Feature:

1. Applicable: Mini digital power amplifier board designed for sound level testing and design of integrated circuit chips, including the sqrt of dynamic indexing compression circuits (e.g., input 1V, 1V; input 4V, 2V; input 9V, 3V).
2. Not Independent: Taking into account the dynamic and moderate accuracy of the command pointer, avoiding the small signal pointer does not move, the large signal pointer backing of the state. no independent power supply, the power supply directly from the original power supply.
3. High Performance: Installed low pass filter circuit to filter out high frequency interference and power supply for harsh environment (such as car sound system). Adjustable output sensitivity for a variety of specifications header.
4. 12V DC Power Supply: DC12V power amplifier VU Meter Driver Board is easy to use in car equipment and PC computers. With power reverse polarity . Provides power on pointer for guide pointer base to prolong service life.
5. Stable and Compact: TA7318P VU meter driver board adopts 0.5W metal film resistor with large power margin to ensure reliable and stable operation for a long time. Compared with TA7318P and TA7332P, it takes up less space and is more convenient and flexible to install.

Specification:

Item Type: DC12V Power Amplifier VU Meter Driver Board
Material: PCB
Input Sensitivity: 400Hz Input Sound Signal, 8025b Digital Multimeter Range
Measure AC MV, Input: 97mV, 39 Level to +3dB Position
Supply Voltage: DC12V 0.12A
Backlight Power Terminal: Available DCl0 to 12V 50MA. Small Bulb Power Backlight.
Drive Voltmeter, Level Meter Sensitivity: Recommended Sensitivity of 500uA, 630 Ohms
(Against the Best Damping Effect at This Time, Other Specifications of the Level Meter in the Damping Effect Will Be Different, Need Further Adjustment.)

Package List:

1 x Power Amplifier Module

Note:

The power supply voltage must be strict to ensure that 12VDC, although more than short term work, but a long time will burn up the circuit.