TAS5754M中文资料40W 立体声、61W 单声道、4.5V 至 26.4V 电源电压、数字输入 D 类音频放大器数据手册TI规格书

描述 Description

The TAS5754M device is a high-performance, stereo closed-loop amplifier withintegrated audio processor with PurePath™ HybridFlow architecture. To convertfrom digital to analog, it uses a high performance DAC with Burr-Brown mixedsignal heritage. It requires only two power supplies: one DVDD for low-voltagecircuitry and one PVDD for high-voltage circuitry. It is controlled via asoftware control port using standard I²C communication. In the family, theTAS5756M uses traditional BD modulation, ensuring low distortioncharacteristics. The TAS5754M uses 1SPW modulation, reducing the idle currentdraw at the expense of slightly higher distortion. The unique HybridFlow architecture allows the system designer to choose fromseveral configurable DSP programs, specifically designed for use in popularaudio end equipment like Bluetooth (BT) Speakers, Sound Bars, Docking Stations,Subwoofers. This combines the flexibility of a fully programmable device withthe fast download time and ease of use of a fixed function ROM device. An optimal mix of thermal performance and device cost is provided in the 90mΩ rDS(ON) of the output MOSFETs. Additionally, a thermally enhanced48-Terminal TSSOP provides excellent operation in the elevated ambienttemperatures found in modern consumer electronic devices.For all available

特性 Features

• Flexible Audio I/O Configuration
• Supports I²S, TDM, LJ, RJ Digital Input
• 8 kHz to 192 kHz Sample Rate Support
• Stereo Bridge Tied Load (BTL) or Mono Parallel Bridge Tied Load (PBTL) Operation
• BD Modulation with TAS5756M, 1SPW Modulation with TAS5754M
• Supports 3-Wire Digital Audio Interface (No MCLK required)

• High Performance Closed-Loop Architecture (PVDD = 12V, RSPK = 8 Ω, SPK_GAIN = 20dBV)
• Idle Channel Noise = 62 µVrms (A-Wtd)
• THD+N = 0.007 % (at 1 W, 1 kHz)
• SNR = 103 A-Wtd (Ref. to THD+N = 1%)

• PurePath HybridFlow Processing Architecture
• Several Configurable MiniDSP Programs (called HybridFlows)
• Download Time
• Communication Features
• Software Mode Control via I²C Port
• Two Address Select Pins – Up to 4 Devices

• Robustness and Reliability Features
• Clock Error, DC, and Short-Circuit Protection
• Over Temperature and Overcurrent Protection