ATS2805A Datasheet PDF – Wireless Digital Audio Chip

Part Number:  ATS2805A

Function: Highly integated single-chip Buletooth audio device.

Package: QFPN-56 (7x7mm)

Manufacturer: Actions Semiconductor ( http://www.actions-semi.com )

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ATS2805A image

Description

ACTIONS ATS2805A is a new generation single-chip highly-integrated digital audio solution. It is a low-cost, low-power, high-efficiency digital audio chip which is based on MIPS low power processor architecture with hardware accelerator. It is designed for portable audio product applications such as dedicated audio player, Bluetooth&FM player etc.

The ATS2805 includes an audio decoder with embedded RAM and ROM, ADPCM record capabilities and USB interface for downloading music and uploading voice recordings. ATS2805A also provides an interface to SPI Nor flash memory, SD/MMC card, LED/LCD, button and switch inputs, headphones, and microphone, and FM radio input and control, Bluetooth Player. Its embedded audio codec supports almost all digital audio standards, it can act as a USB mass storage slave device to personal computer system.

The ATS-2805A has low power consumption to allow long battery life, Embedded VCC&VDD LDO and supports Li-on battery only. The built-in Sigma-Delta D/A includes a headphone driver to directly drive low impedance headphone. The A/D includes inputs for both Microphone and Analog Audio in to support voice recording, Bluetooth and FM radio integration features. Thus, it provides a true ’ALL-IN-ONE’ solution that is ideally suited for highly optimized digital audio players.

Features

  • Supports MP3, APE, and FLAC audio decoding
  • Bluetooth stereo music playback through A2DP
  • Bluetooth hands-free operation through HFP
  • Bluetooth wireless control through AVRCP
  • Supports additional Bluetooth control protocols
  • High-quality echo cancellation
  • Noise cancellation algorithms
  • Built-in ADPCM encoder for audio recording
  • High-performance USB interface

Applications

  • Bluetooth speakers
  • Stereo Bluetooth headphones
  • Portable audio players
  • Wireless audio systems
  • USB audio devices
  • USB sound cards
  • Digital voice and audio recorders
  • Portable multimedia equipment
  • SD/MMC audio players
  • Hands-free Bluetooth audio systems
  • Compact consumer electronics

ATS2805A Datasheet

STK412-430 Datasheet PDF – Audio Power Amplifier

Part Number: STK412-430

Function: Two-Channel Shift Power Supply Audio Power Amplifier ICs 150W + 150 W

Package: SIP 18 Pin Type

Manufacturer: SANYO (Panasonic)

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STK412-430 image

Description

The STK412-430 series are class H audio power amplifier hybrid ICs that feature a built-in shift power  upply circuit. These Provide ICs high efficiency audio power amplification by controlling (switching) the supply voltage supplied to the power transistors according to the detected level of the input audio signal.

1. Pin compatible IC series that covers power ratings from 50 W × 2 channels to 180 W × 2 channels at 0.7 or 0.8% THD, 20 Hz to 20 kHz. This allows the use of a common PCB for all output classes.

2.  The pin arrangement is also unified with that of the three-channel STK413-000 series. This means that PCBs designed for three-channel models can also be used for two-channel models.

Reference Circuit : STK412-410

STK412-410 datasheet, pinout

Features

  • Class H amplification with dynamic supply voltage switching
  • High output power capability for stereo applications
  • Low total harmonic distortion for clean audio output
  • Low noise with high signal-to-noise ratio
  • Built-in thermal protection circuitry
  • Short-circuit and overload protection
  • Compact 18-pin SIP package for easy mounting

Typical Circuit Usage

  • Stereo power amplifier stages in hi-fi systems
  • Audio output stages in home theater receivers
  • High-power speaker driving circuits
  • Integrated amplifier designs for consumer electronics
  • Custom audio amplifier modules

How to Choose This Part

  • Choose for high-output stereo applications requiring efficient Class H topology
  • Suitable when compact hybrid modules simplify amplifier design
  • Ideal for designs needing integrated protection features
  • Consider thermal constraints and required output power levels
  • Verify compatibility with existing power supply architecture

Applications

  • Hi-Fi audio amplifiers
  • Home theater systems
  • High-power stereo systems
  • Professional audio equipment
  • Multimedia speaker systems

Alternative / Equivalent Products

  • STK412-410
  • STK412-440
  • STK404-130S
  • LM3886
  • TDA7294

Other data sheets are available within the file: STK350-000, STK350-010, STK350-020, STK350-030, STK350-040

STK412-430 Datasheet

STK412-430 pdf
STK412-430

STK412-150 Datasheet

STK412-430 pdf