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TAS5548DCA +BOM

Audio Processor Bass/Treble 0MHz to 400MHz 5-IN 1-OUT 56-Pin HTSSOP EP

Produttore:

Texas Instruments, Inc
ProduttorePart #:

TAS5548DCA
Scheda dati:

TAS5548DCA Scheda dati (PDF)
Function:

Modulator
Applications:

Digital Audio Interfacing
Number Of Channels:

8
Interface:

I²C, I²S
EDA/CAD Modelli:

Richiedi modelli CAD gratuiti per TAS5548DCA

TAS5548DCA Descrizione generale

The TAS5548 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. TAS5548 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 TAS5548. The TAS5548 also provides a high-performance, differential output to drive an external, differential-input, analog headphone amplifier.

The TAS5548 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 TAS5548 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.

Caratteristiche principali

General Features
8ch Asynchronous Sample Rate Converter
8 Channel Audio Processing for 32-192 kHz
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
Up to One Synchronous Serial Audio Outputs
I2S Master Mode When Used With External
Crystal
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)
Audio Processing
Volume Control Range 18 dB to –127 dB
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
PWM Processing
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

Specifiche

Category	Integrated Circuits (ICs)Audio Special Purpose	Series	-
Function	Modulator	Applications	Digital Audio Interfacing
Number of Channels	8	Interface	I²C, I²S
Voltage - Supply	3V ~ 3.6V	Operating Temperature	0°C ~ 85°C (TA)
Specifications	32kHz ~ 192kHz	Mounting Type	Surface Mount
Base Product Number	TAS5548

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