Af1805 Bluetooth Amplifier

Bluetooth Power Amplifier Introduction

1:The product uses the latest Bluetooth BT4.0 module (CSR-BC7), effective reception distance of approximately 15 meters to 20 meters.

2:A2DP Multipoint Support

3:Standard:BT4.0,BLE,Class 1.5

Frequency Band:2.402G ~ 2.480G

4:Maximum Data Rate:3Mbps



5:For a variety of Bluetooth devices to receive.



6:Power amplifier modules ,use BTL class-D audio amplifier, Low power consumption, no heat sink?

20 W or40w or 100w continuous output power:

RL = 8 O, THD = 10% at VCC = 16 V

Wide-range single-supply operation (9 V - 16 V)

High efficiency (? = 90%)

Four selectable, fixed gain settings of

nominally 20 dB, 26 dB, 30 dB and 32 dB

Differential inputs minimize common-mode

noise

No ?pop? at turn-on/off

Standby and mute features

Short-circuit protection

Thermal overload protection



Key Functions:1:Play / Pause,Long press the button for 5 seconds Bluetooth is opened,Red green indicator lamp flashing alternately, search for Bluetooth devices (CSR-BC7), only the green light flashes, Bluetooth pairing success.?

2:The next choice key,Long press the button = increase volume,

3:The previous choice key, long press the button = volume reduction.?

4:Bluetooth the red and green indicator lamp flashing alternately?

5:Volume control potentiometer and power switch.

6:Two speakers connected,20W8ohm or 40W or 100w

7:DC input voltage:DC9-16V