Ble 4.0 CSR8645 Amplifier Board 5W+5W APT-X Stereo Receiver Amp Module
CSR8645 software version introduction:
1. Key: There are 6 function keys: POWER-EN, PLAY, VOL +, VOL-, PREV, NEXT.
Key functions are described below:
POWER-EN: When the switch is used to switch the switch, the module is switched on when the POWER-EN is connected to BAT.
When POWER-EN disconnects BAT, the module is turned off and is normally used when the battery is powered.
When the module is powered on, simply connect the POWER-EN series 10K resistor to BAT to make the module power on, usually in the external power supply.
PLAY: Play / Pause (short press), connect / hang up (long press, slightly longer), re-paired (long press)
VOL +: volume plus
VOL-: volume minus
PREV: Previous song
NEXT: next song
2. LED: pairing state, double lights alternately flashing, pairing, single light flashing;
3. USB sound card function;
4. 3.2V low alarm, 3.0V automatic shutdown, (to achieve the AMS1117 power supply);
5. The maximum charge current is set to 250MA, full of lights on the extinguished, bright another light (personal recommended with the charging module, fast);
6. No connection has been in the match;
7. can be connected to two mobile phones;
8. MUTE: Audio amplifier EN control pin, when in silence, after a period of time, the output low; when playing, the output high (1.8V).
Based on CSR8645 simple Ble headset SGM4812 --- 132mW (differential to balance) -5V power supply connection diagram:
Based on CSR8645 simple Ble headset SGM4812 --- 132mW (differential to balance) -12V power supply connection diagram
Based on CSR8645 simple Ble headset SGM4812 --- 132mW (differential to balance) - lithium power supply connection diagram:
Based on CSR8645 simple Ble audio HT6872 --- 2x4Ω3W --- 5V power supply wiring diagram:
Based on CSR8645 simple Ble audio HT6872 --- 2x4Ω3W --- lithium battery power supply connection diagram:
Based on CSR8645 simple Ble audio HT8696 --- 2x4Ω10W --- 12V power supply wiring diagram:
Based on CSR8645 simple Ble audio PAM8610 --- 2x4Ω15W or 2x8Ω10W --- 12V power supply connection diagram:
Based on CSR8645 simple USB sound card connection diagram: