TDA2030A 6-12V 18W Audio Amplifier Module

Specifications:

Support sampling frequency (kHz): 8 / 11.025 / 12/16 / 22.05 / 24/32 / 44.1 / 48
Supported file format: MP3 / WAV
Support Micro SD card, Micro SDHC card
30 classes adjustable volume
UART TTL serial playback mode, baud rate is 9600bps
Power supply can be 3.2 ~ 5.2 VDC

Specifications:

1. Operating Voltage: 3.3V to 5V DC
2. LM393 comparator with threshold preset
3. PCB Size: 3.4cm * 1.6cm
4. Induction distance: 0.5 Meter
5. Operating current:  4~5 mA
6. Microphone Sensitivity (1kHz): 52 to 48 dB

Features :

1. A d-type amplifier without a filter, low quiescent current, and low EMI.
2. When connects with a 4-ohm load and 5V power supply, the output power can be up to 3W.
3. Low THD, low noise.
4. Short circuit protection; thermal protection.
5. Input Voltage : 2.5-5.5 V(USB power supply).
6. Output Impedance : 4 ohm.
7. Efficiency : 90%.
8. Frequency Response : 150 Hz – 20 KHz.
9. Input Impedance : 2 Kohm.
10. Dimensions : 15 x 20 mm.

Features :

1. An easy to use 10 seconds of voice recording.
2. High-quality, natural voice restored.
3. Can be used as a propaganda module.
4. With looping, jog playback, single-pass play function.
5. Available single-chip control.
6. This module can directly drive a small speaker 8 ohms 0.5W.
7. Audio recording control mode: the key to control or microcontroller, IO has drawn the line of control.

Specifications:

• The use of low-power CMOS technology, lead-free and environmentally friendly.
• Direct Push can output low LED (please add current limiting resistor), the output high may push transistor (please add current limiting resistor).
• Available resistance adjusting timing, there are 8 * N (N = 0.1.2.3) times the timing selection, time can be adjusted from 2s-1000h.
• Optional trigger timing and triggering termination ground electric timer.
• Standby output high, falling edge trigger, post-trigger output low, after the delay recovery high.

Specifications:

1. Working voltage: DC 3.3-5V.
2. Signal output indication.
3. The output is digital.
4. Single-channel signal output.
5. With the retaining bolt hole, convenient installation.
6. Output low level and the signal light when there is sound.
7. Comaptiable with Arduino Boards,esp 8266 .