TSA1000 Digital Audio Volume Controller
TSA1000 is a Bluetooth/Single-ended audio volume controller. It can work with our TSA7499 Bluetooth audio amplifier board and control the audio volume by rotating a real knob.
Either the Bluetooth audio source or cable input (Single-ended) audio source can be adjusted by the small knob.
It has a single-ended audio source in port, a single-ended audio source output port, and a Bluetooth audio volume control port. The audio out signal will increase/decrease when the user rotates the knob. Bluetooth audio volume control port will also output an increase/decrease in the control signal.

Pins:
| Port name | Pin name | Direction | Description |
| Audio In | GND | – | |
| R | Analog In | Audio in | |
| L | Analog In | Audio in | |
| Audio Out | GND | – | |
| R | Analog Out | Audio out, connect to amplifier board | |
| L | Analog Out | Audio out, connect to amplifier board | |
| Bluetooth control | 5V | – | |
| GND | – | ||
| INC | Digital Out | Bluetooth audio volume + | |
| DEC | Digital Out | Bluetooth audio volume – | |
| SEL | Digital In | Bluetooth/Single-ended select
1-Bluetooth, 0-Single-ended select |

TSA7499 with TSA1000 external volume control board
Features:
- Size: 5cm x 3.8cm
- Bluetooth audio volume control
- Singal-ended audio volume control
- An external audio volume knob
- Working voltage: DC 5V
Applications:
- Personal computer
- Background music system
- Musical instrument amplifiers
- Home DIY
- Car audio

