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Part Name(s) : LM4731 LM4731TA National-Semiconductor
National ->Texas Instruments
Description : STEREO 25W AUDIO POWER AMPLIFIER with Mute and Standby Modes View

General Description
The LM4731 is a STEREO AUDIO AMPLIFIER capable of delivering typically 25W per channel of continuous average output POWER into a 4Ω or 8Ω load with less than 10% THD+N from 20Hz - 20kHz.
Each AMPLIFIER has an independent smooth transition fade in/out mute and a POWER conserving standby mode which can be controlled by external logic.
The LM4731 has short circuit protection and a thermal shutdown feature that is activated when the die temperature exceeds 150˚C. The LM4731 also has a under voltage lockout feature for click and pop free POWER off and on.
The LM4731 has a wide operating supply range from +/-10V - +/-28V allowing for lower cost unregulated POWER supplies to be used.

Features
■ Minimal amount of external components necessary
■ Quiet fade-in/out mute mode
■ Low current Standby-mode

Applications
AUDIO AMPLIFIER for high-end STEREO TVs
AUDIO AMPLIFIER for component STEREO
AUDIO AMPLIFIER for compact STEREO
AUDIO AMPLIFIER for PC satellite speaker systems
AUDIO AMPLIFIER for self POWERed speakers

 

Part Name(s) : 7490 TDA7490 ST-Microelectronics
STMicroelectronics
Description : 25W + 25W STEREO CLASS-D AMPLIFIER 50W MONO IN BTL View

DESCRIPTION
The TDA7490 is a dual AUDIO class D AMPLIFIER assembled in Flexiwatt 25 package; it is specially designed for high efficiency application mainly for TV and Home STEREO sets.

25W + 25W OUTPUT POWER:
   RL = 8Ω/4Ω; THD = 10%
■ HIGH EFFICIENCY
■ WIDE SUPPLY VOLTAGE RANGE (FROM ±10 TO ±25V)
■ SPLIT SUPPLY
■ TURN OFF/ON POP FREE
■ ST-BY AND MUTE FEATURES
■ SHORT CIRCUIT PROTECTION ACROSS THE LOAD
■ THERMAL OVERLOAD PROTECTION
■ EXTERNALLY SINCHRONIZABLE
■ BRIDGE CONFIGURATION

Part Name(s) : TAS5101 TAS5101DAP TAS5101DAPR TAS5101IDAP TAS5101IDAPR TI
Texas Instruments
Description : TRUE DIGITAL STEREO AUDIO AMPLIFIER WITH PWM STEREO POWER OUTPUT STAGE View

DESCRIPTION
The TAS5101 is a high-performance true DIGITAL STEREO AUDIO AMPLIFIER (TDAA) POWER Stage, designed to drive 2 × 15 watts per channel. The TAS5101 incorporates TI’s equibit technology and is used in conjunction with a DIGITAL AUDIO PWM processor (TAS50xx) to deliver high-POWER, true DIGITAL AUDIO amplification.

FEATURES
● 2 × 15 W High-Quality DIGITAL AMPLIFIER POWER Stage
● Single-Ended Output
● >95-dB Dynamic Range (TDAA System)
● THD+N < 0.1% (1 kHz, 1 W to 15 W RMS Into 4 Ω)
POWER Efficiency > 90% Into 4-Ω to 8-Ω Load
● Low Profile, SMD 32-Pin POWERPAD Package Requires No Heat-Sink When Using Recommended Layout
● 2 × 15-W RMS Continuous POWER Into 4 Ω
● Self-Protecting Design
● 3.3-V DIGITAL Interface
● EMI Compliant When Used With Recommended System Design

APPLICATIONS
DIGITAL TV AUDIO AMPLIFIER
● Car AUDIO AMPLIFIERs and Head Units

Part Name(s) : LM4780 LM4780TA National-Semiconductor
National ->Texas Instruments
Description : Overture? AUDIO POWER AMPLIFIER Series STEREO 60W, Mono 120W AUDIO POWER AMPLIFIER with Mute View

General Description
The LM4780 is a STEREO AUDIO AMPLIFIER capable of typically delivering 60W per channel of continuous average output POWER into an 8Ω load with less than 0.5% THD+N from 20Hz - 20kHz.

Features
■ SPiKe Protection
■ Low external component count
■ Quiet fade-in/out mute mode
■ Wide supply range: 20V - 84V
■ Signal-to-Noise Ratio ≥ 97dB (ref. to PO = 1W)

Applications
AUDIO AMPLIFIER for component STEREO
AUDIO AMPLIFIER for compact STEREO
AUDIO AMPLIFIER for self-POWERed speakers
AUDIO AMPLIFIER for high-end and HD TVs


Part Name(s) : TDA7265 TDA7265G-J11-A-T TDA7265L-J11-A-T UTC
Unisonic Technologies
Description : 25W+25W STEREO AMPLIFIER WITH MUTE & STAND-BY View

DESCRIPTION
The UTC TDA7265 is a STEREO 25+25W class AB Dual AUDIO POWER AMPLIFIER with mute and ST-BY control. This IC provides high output POWER of 25 watts per channel (at VCC=±20V, f=1KHz, THD=10%, RL = 8 Ω). It has low IQ at stand-by mode and no POP at turn ON or OFF.

