Stereo – Component Values

TDA8954 210W + 210W Stereo 2.0 Ultra High Power Dual Channel Audio Digital Power Amplifier Board

componentsvalue — Sat, 25 Mar 2023 06:48:40 +0000

Product description:

TDA8954 digital power audio amplifier board features a wide operating voltage range of +/- 12.5V to +/- 42.5V. And it not only supports the AC power supply but also supports the DC power supply. Besides, the power amplifier comes with two modes of two-channel OCL or mono BTL bridge.

Perfect protection: over-voltage protection, output current limitation.High efficiency, small quiescent current.

Fixed frequency: clock switching frequency can be external synchronization.

There is no “bang” when power on / off. Zero dead time PWM output switch.

High Power Output: As a single-ended amplifier, output 2 x 210W at Vp = +/- 40V and RL = 4; as a BTL amplifier, with BD modulation and low noise, output 420W.

Cooling device: aluminum radiator

Specification:

Chip: TDA8954; Amplifier type: D class; Working voltage: Dual AC16V to Dual AC28V (recommended voltage of dual AC24V); Power Input: AC24V or DC35V (refer attached image for connection details)
Amplifier design: Two-channel stereo high-power amplifier
Audio input: Differential input (stereo) or single-ended input (Mono)
Power Output: Stereo – 210W + 210W or mono BTL 1 * 420W, RL = 8Ohm
Frequency response: 20Hz-20KHz; Output impedance: 4Ohm-8Ohm

Bluetooth 4.0 Receiver – Micro USB Powered PAM8403 2x3W – Stereo 2 Channel Mini Class D Digital Audio Power Amplifier Board

componentsvalue — Fri, 24 Mar 2023 07:11:06 +0000

Product description:

Bluetooth receiver. Dual-channel stereo output 3 w + 3 w power Class D Works with 5v micro USB power supply High amplification efficiency 85% can directly drive 4 Ω/8 Ω small speakers to medium speakers. Good sound quality & noise suppression Unique with LC filter comes with a switch.

Specification:

Dual-Channel 3W per Channel Bluetooth Audio Receiver, Dual-panel wiring, properly solve the crosstalk between the ground potential balance and channel wiring
Unique with LC filter Class D digital power board, and can be used directly to the computer’s USB powered.
Operating voltage: DC 5V Recommended voltage: 4 V micro USB phone power supply, Quiescent current: 20 mA, Rated output power: 3 W +3 W (8)
Excellent noise suppression in the case is not connected to the input audio, the ear close to the speaker can not hear any noise
Frequency response: 20Hz to 50KHz; Transmission distance: 20 meters maximum (no blocking)

Bluetooth Stereo 2 Channel Mini Class D Digital Audio Power Amplifier Board – CT14 2 x 3W BT2.1+EDR

componentsvalue — Fri, 24 Mar 2023 07:11:05 +0000

Product description:

Features:

1. AB/D type working mode switching, level setting
2. 0.1% THD (tested with 1W output power, 5V power supply 4-ohm speaker)
3. Excellent “Power on, Power-down” noise suppression.
4. Overcurrent, overheat and Undervoltage protection
5. eSOP8 Package
6. Open space range 15Meters
7. Automation connection of paired devices and automatic music playback
8. F-Class amplifier 5W+5W, high power output, sound quality over 8002

Specification:

Product Name: CT14-3W-2Channel-Bluetooth-2.1-EDR-Receiver: Color of PCB varies
Bluetooth Version: BT2.1+EDR
Operating Voltage: 3 ~ 5V; Operating current: 2A (max)
Recommended power supply: 5V 2A; Please use a good quality power supply or lithium power bank to avoid humming noise.
Output Power: 3.2W(4ohm speaker @ 5V), 5W (2ohm speaker @ 5V); Efficiency: 85%

CT14+ 2 x 5W BT4.2 – Bluetooth Stereo 2 Channel Mini Class D Digital Audio Power Amplifier Board

componentsvalue — Fri, 24 Mar 2023 07:11:03 +0000

Product description:

AB/D type working mode switching, level setting
0.1% THD (tested with 1W output power, 5V power supply 4-ohm speaker)
Excellent “Power on, Power-down” noise suppression.
Overcurrent, overheat and under-voltage protection
eSOP8 Package
Open space range 15Meters
Automation connection of paired devices and automatic music playback
F-Class amplifier 5W+5W, high power output, sound quality over 8002 Operations
Start the cell phone Bluetooth, scan the device, find the “DW-CT14+” to click connection.

Product Name: CT14+ Ver 1.7: Color of PCB varies
Bluetooth Version: BT4.2; supports automatically connecting devices that have been paired and playing music automatically;
Operating Voltage: 3 ~ 5V; Operating current: 2A (max); F class power amplifier 5W+5W, high power output
Recommended power supply: 5V 2A; Please use a good quality power supply or lithium power bank to avoid humming noise.
Output Power: 3.2W(4ohm speaker @ 5V), 5W (2ohm speaker @ 5V); Efficiency: 85%

PAM8406 2 x 5W – 2 Channels 5W dual channel stereo mini Class D Digital Audio Power Amplifier Board USB DC 5V – with Volume Control Potentiometer

componentsvalue — Fri, 24 Mar 2023 07:02:27 +0000

Product description:

Volume: 23 * 24MM
weight:0.45 g
Excellent noise suppression. in the absence of contact input audio, you will not hear any noise even put your ear close to the speaker
The two-channel stereo, 5V power supply can output 5W + 5W power, directly drive 4, 8 speakers, output power, full of energy, good sound quality, with left and right channel volume adjustment.
unique non-LC filter Class-D digital power board, it can be used directly for the USB-powered from computers.
dual-panel wiring and proper solution to potential balance and channel crosstalk caused by the wiring between
ultra-miniature design, it can easily be placed in a small space inside a variety of digital products, high amplification efficiency.
Solder by machine 8. The rated working voltage 2.5-5V, limit operating voltage 5.5V

Specification:

Excellent noise suppression. in the absence of contact input audio, you will not hear any noise even put your ear close to the speaker
The two-channel stereo, 5V power supply can output 5W + 5W power, directly drive 4, 8 speakers, output power, full of energy, good sound quality, with left and right channel volume adjustment.
unique non-LC filter Class-D digital power board, it can be used directly for the USB-powered from computers.
dual-panel wiring and proper solution to potential balance and channel crosstalk caused by the wiring between
ultra-miniature design, it can easily be placed in a small space inside a variety of digital products, high amplification efficiency.