LM3886 İle 68 W YÜKSEK PERFORMANSLI SES AMPLİFİKATÖRÜ

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The LM3886 is a high-performance audio power amplifier capable of delivering 68W of continuous average power to a 4Ω load and 38W into 8Ω with 0.1% THD+N from 20Hz–20kHz.

The performance of the LM3886, utilizing its Self Peak Instantaneous Temperature (°Ke) (SPiKe) protection circuitry, puts it in a class above discrete and hybrid amplifiers by providing an inherently, dynamically protected Safe Operating Area (SOA). SPiKe protection means that these parts are completely safeguarded at the output against overvoltage, under voltage, overloads, including shorts to the supplies, thermal runaway, and instantaneous temperature peaks.

The LM3886 maintains an excellent signal-to-noise ratio of greater than 92dB with a typical low noise floor of 2.0µV. It exhibits extremely low THD+N values of 0.03% at the rated output into the rated load over the audio spectrum, and provides excellent linearity with an IMD (SMPTE) typical rating of 0.004%.

Note : Amplifier Required Large Size Heat sink

Features
  • 68W Cont. Avg. Output Power into 4Ω at VCC = ±28V
  • 38W Cont. Avg. Output Power into 8Ω at VCC = ±28V
  • 50W Cont. Avg. Output Power into 8Ω at VCC = ±35V
  • 135W Instantaneous Peak Output Power Capability
  • Signal-to-Noise Ratio ≥ 92dB
  • An Input Mute Function ( J1 & J2 Jumper)
  • Output Protection from a Short to Ground or to the Supplies via Internal Current Limiting Circuitry
  • Output Over-Voltage Protection against Transients from Inductive Loads
  • Supply Under-Voltage Protection, not Allowing Internal Biasing to Occur when |VEE| + |VCC| ≤ 12V, thus Eliminating Turn-On and Turn-Off Transients
  • Input Slandered Audio Line signal
 

Eklentiler

  • 68W-High-Performance-Stereo-Audio-Amplifier-Using-LM3886-1.pdf
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  • 68W-High-Performance-Stereo-Audio-Amplifier-Using-LM3886-3.pdf
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guclusat

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Süper Moderatör

LM3886 High Performance 68W Audio Power Amplifier​

IMG_20201110_201118l.jpg
components
1. LM3886TF ic.
2. 3×1kΩ resistor 1/4W.
3. 3×22kΩ resistor 1/4W.
4. 2×10Ω resistor 1W.
5. 3×0.1uF (104) capacitor 100V.
6. 1×22uF capacitor 63V.
7. 1×2.2uF capacitor 63V.
8. 2×4700uF capacitor 35V.
8. 1×5uH coil (1mm/ 19 gauge copper wire)
9. 1×2 pin screw terminal.
10. 1×3 pin screw terminal.
11. 1× Bridge Rectifier GBU1508/ GBU808
12. 1×2 pin connecter base 2.54 mm.

Specification
68W Output Power into 4Ω at VCC = ±28V
38W Output Power into 8Ω at VCC = ±28V
50W Output Power into 8Ω at VCC = ±35V
135W Peak Output Power. Signal-to-Noise Ratio ≥ 92dB
 

Eklentiler

  • LM3886 High Performance 68W Audio Power Amplifier.zip
    197,4 KB · Görüntüleme: 27

guclusat

Tanınmış Üye
Süper Moderatör
1606256327615.png
APEX Gainclone.jpg
Part List
R1,R3-1k
R2-100k
R4-15k
R5-10k
R6-4R7 1W

C1,C8-220nF63V MKS
C2,C3-680pF
C4-10uF16V
C5-100uF25V
C6,C7-1uF63V MKS

D1-ZF16V
D2-1N4004

IC1-LM3886T,TF
 

Eklentiler

  • LM3886.zip
    415,9 KB · Görüntüleme: 24
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