PAM8610 Audio Stereo Amplifier Module: Pinout, Circuit Diagram and Datasheet

The PAM8610 audio amplifier module stands as a remarkable piece of technology engineered to enhance audio experiences across various applications. Whether you are an audio enthusiast, a DIY hobbyist, or a professional, gaining insights into the capabilities and features of the PAM8610 can elevate your audio projects to new heights. This article explores its pinout, features, datasheet, and other detailed information about PAM8610 amplifier.

What is PAM8610?

The PAM8610 represents a stereo Class-D audio amplifier, providing an 10W output per channel, and it incorporates a DC Volume Control feature. What sets it apart are its exceptional attributes, including low Total Harmonic Distortion plus Noise (THD+N) at a mere 0.1%, minimal Electromagnetic Interference (EMI), and a commendable Power Supply Rejection Ratio (PSRR). These qualities collectively contribute to its capability to deliver high-quality audio reproduction.

A notable feature of the PAM8610 is its 32-step DC volume control, offering an extensive range from +32dB to -75dB, allowing precise control over audio output levels. Adding to its appeal is its efficiency, as it demands only a minimal number of external components. This translates to significant cost savings and optimal utilization of board space. When it comes to power efficiency, the PAM8610 outperforms competitors in the realm of audio amplification, making it a preferred choice for those seeking top-notch audio performance.

PAM8610 Pinout

The PAM8610 pinout consists of 40 pins, each serving a specific purpose. Here are the pinout and pin function on the PAM8610 module:

PAM8610 Pinout

Pin Number	Pin Name	Function
1	RINN Negative	differential audio input for right channel.
2	RINP Positive	differential audio input for right channel.
3	AVDD	5V Analog VDD
4	VREF	Analog reference for gain control section.
5	VOLUME	DC voltage that sets the gain of the amplifier.
6	REF GND	Ground for gain control circuitry. Connect to AGND. If using a DAC to control the volume, connect the DAC ground to this terminal.
7	AGND1	Analog GND
8	FADE	Input for controlling volume ramp rate when cycling SD or during power-up. A logic low on this pin places the amplifier in fade mode. A logic high on this pin allows a quick transition to the desired volume setting.
9	LINP	Positive differential audio input for left channel.
10	LINN	Negative differential audio input for left channel.
11, 20	PGNDL	Power ground for left channel H-bridge.
12, 19	PVCCL	Power supply for left channel H-bridge, not connected to PVCCR or AVCC.
13, 14	LOUTN	Class-D 1/2-H-bridge negative output for left channel.
15	BSLN	Bootstrap I/O for left channel, negative high-side FET.
16	BSLP	Bootstrap I/O for left channel, positive high-side FET.
17, 18	LO UTP	Class-D 1/2-H-bridge positive output for left channel.
21	VCLAMPL	Internally generated voltage supply for left channel bootstrap capacitors.
22	CO SC	I/O for charge/discharging currents onto capacitor for ramp generator triangle wave biased at V2P5.
23	RO SC	Current setting resistor for ramp generator. Nominally equal to 1/8*VCC.
24	AGND	Analog GND
25	MUTE	A logic high on this pin disables the outputs and a logic low enables the outputs.
26	AVCC	High-voltage analog power supply (7V to 15V)
27	V2P5	2.5V Reference for analog cells, as well as reference for unused audio input when using single-ended inputs.
29	SD	Shutdown signal for IC (low = shutdown, high = operational). TTL logic levels with compliance to VCC
30	VCLAMPR	Internally generated voltage supply for right channel bootstrap capacitors.
31, 40	PGNDR	Power ground for right channel H-bridge.
32, 39	PVCCR	Power supply for right channel H-bridge, not connected to PVCCL or AVCC.
33, 34	ROUTP	Class-D 1/2-H-bridge positive output for right channel.
35	BSRP	Bootstrap I/O for right channel, positive high-side FET.
36	BSRN	Bootstrap I/O for right channel, negative high-side FET.
37, 38	ROUTN	Class-D 1/2-H-bridge negative output for right channel.

Pin Description of PAM8610 Amplifier Board

Pin Name	Description
R_IN	Right Channel Input
GND	Ground Channel Input (Common ground of both Right and Left Channel)
L_IN	Left Channel Input
L-	Left Channel Output (GND)
L+	Left Channel Output (+)
+12V	Power input (+) [7-15V input, 12V Recommended]
SW1	Mute Switch Connection
SW2	Mute Switch Connection
R+	Right Channel Output (+)
R-	Right Channel Output (GND)

PAM8610 Features

• Input Voltage Range: 7~15V (12V Recommended)

• Output Power: 15W

• Operational Mode: Class-D (PWM Modulation Type)

• Built-in Mute Switch Port: Shorting SW turns off the power amplifier.

