Description
The TAS5715 is a 25-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 TAS5715 is a slave-only device receiving all clocks from external sources. The TAS5715 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.
- 25-W Into an 😯 Load From an 18-V Supply
- 50-W Support in PBTL Mode With 4O Load
- Wide PVDD Range, From 8 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)
- Headphone PWM Outputs
- Dedicated Pin for External Headphone-Amplifier Shutdown
- Single-Filter PBTL Support
- Independent Channel Volume Controls With 24-dB to Mute
- Independent Headphone Volume
- Programmable Two-Band Dynamic Range Control
- Up to Eight User-Programmable Biquads per Channel
- Programmable Coefficients for DRC Filters
- DC Blocking Filters and PWM DC Detect
- CRC Checksum to Detect Biquad CoefficientCorruption
- Serial Control Interface Operational Without MCLK
- Factory-Trimmed Internal Oscillator for Automatic Rate Detection
- Surface Mount, 48-Pin, 7-mm × 7-mm HTQFP Package
- Thermal and Short-Circuit Protection
- EQ: Speaker Equalization Improves Audio Performance
- DRC: Automatic Gain Limiter. Can Be Used As Power Limiter.
Enables Speaker Protection, Easy Listening - Two-Band DRC: Set Two Different Thresholds for Low- and
High-Frequency Content - Autobank Switching: Preload Coefficients for Different
Sample Rates. No Need to Write New Coefficients to the
Part When Sample Rate Changes - Autodetect: Automatically Detects Sample-Rate Changes.
No Need for External Microprocessor Intervention - Single-Filter PBTL Support Reduces BOM Cost
- Thgermal Dissipation, Improving System Stability
