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External Audio Amplifier Board

BLR-VT91

Features

  • Class D Audio stereo amplifier, including, mute and power standby control.
  • High power CMOS Technology
  • Analog stereo input
  • Max. output power 10W (8Ω) × 2 @ THD=10%
  • High efficiency Class-D operation , low heat dissipation

A. Power Supply

Input： 　　　DC12V

B. Environment

Operational Temperature ： 0℃ ~ 50℃
Storage Temperature ： -20℃ ~ 70℃
Operation Humidity： 20% ~ 80%
Storage Humidity： 10% ~ 90% (non condensing)

C. Load

Output： 　　10W+10W load 8ohm THD+N 10%
Input Connector
  • •Con20 for DC12V power input
  • •Con21 for Stereo audio signal input , mute control and power standby control.
Output Connector
  • •CON23, CON24 Support 1 set L/R 10W+10W speakers
Connector, Pin Assignment & Jumper


Pin definition for connector

CON20. Power (12V) connector (4P 2mm)

Pin Symbol Description
1 12V
2 GND
3 GND
4 12V

CON21. input connector (5P 2mm)

Pin Symbol Description
1 L_10W
2 R_10W
3 Mute_AMP
4 STB_AMP
5 GND

CON23. SPEAKER OUT RIGHT CHANNEL connector (2P 2mm)

Pin Symbol Description
1 SP_L+ Speaker out left +
2 SP_L- Speaker out left -

CON24. SPEAKER OUT LEFT CHANNEL connector (2P 2mm)

Pin Symbol Description
1 SP_R+ Speaker out right +
2 SP_R- Speaker out right -

Board Dimension :50mm*65mm

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