Amplificatore in Classe AB per cuffie 2x150mW
  • Amplificatore in Classe AB per cuffie 2x150mW
  • 2x150mW Class AB Headphone Amplifier Board

AA-AB32261 - 2x150mW Class AB Headphone Amplifier Board - LM4881

New
AA-AB32261
4 PCS
€ 11.13
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Quantity

Description

Class AB 2x150mW Amplifier for Headphones - LM4881

Sure Electronics - AA-AB32261

This 2 x 150mW headphone amplifier board has a perfect class AB architecture and an integrated LM4881 chip to get an output power of 150mW per channel. This card can be powered by any DC power supply between 8 and 24 V, which can be used to operate any headphone with a typical impedance of 8 ohms, 16 ohms or 32 ohms but for better functionality we recommend the power supply: ALC15V5AJ.

Dettaglio di connessione amplificatore in classe D

Technical Specifications Card AA-AB32261 

Parameters Test Conditions Value
Supply Voltages - 8-24 V
Efficiency - 22.7 %
Inactive power

SD Floating, FAN ON 

SD Floating, FAN OFF

2.6-5 W

1.7-3 W
Input Sensitivity (RMS) RL = 8Ω 0.194 V
Input impedance

SW1 ON

SW1 OFF

1.7 Kohm

3.3 Kohm
Gain

SW1 OFF

SW1 ON

9.6 dB

15.7 dB
Minimum load impedance - 8-16-32 Ω
Output power

THD = 0,1%; fIN = 1 kHz;RL = 8Ω

150 mW
Bandwidth @ ± 3dB ± 3dB 50-600KHz
Temperatures - 20-50 °C

Other Features Sheet AA-AB32261

Parameters Specifications
Chip LM4881
Dimensions 12,1 x 9,1 x 3,8 cm.
Power 2 x 150mW
Amplifier class AB
Volume control Optional
Short-circuit protection Yes
Overtemperature protection Yes

How can I use it?

Product Details
Brand
Wondom - Sure Electronics
Chips
LM4881
Output Power [Watt]
0,15
Channel
2
Power Supply (Volt)
No
WiFi
12
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