TI TAS5751MDCAR

The TAS5751M device is a high-efficiency digital-input audio amplifier used to drive stereo speakers in a bridged-tied load (BTL) configuration. For parallel bridged-tied load (PBTL), the device can drive parallel outputs to a single low-impedance load, thereby generating higher power. A serial data input can handle up to two discrete audio channels and can be seamlessly integrated with most digital audio processors and MPEG decoders. This device can accept a wide range of input data and data transfer rates. A fully programmable data path routes these channels to the internal speaker drivers. The TAS5751M device is used only as a slave device to receive all externally provided clocks. The TAS5751M device uses a PWM carrier with a switching frequency between 288 kHz and 384 kHz, depending on the input sampling rate. Oversampling combined with a fourth-order noise shaper provides a white noise reference and excellent dynamic range from 20 Hz to 20 kHz.

• Single stereo serial audio input
• Supports 44.1kHz and 48kHz sample rates (LJ/RJ/I²S)
• Supports 3-wire I²S mode (no MCLK required)
• Automatic audio port rate detection
• Supports BTL and PBTL configurations
• POUT = 25W at 10% THD+N, PVDD = 20V, 8Ω, 1kHz
• Per-channel volume control, gain from mute to 24dB (0.125dB step size)
• Programmable 3-band automatic gain limiting (AGL)
• 20 programmable biquads for speaker EQ and other audio processing
• 106-dB SNR, A-weighted, referenced to full scale (0dB)
• I²C serial control interface with two addresses
• Thermal protection, short-circuit protection, and undervoltage protection
• Up to 90% efficiency
• AD, BD, and hybrid modulation
• PWM level metering

• LCD TV
• LED TV
• Low-cost audio equipment