PUI Audio AMP2X15 Instructions d'installation

This document contains data proprietary to PUI Audio Inc. Any use or reproduction, in any form, without prior written permission

of PUI Audio Inc. is prohibited.

PUI Audio, Inc. A Projects Unlimited Company, 3541 Stop Eight Road, Dayton, OH 45414

Tel: (937) 415-5901 Fax: (937) 415-5925

User’s Guide and Specifications AMP2X15 Audio Amplifier Board

PUI Audio’s AMP2X15 audio amplifier board features a Texas Instruments’

TPA3110D2 Class D amplifier circuit for maximum signal fidelity; delivering

6 Watts per channel of low-distortion power (0.1% THD+N) into 4Ω loads; 15

watts per channel into 8Ω loads (10% THD+N with 16 VDC supply).

The AMP2X15 is purpose-built to aid and assist engineers in prototyping audio

solutions for a multitude of applications, and offers single-ended and differential

inputs with stereo BTL or mono PBTL outputs.

Features:

•

Small form factor—76.2mm x 50.8mm x 20mm (L x W x H)

•

Wide +9.5V to +20V DC input range (power supply not included)

•

Three different input connections—stereo 3.5mm jack, terminal blocks, six-circuit

Molex® SL™ 70543 connector

•

Audiophile-grade sound quality

•

Single-ended and differential inputs; stereo or mono output

•

Built-in over-current and over-temperature protection

Note:

Please read this manual carefully before using this product. To keep the product in the best working condition,

please operate it according to the relevant steps. Warranty is void if this product is misused.

Please read this manual carefully before you use the product. A DC power supply with 9.5V to 20V output (and a

minimum of 2A of current capacity) is recommended to be used to power this product.

Safety Precautions:

1. In order to achieve the best sound quality, please use a stable power supply. A bad or unstable power supply

will reduce the sound quality or even damage the amplifier board.

2. Avoid metal objects coming into contact with this product. Protect the solder joints on the bottom of the PCB

when mounting this product.

3. Do not connect a pre-amplifier to the input of this product. Enough gain is provided to allow the amplifier to

develop maximum power output. Doing so may damage the amplifier. Ensure the audio input signal is at a

minimum when powering on the amplifier, to protect the amplifier and connected speakers.

4. Never expose this product to rain or extremely humid (>95% relative humidity) environments to prevent fire

or electric shock.

This document contains data proprietary to PUI Audio Inc. Any use or reproduction, in any form, without prior written permission

of PUI Audio Inc. is prohibited.

PUI Audio, Inc. A Projects Unlimited Company, 3541 Stop Eight Road, Dayton, OH 45414

Tel: (937) 415-5901 Fax: (937) 415-5925

Specifications

The following table lists all typical data of the PUI Audio Amplifier Board. For full specifications, please refer to

the Texas Instruments’ TPA3110D2 technical specifications. All parameters below are tested @ TA=25°C,

12 VDC input voltage (unless otherwise stated), 1 kHz sine wave input, with gain set to 26 dB.

Parameter

Condition

Min.

Typ.

Max.

Supply Voltage (Vcc)

9.5V

12V

20V

Input Sensitivity

8Ω, 8W, 1kHz

0.428V

Signal-to-Noise Ratio

THD+ N < 1%, f = 1

kHz, 6W, 8Ω

94 dB

Total Harmonic Distortion +

Noise

Vcc = 12 V, f = 1

kHz, Po = 5W

(half-power)

0.06%

RL = 8 Ω, f = 1 kHz,

Po = 10W

10%

Efficiency

Vcc= 12 VDC,

RL=8Ω, Pout= 8W

86.4%

Vcc=12 VDC,

RL=8Ω, Po= 10W

89%

Input Impedance

30 kOhm

Gain

26 dB

Output Power (Po)

(per channel)

THD+N=10%, f = 1

kHz, Vcc=16 VDC,

RL=8Ω

15W

THD+N = 0.1%, f = 1

kHz; Vcc = 12 VDC,

RL=4Ω, 0.7V input

signal

Frequency Response

20-20,000 Hz

(±3dB）

Quiescent Current

SD = 2V, no load,

Vcc = 12 VDC

20mA

35mA

Minimum Resistive Load (RL)

3.2 ohm

4 ohm

Operating Temperature

-40℃

20℃

65℃

Storage Temperature

-60℃

20℃

105℃

Thermal Shutdown

150℃

Setup

This document contains data proprietary to PUI Audio Inc. Any use or reproduction, in any form, without prior written permission

of PUI Audio Inc. is prohibited.

PUI Audio, Inc. A Projects Unlimited Company, 3541 Stop Eight Road, Dayton, OH 45414

Tel: (937) 415-5901 Fax: (937) 415-5925

Output Mode and Input Mode Switching

This audio amplifier board supports switching between stereo (BTL) and mono (PBTL)

modes, as well as single-ended (V0-p) and differential (Vp-p) inputs. Two switches control the

operation of these modes on the amplifier board.

Stereo (BTL) and mono (PBTL) modes are controlled by the position of SW1 (A or B) and SW2

dip switches 3 and 4.

