| 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) | 26 |
| 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 and Output
- 25 W Into an 8-Ω Load From a 20-V Supply
- Wide PVDD Range, From 8 V to 26 V
- Supports BTL Configuration With 4-Ω Load
- Efficient Class-D Operation Eliminates Need for Heatsinks
- One Serial Audio Input (Two Audio Channels)
- I2C Address Selection Pin (Chip Select)
- Single Output Filter PBTL Support
- Supports 44.1-kHz to 48-kHz Sample Rate (LJ/RJ/I2S)
- Audio and PWM Processing
- Independent Channel Volume Controls With Gain of 24 dB to Mute With 0.125-dB Resolution Steps
- Programmable Two-Band Dynamic-Range Control
- 18 Programmable Biquads for Speaker EQ and Other Audio-Processing Features
- Programmable Coefficients for DRC Filters
- DC Blocking Filters
- General Features
- I2C Serial Control Interface Operational Without MCLK
- Requires Only 3.3 V and PVDD
- No External Oscillator: Internal Oscillator for Automatic Rate Detection
- Surface-Mount, 48-Pin HTQFP Package
- Thermal and Short-Circuit Protection
- 106-dB SNR, A-Weighted
- AD, BD, and Ternary Modulation
- Up to 90% Efficient
- PWM Level Meter to Measure the Digital Power Profile
- Benefits
- EQ: Speaker Equalization Improves Audio Performance
- Two-Band DRC: Dynamic Range Compression. Can Be Used As Power Limiter. Enables Speaker Protection, Easy Listening, Night-Mode Listening
- Autodetect: Automatically Detects Sample-Rate Changes. No Need for External Microprocessor Intervention
The TAS5727 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 TAS5727 is a slave-only device receiving all clocks from external sources. The TAS5727 operates with a PWM carrier between a 384-kHz switching rate and a 288-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.
