Welcome to use this 2*300W Class-D audio amplifier board series by Sure Electronics.
It integrates TI’s high performance TAS5630 supporting dual channel audio amplification.
Both of channels are capable of outputting nominal power simultaneously and
continuously. It’s suitable for amplifier enthusiasts or hobbyists to finish a complete
amplifier system.
Resistance and capacity components of high quality, including X7R ceramic capacitors,
Metallized Polyester (PET) Capacitors and lower ESR electrolytic capacitors, high
performance inductors are used to gain the perfect timber, finally realize high S/N ratio,
low THD+N, wide frequency response range etc.
FIGURE 1-1 FRONT VIEW
1.2 Accessories
We don’t provide audio accessories together with this product. Please go to
www.sure-electronics.com
Note: The diagrams above are used for reference only.
to choose what you need.
1.3 Features
y A perfect "Class D" architect ure
y Frequency response: 20Hz to 20KHz(±3dB)
y Four selectable, fixed gain settings of nominally 23 dB, 29dB, 33 dB and 35dB.
y Single end audio signal input
y Under voltage protection
y Over current protection
2 X 300W att Class-D Audio Amplifier Board– TAS5630
A
y Short Circuit and Over Temperature Protection
y Click & Pop Noise Reduction
y 2 speed Fan
Note:
1. When the temperature exceeds 125 ℃, the fan will speed up to enhance heat
dissipation.
2. If the fault condition persists, the protection circuit stays in shutdown until the
fault is removed.
3. If the protection above functions, the output will be shutdown. Repower the
amplifier and it will work again.
1.4 Applications
y PA system
y Home DIY
y Background Music Systems
y Home DIY
y Prototype for recording studios, post-production, live sound and hi-fi applications.
Custom service related with these applications is provided.
1.5 Benefits
y Mounting holes facilitate installation and fixing
y Several wiring methods facilitate connection: RCA Socket (Default),Terminal
Block(Optional)
yExcellent heat dissip ation eliminates the requirement of an extra heat sink.
1.6 Quick Start
Suggested connection is shown in figure 1-3. Before using RJ135T terminal blocks to
power the board, please make sure the polarity is correct. 50V, 12A supply is required.
Note: Please observe the following steps to complete verification so as to ensure the
products are intact during transit.
1. Open the amplifier package and make sure the product is intact (No missing
or damaged components and no deformation.
2. Please observe the connection schematics when connecting the amplifier
board. Use a nearby sound source, such as MP3 or CD player to have a trial.
This amplifier board can be deemed as qualified if you can hear the sound
corresponding to that sound source
3. It’s suggested to make sure the polarity of the wires first and then connect the
audio cables, wires. Turn down the output to the lowest and then power the
board.
To power the amplifier board, use either jack J12 or terminal blocks J11. Pay attention to
the polarity when connecting power supply.
FIGURE 2-1 POWER CONNECTION
2 X 300WATT CLASS-D AUDIO
AMPLIFIER BOARD– TAS5630
USER’S GUIDE
Chapter 2. Hardware Detail
TABLE 2-1 POWER CONNECTION
Connector Mark Description
Jack J12 DC power supply socket
Terminal
Blocks
TABLE 2-2 Recommended Supply Voltages
Voltage Limitations Current Requirement
25 to 50 V 16A
Note:
1. You are allowed to use only one way to power the amplifier board at a time.
2. You’re suggested to use AWG16 power cord. The length of power cord must be
minimized. Increasing length of PSU cable is equal to increasing the distortion
for the amplifier at high output levels and low frequencies.
3. 48V 12.5A switching power supply is recommended if you just use this product
This amplifier has two LED indicators which is marked as “PWR (D4)” and “125 degree
C (D2) “. “Power (D4)” will be illuminated in green when power-up. “125 degree C
(D2)“ will be illuminated once the temperature of TAS5630 reaches up to 125 degrees
centigrade, at the same time the fan speeds up.
J5 Negative Output of Channel 1
J2 Positive Output of Channel 1
J9 Negative Output of Channel 2
J6 Positive Output of Channel 2
J3 Output of Channel 1
J7 Output of Channel 2
1. Never connect more than one group of speaker to the audio output
2. Never connect CH1_OUT- 、CH2_OUT- together sin ce they belong to different
NETs.
3. Refer to on-board descriptions for connection details.
4. Both positive and negative speaker outputs are floating and may not be
connected to ground (e.g., through an oscilloscope).
2 X 300W att Class-D Audio Amplifier Board- TAS5630
A
FIGURE 2-4 LED INDICATORS
2.5 Gain Setting
You may also adjust the gain by setting the DIP switch SW1, SW2, SW3 and SW4. The
gain is factory pre-set to weak. This can prevent chip from permanent damage caused
by overheat when input signal amplitude is over range. On the other conditions of gain
setting, it is recommended that the output signal amplitude is no larger than the power
supply voltage once the input signal reaches the peak.
For example, the maximum amplitude of the input signal is no more than 480mV RMS
when power supply voltage is 50V, load impedance is 4 ohm and the gain is set at 35 dB.
The other circumstances can be referred to the input sensitivity fromTABLE 3-1
ELECTRICAL CHARACTERISTICS. Never adjust the gains when the amplifier is
working, or TAS5630 will be damaged because of the instantaneous voltage. The
instantaneous energy will exceed the rated power of a speaker and damage it. When
adjust gain, please set SW1, SW2, SW3 and SW4 in the same way to make sure the
same gains.
In order to protect amplifier board and extend its service lifetime, please read the
following warnings carefully since warranties will be voided if you do not observe the
following warnings:
Warning 1:
Quality-related issues caused by potentiometers installed by buyers.
Warning 2:
In order to achieve a better sound quality, please use stable power supply since a bad o r
unstable power supply may worsen the sound quality or even cripple the amplifier board.
Warning 3:
Never equip a pre-amplifier to the audio input since the amplifier itself has powerful
amplification ability and a high signal input will burn out the amplifier chip.
Warning 4:
In order to protect amplifier and speaker, please turn the volume output to the minimum
when hooking up the amplifier and you may readjust the volume when you are sure that