Datasheet4U Logo Datasheet4U.com

SGM4917 - Stereo Headphone Amplifier

General Description

The SGM4917 stereo headphone amplifier is designed for portable equipment where board space is at a premium.

Key Features

  • SGM4917A: External Feedback Gain Network SGM4917B: Fixed -2V/V Gain SGM4917C: Fixed -1.5V/V Gain.
  • No Bulky DC-Blocking Capacitors Required.
  • Ground-Referenced Outputs Eliminate DC-Bias Voltage on Headphone Ground Pin.
  • No Degradation of Low-Frequency Response Due to Output Capacitors.
  • Differential Inputs for Enhanced Noise Cancellation.
  • 125mW per Channel into 32Ω Headset.
  • Low 0.02% THD+N.
  • High PSRR (78dB at 217Hz).
  • I.

📥 Download Datasheet

Datasheet Details

Part number SGM4917
Manufacturer SG Micro
File Size 404.72 KB
Description Stereo Headphone Amplifier
Datasheet download datasheet SGM4917 Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
SGM4157 DPDT Analog Switch Shengbang Microelectronics
SGM44599 DPDT Analog Switch Shengbang Microelectronics
SGM44600 DPDT Analog Switch Shengbang Microelectronics
SGM44601 DPDT Analog Switch Shengbang Microelectronics
SGM44602 DPDT Analog Switch Shengbang Microelectronics

Other Datasheets by SG Micro

Part Number Description
SGM4914 Stereo Headphone Amplifier
SGM4915 Dual 145mW Headphone Amplifier
SGM4916 Stereo Headphone Amplifier
SGM4918 Stereo Headphone Amplifier
SGM4995 1.3W Mono Fully Differential AudioPower 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
Preliminary Datasheet SGM4917 125mW, Capless, Stereo Headphone Amplifier with Shutdown GENERAL DESCRIPTION The SGM4917 stereo headphone amplifier is designed for portable equipment where board space is at a premium. The SGM4917 uses capless Direct-drive architecture to produce a ground-referenced output from a single power supply, eliminating the need for large DC-blocking capacitors for output, and saving cost, board space, and component height. Additionally, for SGM4917B and SGM4917C, the gain is set internally (-2V/V or -1.5V/V), further reducing component count. For SGM4917A, the Gain can be adjusted by external feedback resistors. The SGM4917 delivers up to 125mW per channel into a 32Ω load and has low 0.02% THD+N.