architecture

♦ Volume Control with Soft Ramp

– 0.5 dB Step Size

– Zero Crossing, Click-Free Transitions

♦ Popguard® Technology

– Minimizes the Effects of Output Transients

♦ Filtered Line-Level Outputs

♦ Selectable Serial Audio Interface Formats

– Left-Justified up to 24-bit

– I²S up to 24-bit

– Right-Justified 16-, 18-, 20-, and 24-bit

♦ Selectable 50/15 µs De-Emphasis

♦ Control Output for External Muting

A/D Features

♦ Multi-bit Delta Sigma Modulator

♦ 104 dB Dynamic Range

♦ -95 dB THD+N

♦ Stereo 6:1 Input Multiplexer

♦ Programmable Gain Amplifier (PGA)

– ± 12 dB Gain, 0.5 dB Step Size

– Zero Crossing, Click-Free Transitions

♦ Stereo Microphone Inputs

– +32 dB Gain Stage

– Low-Noise Bias Supply

♦ Up to 192 kHz Sampling Rates

♦ Selectable Serial Audio Interface Formats

– Left-Justified up to 24-bit

– I²S up to 24-bit

♦ High-Pass Filter or DC Offset Calibration

System Features

♦ Direct Interface with 1.8 V to 5 V Logic Levels

♦ Optional Asynchronous Serial Port Operation

– Each Serial Port Supports Master or Slave Operation

♦ Selectable Auxiliary Analog Output

– Allows Analog Monitoring of Either the ADC Input Signal after PGA or DAC Output Signal

♦ Internal Digital Loopback

♦ Power-Down Mode

– Available for A/D, D/A, CODEC, Mic Preamplifier

♦ +3.3 V to +5 V Analog Power Supply

♦ +3.3 V to +5 V Digital Power Supply

♦ Supports I²C® and SPITM Control Port Interfaces

♦ Pin-Compatible with CS5345