AMP XPT8871 5WATT AUDIO

This board offers a 5 watt class D inductorless audio amplifier.

Features:

1. +5VDC nominal supply voltage (2.2 to 5.5V) @1amp or more.
2. Output max. 5watts into 2 ohm load, 3 watts into 4 ohms.
3. THD+N=10% max. @1KHz
4. Adaptive class AB to class D design.
5. Dimensions: approx. 20.5 x 15.5 x 10 mm (L x W x H).
6. Ideal for use with solderless breadboard mounting.
7. Shipped with snap-off pins unfitted…need soldering.
8. Made in England.

PINOUTS:-

P2                               P1

1 0V                            8 VO+ (to speaker+)

2 SD                           7 0V (supply return)

3 mode                       6 +Vcc (+5V supply)

4 IN                             5 VO- (to speaker-)

(P2 pin 1 has a square pad)

(the SD (shutdown) P2 pin2 has a pull-down resistor…..drive it high 3 to 5V to enable the device)

(the mode pin P2 pin3 selects class AB when low (0V) and class D when high (+2 to +5V))

Example…..unit drew 0.8 amps with +5V supply, pin 3=0V, pin2=+5V and an input sine wave

signal of 1.5KHz @212mV Z=50 ohms