CS8421-CNZR集成电路（IC）的音频专用规格书PDF中文资料

CS8421-CNZR属于集成电路（IC）的音频专用。由凌云逻辑制造生产的CS8421-CNZR音频专用音频专用的半导体器件专为音频信号的滤波、驱动、放大、转换和接口而设计。特征包括功能、应用、通道数、接口、电压和规格。应用包括音频系统、汽车音频、消费类音频、乐器、专业音频、通信系统、电信系统、数字音频、驱动器、前置放大器、信号混合、信号处理、语音触发器解决方案和 10 Base-T。

General Description

The CS8421 is a 32-bit, high-performance, monolithic CMOS stereo asynchronous sample-rate converter.

Digital audio inputs and outputs can be 32, 24, 20, or 16 bits. Input and output data can be completely asynchronous, synchronous to an external data clock, or the part can operate without any external clock by using an integrated oscillator.

Audio data is input and output through configurable 3-wire input/output ports. The CS8421 does not require any soft ware control via a control port.

Target applications include digital recording systems (DVD-R/RW, CD-R/RW, PVR, DAT, MD, and VTR), digital mixing consoles, high-quality D/A, effects processors, computer audio systems, and automotive audio systems.

The CS8421 is also suitable for use as an asynchronous decimation or interpolation filter. See Cirrus Logic Application Note AN270, “Audio A/D Conversion with an Asynchronous Decimation Filter”, available at www.cirrus.com for more details.

特性 Features

♦ 175 dB Dynamic Range

♦ –140 dB THD+N

♦ No Programming Required

♦ No External Master Clock Required

♦ Supports Sample Rates up to 211 kHz

♦ Input/Output Sample Rate Ratios of 7.5:1 to 1:8

♦ Master Clock Support for 128 x Fs, 256 x Fs, 384 x Fs, and 512 x Fs (Master Mode)

♦ 16-, 20-, 24-, or 32-bit Data I/O

♦ 32-bit Internal Signal Processing

♦ Dither Automatically Applied and Scaled to Output Resolution

♦ Flexible 3-wire Serial Digital Audio Input and Output Ports

♦ Master and Slave Modes for Both Input and Output

♦ Bypass Mode

♦ Time Division Multiplexing (TDM) Mode

♦ Attenuates Clock Jitter

♦ Multiple Device Outputs are Phase Matched

♦ Linear Phase FIR Filter

♦ Automatic Soft Mute/Unmute

♦ +2.5 V Digital Supply (VD)

♦ +3.3 V or 5.0 V Digital Interface (VL)

♦ Space-saving 20-pin TSSOP and QFN Packages