TAS5508C中文资料8 通道 PWM 处理器数据手册TI规格书

描述 Description

The TAS5508C is an 8-channel digital pulse-width modulator (PWM) that provides both advanced performance and a high level of system integration. The TAS5508C is designed to interface seamlessly with most audio digital signal processors. The TAS5508C automatically adjusts control configurations in response to clock and data rate changes and idle conditions. This enables the TAS5508C to provide an easy-to-use control interface with relaxed timing requirements.
The TAS5508C can drive eight channels of H-bridge power stages. Texas Instruments H-bridge parts TAS5111, TAS5112, or TAS5182 with FETs are designed to work seamlessly with the TAS5508C. The TAS5508C supports both single-ended or bridge-tied load configurations. The TAS5508C also provides a high-performance, differential output to drive an external, differential-input, analog headphone amplifier (such as the TPA112).
The TAS5508C uses AD modulation operating at a 384-kHz switching rate for 48-, 96-, and 192-kHz data. The 8× oversampling combined with the fifth-order noise shaper provides a broad, flat noise floor and excellent dynamic range from 20 Hz to 20 kHz.
The TAS5508C is a clocked slave-only device. The TAS5508C receives MCLK, SCLK, and LRCLK from other system components. The TAS5508C accepts master clock rates of 128, 192, 256, 384, 512, and 768 Fs. The TAS5508C accepts a 64-Fs bit clock.
The TAS5508C allows for extending the dynamic range by providing a power-supply volume control (PSVC) output signal.

特性 Features

• General Features
• I2C Serial-Control Slave Interface
• Single, 3.3-V Power Supply
• 5-V Tolerant Inputs
• Eight Serial Audio Input Channels
• Line Output Is a PWM Output to Drive an External Differential-Input Operational Amplifier
• PWM Outputs Support Single-Ended and Bridge-Tied Loads
• Data Formats: 16-, 20-, or 24-Bit Left-Justified, I2S, or Right-Justified Input Data
• 128-, 192-, 256-, 384-, 512-, and 768-Fs Master Clock Rates (Up to a Maximum of 50 MHz)
• Volume Control Range 36 dB to –127 dB
• Eight Individual Channel Volume Control Ranges of 18 dB to –127 dB
• Four Bass and Treble Tone Controls with ±18-dB Range, Selectable Corner Frequencies, and Second-Order Slopes
• LS, RS
• Sub
• Two Dynamic Range Compressors With Two Thresholds, Two Offsets, and Three Slopes
• Full 8×8 Input Crossbar Mixer. Each Signal-Processing Channel Input Can Be Any Ratio of the Eight Input Channels.
• 8×3 Output Mixer – Channels 7 and 8. Each Output Can Be Any Ratio of Any Three Signal-Processed Channels.
• DC Blocking Filters
• PWM Processing
• 8× Oversampling With Fifth-Order Noise Shaping at 32 kHz–48 kHz, 4× Oversampling at 88.2 kHz and 96 kHz, and 2× Oversampling at 176.4 kHz and 192 kHz
• THD+N 176.4-, and 192-kHz Data Rates
• Flexible Automute Logic With Programmable Threshold and Duration for Noise-Free Operation
• Power-Supply Volume Control (PSVC) Support for Enhanced Dynamic Range in High-Performance Applications
• Adjustable Modulation Limit
PurePath Digital is a trademark of Texas Instruments. Matlab is a trademark of Math Works, Inc. All other trademarks are the property of their respective owners.

简介

TAS5508C属于集成电路（IC）的音频专用。由TI制造生产的TAS5508C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。