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價格均含稅，下單享優惠！歡迎大量採購，由專人提供專案報價。

目前僅提供網路賣場服務，無實體店面，無自取服務。

價格均含稅，下單享優惠！歡迎大量採購，由專人提供專案報價。

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PAM8302- 2.5W立體聲D類音頻放大器模組

PAM8302- 2.5W立體聲D類音頻放大器模組

產品貨號：368031000518
區號：Pe06-14
品牌：Adafruit
原廠貨號：2130

滿千免運優惠(限郵寄和超商純取貨) on order

本賣場無實體店面，無提供自取服務，敬請見諒。 on order

NT$195
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Description
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Description


Description

This super small mono amplifier is surprisingly powerful - able to deliver up to 2.5 Watts into 4-8 ohm impedance speakers. Inside the miniature chip is a class D controller, able to run from 2.0V-5.5VDC. Since the amp is a class D, its very efficient (over 90% efficient when driving an 8Ω speaker at over half a Watt) - making it perfect for portable and battery-powered projects. It has built in thermal and over-current protection but we could barely tell it got hot. There's even a volume trim pot so you can adjust the volume on the board down from the default 24dB gain. This board is a welcome upgrade to basic "LM386" amps!


The A+ and A- inputs of the amplifier go through 1.0uF capacitors, so they are fully 'differential' - if you don't have differential outputs, simply tie the Audio- pin  to ground. The output is "Bridge Tied" - that means the output pins connect directly to the speaker pins, no connection to ground. The output is a high frequency 250KHz square wave PWM that is then 'averaged out' by the speaker coil - the high frequencies are not heard. All the above means that you can't connect the output into another amplifier, it should drive the speakers directly.


Comes with a fully assembled and tested breakout board. We also include header to plug it into a breadboard and a 3.5mm screw-terminal blocks so you can easily attach/detach your speaker. You will be ready to rock in 15 minutes! Speaker is not included, use any 4 ohm or greater impedance speaker.

  • Output Power: 2.5W at 4Ω, 10% THD, 1.5W at 8Ω, 10% THD, with 5.5V Supply
  • 50dB PSRR at 1KHz
  • Filterless design, with ferrite bead + capacitors on output.
  • Fixed 24dB gain, onboard trim potentiometer for adjusting input volume.
  • Thermal and short-circuit/over-current protection
  • Low current draw: 4mA quiescent and 1uA in shutdown mode



TECHNICAL DETAILS

Dimensions (without 0.1" header):

  • 15mm x 24mm x 2mm / 0.6" x 0.9" x 0.08"
  • Weight: 1.4g



Documents



List

  • Adafruit Mono 2.5W Class D Audio Amplifier - PAM8302 x 1
Shipping & Payment

Delivery Options

  • Overseas (FedEx)
  • Overseas (Post)
  • Postal delivery
  • 7-11 Pickup and pay in store (C2C)
  • 7-11 Pickup only (C2C)
  • Tcat - Room Temp.
  • Tcat - Room Temp. (Collect on Delivery)
  • Draft quotation

Payment Options

  • Bank transfer
  • Sales Coordinator Contact
  • Credit Card
  • Tcat (Collect on Delivery)
  • Pay on 7-11 Store Pickup (C2C)

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