FEATURES
* High output POWER: POUT =25 W/channel (Typ.)
   VCC= ±20V, RL = 8Ω, f =1KHz, THD = 10%
* Operation supply voltage range (TA = 25°C)
   VCC(OPR) = ±5~±25V (RL = 8 Ω)
   VCC(OPR) = ±5~±18V (RL = 4 Ω)
* Split supply
* Built in overload protection circuit.
* Built in thermal shut down protector circuit.
* Built in AUDIO muting circuit (POP free)
* Built in standby circuit.

Part Name(s) : TAS5709 TAS5709A TAS5709AGPHP TAS5709AGPHPR TAS5709APHP TAS5709APHPR TAS5709PHP TAS5709PHPG4 TAS5709PHPR TAS5709PHPRG4 TI
Texas Instruments
Description : 20-W STEREO DIGITAL AUDIO POWER AMPLIFIER WITH EQ AND DRC View

DESCRIPTION
The TAS5709 is a 20-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.

 

Part Name(s) : DAC3101 TLV320DAC3101 TLV320DAC3101IRHBR TLV320DAC3101IRHBT TI
Texas Instruments
Description : Low-POWER STEREO AUDIO DAC With AUDIO Processing and STEREO Class-D Speaker AMPLIFIER View

Description
The TLV320DAC3101 is a low-POWER, highly integrated, high-performance DAC with selectable DIGITAL AUDIO processing blocks and 24-bit STEREO playback.
The device integrates headphone drivers and speaker drivers. The TLV320DAC3101 has a suite of built-in processing blocks for DIGITAL AUDIO processing. The DIGITAL AUDIO data format is programmable to work with popular AUDIO standard protocols (I2S, left/right-justified) in master, slave, DSP, and TDM modes. Bass boost, treble, or EQ can be supported by the programmable DIGITAL signal-processing block. An on-chip PLL provides the high-speed clock needed by the DIGITAL signal-processing block. The volume level can be controlled by either pin control or by register control. The AUDIO functions are controlled using the I2C serial bus.
The TLV320DAC3101 has a programmable DIGITAL sine-wave generator and is available in a 32-pin QFN package.

Features
STEREO AUDIO DAC With 95-dB SNR
• Supports 8-kHz to 192-kHz Sample Rates
STEREO 1.29-W Class-D BTL 8-Ω Speaker Driver With Direct Battery Connection
• 25 Built-In Processing Blocks (PRB_P1 – PRB_P25) Providing Biquad Filters, DRC, and 3D
DIGITAL Sine-Wave Generator for Beeps and Key-Clicks (PRB_P25)
• User-Programmable Biquad and FIR Filters
• Two Single-Ended Inputs With Mixing and Output Level Control
STEREO Headphone/Lineout and Class-D Speaker Outputs Available
• Microphone Bias
• Headphone Detection
DIGITAL Mixing Capability
• Pin Control or Register Control for DIGITAL-Playback Volume-Control Settings
• Programmable PLL for Flexible Clock Generation
• I2S, Left-Justified, Right-Justified, DSP, and TDM AUDIO Interfaces
• I2C Control With Register Auto-Increment
• Full POWER-Down Control
POWER Supplies:
   – Analog: 2.7 V–3.6 V
   – DIGITAL Core: 1.65 V–1.95 V
   – DIGITAL I/O: 1.1 V–3.6 V
   – Class-D: 2.7 V–5.5 V (SPLVDD and SPRVDD ≥ AVDD)
• 5-mm × 5-mm 32-QFN Package

Applications
• Portable AUDIO Devices
• Mobile Internet Devices
• e-Books

Part Name(s) : TA2024 Unspecified2
Unspecified
Description : STEREO 10W (4?) Class-T? DIGITAL AUDIO AMPLIFIER using DIGITAL POWER Processing? Technology View

[TRIPATH TECHNOLOGY, INC.]

General Description
The TA2024 is a 10W/ch continuous average two-channel Class-T DIGITAL AUDIO POWER AMPLIFIER IC using Tripath’s proprietary DIGITAL POWER Processing™ technology. Class-T AMPLIFIERs offer both the AUDIO fidelity of Class-AB and the POWER efficiency of Class-D AMPLIFIERs.

 

Part Name(s) : TA2024B Unspecified2
Unspecified
Description : STEREO 15W (4?) CLASS-T? DIGITAL AUDIO AMPLIFIER USING DIGITAL POWER PROCESSING? TECHNOLOGY View

[TRIPATH TECHNOLOGY, INC]


GENERAL DESCRIPTION
The TA2024B is a 15W/ch continuous average two-channel Class-T DIGITAL AUDIO POWER AMPLIFIER IC using Tripath’s proprietary DIGITAL POWER Processing™ technology. Class-T AMPLIFIERs offer both the AUDIO fidelity of Class-AB and the POWER efficiency of Class-D AMPLIFIERs.

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