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Data sheet
TAS5558
- General Features
- 8ch Asynchronous Sample Rate Converter
- 8 Channel Audio Processing for 32-192 kHz
(ARSC to 96kHz) - 4 Channel Native Audio Processing at 192kHZ
- 30 kHz Audio Bandwidth for DTS-HD
Compatibility - Energy Manager for Overall System Power
Control - Power Supply Volume Control
- Audio Input or Output
- Up to Five Synchronous Serial Audio Inputs
(10 Channels) - Up to One Synchronous Serial Audio Outputs
(2 Channels) - Trimmed Internal Oscillator for Clock Auto
Detection and Limp Mode - Slave Mode 32-192KHz With Auto/Manual
Sample Rate Detection - Eight Differential PWM Output That can
Support AD or BD Modulation - Two Differential PWM Headphone Outputs
- I2S Out for External Wireless Sub
- PWM Output Supports Single Ended (S.E.) or
Bridge Tied Load (BTL)
- Up to Five Synchronous Serial Audio Inputs
- Audio Processing
- Volume Control Range 18 dB to –127 dB
(Master and Eight Channel Volume) - Bass and Treble Tone Controls With ±18-dB
Range, Selectable Corner Frequencies - Configurable Loudness Compensation
- Two Dynamic Range Compressors With Two
Thresholds, Two Offsets, and Three Slopes - Seven Biquads Per Channel
- Coefficient Banking and Auto Bank Switch
- Volume Control Range 18 dB to –127 dB
- PWM Processing
- >105-dB Dynamic Range
- THD+N < 0.1% (0–40 kHz)
- 20-Hz–40-kHz, Flat Noise Floor for 32KHz –
192KHz - Flexible Automute Logic With Programmable
Threshold and Duration for Noise-Free
Operation - Power-Supply Volume Control (PSVC) in High-
Performance Applications - Adjustable Modulation Limit
The TAS5558 is an 8-channel Digital Pulse Width Modulator (PWM) with Digital Audio Processing and Sample Rate Converter that provides both advanced performance and a high level of system integration. TAS5558 is designed to support DTS-HD specification Blu-ray HTiB applications. The ASRC consists of two separate modules which handle 4 channels each. Therefore, it is possible to support up to two different input sampling rates.
Texas Instruments Power Stages are designed to work seamlessly with the TAS5558. The TAS5558 also provides a high-performance, differential output to drive an external, differential-input, analog headphone amplifier.
The TAS5558 supports AD, BD, and ternary modulation operating at a 384-kHz switching rate for 48-, 96-, and 192-kHz data. The external crystal used must be 12.288 MHz. The TAS5558 also features power-supply-volume-control (PSVC), which improves dynamic range at lower power level and can be used as part of a Class G power supply when used with closed-loop PWM input power stages.
Technical documentation
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View all 1 | Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | TAS5558 8-Channel HD Compatible Audio Processor with ASRC and PWM Output datasheet (Rev. B) | PDF | HTML | 24 Apr 2015 |
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