Output Mode

SW1

Dip switches 3&4 on SW2

Stereo

B (right position)

ON (bottom position)

Mono

A (left position)

OFF (top position)

This document contains data proprietary to PUI Audio Inc. Any use or reproduction, in any form, without prior written permission

of PUI Audio Inc. is prohibited.

PUI Audio, Inc. A Projects Unlimited Company, 3541 Stop Eight Road, Dayton, OH 45414

Tel: (937) 415-5901 Fax: (937) 415-5925

The input method can be set to single-ended (V0-p) inputs or differential (Vp-p) inputs and is

controlled by dip switches 1 and 2 on SW2.

Input Mode

Dip switches 1&2 on SW2

Single-ended

ON (bottom position)

Differential

OFF (top position)

For most stereo consumer audio sources (smartphones, MP3 players, etc.) select single-ended

input.

Audio Amplifier Board Mute Control

This audio amplifier board allows the user to put it into shutdown/mute mode. To do so, short

the SD and GND connections of J2s Phoenix-type terminal blocks. A single-throw, single-pull

(SPST) switch can be connected to these two connections for control of the amplifier board’s

mute function.

This document contains data proprietary to PUI Audio Inc. Any use or reproduction, in any form, without prior written permission

of PUI Audio Inc. is prohibited.

PUI Audio, Inc. A Projects Unlimited Company, 3541 Stop Eight Road, Dayton, OH 45414

Tel: (937) 415-5901 Fax: (937) 415-5925

Stereo/Two Channel Connection

1. Set the Output Mode to BTL and Input Mode to match the single input type.

2. Connect your stereo audio source:

A) A stereo 3.5mm audio jack is provided for easy connection to your stereo audio

source, such as a smartphone, MP3 player, or computer.

B) Two Phoenix-type screw terminal blocks on either side of the stereo 3.5mm jack (J4

and J8) may also be used to connect to your audio source. Ensure polarity is observed

when using these terminal blocks (+ on outside terminations).

C) A six-circuit Molex® SL™ 70543 connector is also provided for differential audio

signal input.

3. Connect your speakers to the Phoenix-type screw terminal blocks, J5 & J7 opposite the

stereo 3.5mm jack, ensuring polarity is observed (+ on outside terminations) for best

bass response.

4. A 2.1mm x 5.5mm center-positive DC power jack is provided for quick power supply

connection. Simply connect your 8 VDC to 19 VDC power supply, and the POWER LED

will illuminate green.

The gain on this amplifier board is fixed at 26 dB. Please use your audio source device’s volume control

to adjust the amplifier output. Alternatively, you can connect a 25 kOhm audio taper potentiometer

between the audio source device and amplifier for the purpose of volume control.

Note: Only use one group of audio inputs at a time.

This document contains data proprietary to PUI Audio Inc. Any use or reproduction, in any form, without prior written permission

of PUI Audio Inc. is prohibited.

PUI Audio, Inc. A Projects Unlimited Company, 3541 Stop Eight Road, Dayton, OH 45414

Tel: (937) 415-5901 Fax: (937) 415-5925

Mono/One Channel Connection

1. Set the Output Mode to PBTL and Input Mode to match the single input type.

2. Connect your audio source:

A) Phoenix-type terminal block J8 (only) for a mono audio source.

B) Use the first three pins of the six-circuit connector for a mono audio source.

3. For best performance, short OUT1+ to OUT1- (J5) and connect the speaker’s negative

to either OUT1+ or OUT1-. Short OUT2+ to OUT2- (J7) and connect the speaker’s

positive to either OUT2+ or OUT2-.

4. Connect your 8 VDC to 19 VDC power supply to the DC power

jack. The POWER LED will illuminate green.

Note: Only use one audio input at a time.

This document contains data proprietary to PUI Audio Inc. Any use or reproduction, in any form, without prior written permission

of PUI Audio Inc. is prohibited.

PUI Audio, Inc. A Projects Unlimited Company, 3541 Stop Eight Road, Dayton, OH 45414

Tel: (937) 415-5901 Fax: (937) 415-5925

Dimensions

Output Power vs Supply Voltage

Stereo Speaker Output (BTL)

Mono Speaker Output (PBTL)

Fault Indication Light

In the event that the input/output mode is incorrectly set (a dipswitch

in the wrong position) or an overcurrent condition exists, the fault

indication LED will illuminate and amplifier operation will cease.

Remove power, correct the fault condition, and reapply power to clear

the fault and resume amplifier operation.

This document contains data proprietary to PUI Audio Inc. Any use or reproduction, in any form, without prior written permission

of PUI Audio Inc. is prohibited.

PUI Audio, Inc. A Projects Unlimited Company, 3541 Stop Eight Road, Dayton, OH 45414

Tel: (937) 415-5901 Fax: (937) 415-5925

Specifications Revisions

Revision

Description

Date

Released from Engineering

2/19/18

Note:

1. Unless otherwise specified:

A. All dimensions are in millimeters.

B. Default tolerances are ±0.5mm and angles are ±3°.

2. Specifications subject to change or withdrawal without notice.

3. This part is RoHS 2011/65/EU Compliant.

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