TI TAS5086DBTR

МодуляторЦифровые аудиоинтерфейсы6I²C, I²S3 В ~ 3,6 В

Overview

The TAS5086DBTR is a six-channel digital pulse-width modulator (PWM) that provides both advanced performance and a high level of system integration. The TAS5086DBTR is designed to interface seamlessly with most audio digital signal processors and MPEG decoders, accepting a wide range of input data and clock formats. The TAS5086DBTR drives six channels of speakers in either single-ended or bridge-tied load configurations that accept a 1N + 1 interface format. The TAS5086DBTR also supports 2N + 1 power stages with the use of some external logic (e.g., TAS5112). Stereo line out in I 2 S format is available with either a pass-through signal (SDIN4) or an internal downmix. The TAS5086DBTR uses AD modulation operating at a 384-kHz switching rate for 32-, 44.1-, 48-, 88.2-, 96-, 176.4-, and 192-kHz data. The 8× oversampling, combined with the 4th-order noise shaper, provides a broad, flat noise floor and excellent dynamic range from 20 Hz to 20 kHz. The TAS5086DBTR is only an I 2 C slave device, which always receives MCLK, SCLK, and LRCLK from other system components. The TAS5086DBTR accepts clock rates of 128, 192, 256, 384, and 512 fS. The TAS5086DBTR accepts a 64-fS master clock for 176.4-kHz and 192-kHz data. The TAS5086DBTR accepts a 64-fS bit clock for all data rates. The TAS5086DBTR also can accept a 48-fS SCLK rate for MCLK ratios of 192 fS and 384 fS. 

-Full Six-Channel Input and Output Mapping -Selectable DC Blocking Filters · PWM Processing -8xOversampling With Fourth-Order Noise Shaping at 44.1,48 kHz;4x Oversampling at 88.2,96 kHz;2xOversampling at 176.4,   192 kHz; and 12x Oversampling at 32 kHz -2105-dB Dynamic Range (TAS5086+TAS5186) -THD<0.06%(TAS5086DBTR Only) -20-Hz-20-kHz Flat Noise Floor for 44.1-,48-, 88.2,96-,176.4-and 192-kHz Data Rates -Digital De-Emphasis for 32-kHz,44.1-kHz and 48-kHz Data Rates -Intelligent AM Interference Avoidance System Provides Clear AM Reception -Optimized PWM Sequence for Click-and Popless Start and Stop -Optimized PWM Sequence for Charging of AC-Coupling Capacitors in Single-Ended Configurations -Adjustable Modulation Limit From 93.8% to 99.2% · General Features -Automated Operation With Easy-to-Use Control Interface -IPC Serial Control Slave Interface -Control Interface Operational Without MCLK -Single 3.3-V Power Supply -38-Pin TSSOP Package

Features

Applications

• Consumer electronics
• AV/DVD Receiver, AV Amplifier
• Car or Mobile Audio System
• Digital Television
• Musical Instruments
• Recording Systems
• High-End Audio/Sound Card for PC
• Replacement of DIR1703
• Other Applications Requiring S/PDIF Receiver
• Audio Differential Line Drivers