TAS5719数据手册开发板套件编程器的评估板-音频放大器规格书PDF

描述 Description

The TAS5717/TAS5719 is a 10-W/15-W, efficient, digital audio-power amplifier for driving stereo bridge-tied speakers. One serial data input allows processing of up to two discrete audio channels and seamless integration to most digital audio processors and MPEG decoders. The device accepts a wide range of input data and data rates. A fully programmable data path routes these channels to the internal speaker drivers. The TAS5717/9 is a slave-only device receiving all clocks from external sources. The TAS5717/TAS5719 operates with a PWM carrier between a 384-kHz switching rate and a 352-KHz switching rate, depending on the input sample rate. Oversampling combined with a fourth-order noise shaper provides a flat noise floor and excellent dynamic range from 20 Hz to 20 kHz.

特性 Features

• Audio Input/Output
• TAS5717 Supports 2×10 W and TAS5719 Supports 2×15 W Output
• Wide PVDD Range, From 4.5 V to 26 V
• Efficient Class-D Operation Eliminates Need for Heatsinks
• Requires Only 3.3 V and PVDD
• One Serial Audio Input (Two Audio Channels)
• I2C Address Selection via PIN (Chip Select)
• Supports 8-kHz to 48-kHz Sample Rate (LJ/RJ/I2S)
• External Headphone-Amplifier Shutdown Signal
• Integrated CAP-Free Headphone Amplifier
• Stereo Headphone (Stereo 2-V RMS Line Driver) Outputs

• Audio/PWM Processing
• Independent Channel Volume Controls With 24-dB to Mute
• Programmable Two-Band Dynamic Range Control
• 14 Programmable Biquads for Speaker EQ
• Programmable Coefficients for DRC Filters
• DC Blocking Filters
• 0.125-dB Fine Volume Support

• General Features
• Serial Control Interface Operational Without MCLK
• Factory-Trimmed Internal Oscillator for Automatic Rate Detection
• Surface Mount, 48-Pin, 7-mm × 7-mm HTQFP Package
• AD, BD, and Ternary PWM-Mode Support
• Thermal and Short-Circuit Protection

• Benefits
• EQ: Speaker Equalization Improves Audio Performance
• DRC: Dynamic Range Compression. Can Be Used As Power Limiter. Enables Speaker Protection, Easy Listening, Night-Mode Listening
• DirectPath Technology: Eliminates Bulky DC Blocking Capacitors
• Stereo Headphone/Stereo Line Drivers: Adjust Gain via External Resistors, Dedicated Active Headpone Mute Pin, High Signal-to-Noise Ratio
• Two-Band DRC: Set Two Different Thresholds for Low- and High-Frequency Content

FilterPro is a trademark of Texas Instruments.