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NCP2809A - 135mW Stereo Headphone Power Amplifier

Download the NCP2809A datasheet PDF. This datasheet also covers the NCP2809 variant, as both devices belong to the same 135mw stereo headphone power amplifier family and are provided as variant models within a single manufacturer datasheet.

General Description

Negative input of the second amplifier.

It receives the audio input signal.

Key Features

  • 135 mW to a 16 W Load from a 5.0 V Power Supply.
  • Excellent PSRR (85 dB Typical): Direct Connection to the Battery.
  • “Pop and Click” Noise Protection Circuit.
  • Ultra Low Current Shutdown Mode.
  • 2.2 V.
  • 5.5 V Operation.
  • Outstanding Total Harmonics Distortion + Noise (THD+N): Less than 0.01%.
  • External Turn.
  • on and Turn.
  • off Configuration Capability.
  • Thermal Overload Protection Circuitry.
  • NCP2809B avai.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (NCP2809_ONSemiconductor.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number NCP2809A
Manufacturer onsemi
File Size 221.50 KB
Description 135mW Stereo Headphone Power Amplifier
Datasheet download datasheet NCP2809A Datasheet

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Other Datasheets by onsemi

Part Number Description
NCP2809B 135mW Stereo Headphone Power Amplifier
NCP2811 NOCAP Advanced Stereo Headphone Amplifier
NCP2815 LongPlay Headphone Amplifier
NCP2817 LongPlay Headphone Amplifier
NCP2820 2.65W Filterless Class-D Audio Power Amplifier

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
NCP2809 Series NOCAPt 135 mW Stereo Headphone Power Amplifier The NCP2809 is a cost−effective stereo audio power amplifier capable of delivering 135 mW of continuous average power per channel into 16 W loads. The NCP2809 audio power amplifier is specifically designed to provide high quality output power from low supply voltage, requiring very few external components. Since NCP2809 does not require bootstrap capacitors or snubber networks, it is optimally suited for low−power portable systems. NCP2809A has an internal gain of 0 dB while specific external gain can externally be set with NCP2809B. If the application allows it, the virtual ground provided by the device can be connected to the middle point of the headset (Figure 1).