مدار مجتمع (آی سی) آی‌سی صوتی ویژه

TI TAS5548DCA

Manufacturer	TI
Mfr. Part Number	TAS5548DCA
Electland Part Code	171783
Electland Part Number	NYE_TAS5548DCA
Category	Audio Special Purpose
Description	Audio Modulator 8 Channel 56-HTSSOP
Datasheet	Download

Product Attributes

Category	Integrated Circuits (ICs) Audio Special Purpose
function	Modulator
Applications	Digital Audio Interfacing
Number of Channels	8
interface	I2C;I2S
Voltage - Supply	3V~3.6V
Operating Temperature	0℃~+85℃
specifications	32kHz ~ 192kHz
Mounting Type	Surface Mount
Package / Case	56-PowerTFSOP (0.240", 6.10mm Width)
Supplier Device Package	56-HTSSOP
type	Processor
Features	Asynchronous sample rate conversion;Multi-channel audio;Mute control;On-chip digital gain
Resolution (Bits)	32kHz~192kHz
Packaging	HTSSOP-56-6mm
Tariff Active	False
ReachStatus	REACH Unaffected
RohsStatus	ROHS3 Compliant
MoistureSensitivityLevel	3 (168 Hours)
ExportControlClassNumber	EAR99
HtsusCode	8542.39.0070
Weight	0.0005g

Introduction

TAS5548 is an 8-channel digital PWM modulator with digital audio processing and a sample rate converter, offering advanced performance and high system integration. The TAS5548 is designed to support DTS-HD specification Blu-ray HTiB applications. The ASRC contains two independent modules, each capable of processing 4 channels, enabling support for up to two different input sample rates. The power stage is 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. For 48, 96, and 192kHz data, the TAS5548 supports AD, BD, and tri-state modulation at a switching rate of 384kHz. An external crystal oscillator at 12.288MHz is required. The TAS5548 also features Power Supply Volume Control (PSVC), which increases the dynamic range of low-power stages and can serve as part of a Class G power supply when used with closed-loop PWM input power stages.

Features

8-channel asynchronous sample rate converter
8-channel audio processing at 32–192kHz (ASRC up to 96kHz)
4-channel native audio processing at 192kHz
30kHz audio bandwidth for DTS-HD compatibility
Energy manager for overall system power control
Power supply volume control
Up to 5 synchronous serial audio inputs (10 channels)
Up to 1 synchronous serial audio output (2 channels)
I2S master mode when used with external crystal oscillator
Controlled mode 32–192kHz with auto/manual sample rate detection
8 differential PWM outputs supporting AD or BD modulation
Two differential PWM headphone outputs
I2S support for external wireless sub PWM output, single-ended (S.E.) or bridge-tied load (BTL)
Volume control range: 18dB to −127dB (master and 8-channel volume)
Bass and treble tone control with ±18dB range and selectable corner frequency
Configurable loudness compensation
Two dynamic range compressors with two thresholds, two offsets, and three slopes
Seven second-order IIR biquad filters per channel
Dynamic range >105dB
THD+N <0.1% (0–40kHz)
20Hz–40kHz white noise reference for 32kHz–192kHz
Flexible auto logic with programmable threshold and noise-free operation duration
Power supply volume control (PSVC) for high-performance applications
Adjustable modulation limit