CS42L55-CNZ集成电路（IC）的编解码器规格书PDF中文资料

CS42L55-CNZ属于集成电路（IC）的编解码器。由凌云逻辑制造生产的CS42L55-CNZ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 CS42L55 is a highly integrated, 24-bit, ultra-low power stereo CODEC based on multi-bit delta-sigma modulation. Both the ADC and DAC offer many features suitable for low power portable system applications.

DIGITAL to ANALOG FEATURES

♦ 5 mW Stereo Playback Power Consumption

♦ 99 dB Dynamic Range (A-wtd)

♦ -86 dB THD+N

♦ Digital Signal Processing Engine

– Bass & Treble Tone Control, De-Emphasis

– Master Volume Control (+12 to -102 dB in 0.5 dB steps)

– Soft-Ramp & Zero-Cross Transitions

– Programmable Peak-Detect and Limiter

– Beep Generator w/Full Tone Control

ANALOG to DIGITAL FEATURES

♦ 3.5 mW Stereo Record Power Consumption

♦ 95 dB Dynamic Range (A-wtd)

♦ -87 dB THD+N

♦ 2:1 Stereo Input MUX

♦ Analog Programmable Gain Amplifier (PGA) (+12 to -6 dB in 0.5 dB steps)

♦ +20 dB Boost

♦ Programmable Automatic Level Control (ALC)

– Noise Gate for Noise Suppression

– Programmable Threshold & Attack/Release Rates

♦ Independent ADC Channel Control

♦ Digital Vol. Ctl. (0 to -96 dB in 1 dB steps)

♦ High-Pass Filter Disable for DC Measurements

♦ Pseudo Differential Inputs

Stereo Headphone and Line Amplifiers

♦ Step-Down/Inverting Charge Pump

♦ Class H Amplifier - Automatic Supply Adj.

– High Efficiency

– Low EMI

♦ Pseudo-Differential Ground-Centered Outputs

♦ High HP Power Output at -75 dB THD+N

– 2 x 20 mW Into 32 Ω @1.8 V

– 2 x 20 mW Into 16 Ω @1.8 V

♦ 1 VRMS Line Output @1.8 V

♦ Analog Vol. Ctl. (+12 to -55 dB in 1 dB steps)

♦ Analog In to Analog Out Passthrough

♦ Pop and Click Suppression

APPLICATIONS

♦ HDD & Flash-Based Portable Audio Players

♦ MD Players/Recorders

♦ PDAs

♦ Personal Media Players

♦ Portable Game Consoles

♦ Digital Voice Recorders

♦ Digital Camcorders

♦ Digital Cameras

♦ Smart Phones