| Audio input type | Digital Input |
| Architecture | Class-D |
| Speaker channels (Max) | Stereo |
| Power stage supply (Max) (V) | 26 |
| Power stage supply (Min) (V) | 8 |
| Load (Min) (ohms) | 4 |
| Output power (W) | 25 |
| SNR (dB) | 106 |
| THD + N @ 1 kHz (%) | 0.03 |
| Iq (Typ) (mA) | 31 |
| Control interface | Software |
| Closed/open loop | Open |
| Analog supply (Min) (V) | 3 |
| Analog supply (Max) (V) | 3.6 |
| Sampling rate (Max) (kHz) | 48 |
| Operating temperature range (C) | 0 to 85 |
- Audio Input/Output
- 25-W Into an 8-
Load From an 18-V Supply - 50-W Support in PBTL Mode With 4- 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
- 25-W Into an 8-
- Audio/PWM Processing
- 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 Coefficient Corruption
- 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
- Thermal and Short-Circuit Protection
- Benefits
- 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
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.