• Dimensions (L×W×H): 30.5×25.5×2.6 mm

• Output: 10W per channel at 10% Total Harmonic Distortion (THD) into an 8Ω Load at 13V

• Low Noise: -90dB

• Exceptional Efficiency: Over 90%

• Precise 32-Step DC Volume Control, Ranging from -75dB to +32dB

• Equipped with Shutdown, Mute, and Fade Functions

• Provides Protection Against Over-Current, Thermal Issues, and Short Circuits

• Low THD+N (Total Harmonic Distortion plus Noise)

• Minimal Quiescent Current

• Effective Pop Noise Suppression

• Compact Package: Slim 40-pin Q-shaped Outline

Overview of PAM8403 Amplifier Board

The primary power amplifier integrated circuit utilized in this setup is the PAM8610. Below, we highlight the key ports and features of this amplifier board.

This amplifier module is designed around the PAM8610 digital stereo amplifier IC, which is housed in a QFN 6x6 mm package with 40 pins. Being a stereo amplifier, it offers both stereo input and stereo output pin ports for convenient soldering of output speakers. Impressively, it delivers a maximum output power of 15W per channel.

One notable feature is its mute switch functionality, adding to its usability. By pressing the switch or shorting the mute port, you can effectively mute the power amplifier output.

With its low Total Harmonic Distortion plus Noise (THD + N) of 0.1%, this power amplifier stands as a low-noise solution suitable for various musical amplifier projects. An additional advantage is that it operates without the need for a heatsink, saving valuable board space. Despite the absence of a heatsink, it still provides essential thermal protection—a valuable feature for a compact amplifier module with lower wattage.

PAM8610 Amplifier Circuit Diagram

PAM8610 Functional Block Diagram

PAM8610 Interfacing Diagram

Connecting the PAM8610 module is a straightforward process. Refer to the diagram below to establish connections for your speakers, power supply, stereo input, and mute switch. To achieve optimal output performance, it is advisable to use a 12V 3A power supply in conjunction with 4 to 8-inch speakers.

Here are some important guidelines to follow when interfacing this module with power supply, input, and speakers:

• Power Input Limit: Ensure that the power input does not exceed 16.5V. Staying within this voltage range is essential to prevent potential damage to the module.

• Audio Output Precaution: Avoid any short-circuits between the audio output channels or connecting them to the ground. This precautionary measure safeguards the amplifier from potential harm.

• Thorough Connection Check: Before powering up the circuitry, meticulously inspect all your connections to confirm their accuracy and secureness. This verification process minimizes the risk of complications during operation.

How to Use the PAM8610 Amplifier

1. Voltage Limit: Ensure that the power supply voltage does not exceed 16.5V. Using a voltage higher than this limit should be avoided.

2. Recommended Power Supply: It is advisable to employ a 12V, 3A power supply for improved filtering and performance.

3. Speaker Recommendations: For optimal results, consider using stereo speakers within the 4-8 inch range.

4. Audio Output Precautions: Avoid any short-circuits between audio output channels or any direct short-circuits to the ground.

5. Verification Before Power-Up: Prior to applying power, conduct a thorough examination to confirm the correctness of your wiring. Ensuring proper connections is crucial before energizing the amplifier.

Advantages of Using the PAM8610 Amplifier

Exceptional Sound Quality

The PAM8610 module delivers clear and distortion-free audio, promising a delightful listening experience. Whether you're engaged in movie watching, music appreciation, or gaming, you can count on top-notch sound quality.

Energy Efficiency

Thanks to its Class-D amplifier design, this module keeps power consumption to a minimum, rendering it eco-friendly and cost-efficient. You can revel in powerful audio without fretting about soaring electricity bills.

Compact Design

Its petite dimensions make the module highly adaptable for integration into a variety of devices and projects. Whether you're constructing a space-efficient speaker or incorporating it into an existing setup, it won't monopolize much room.

Over-Temperature Protection

Embedded protective features shield the module from overheating, ensuring its longevity. This reliability guarantees prolonged enjoyment of your audio ventures.

PAM8610 Applications

• Speaker Output in LCD Monitors/TV Projectors

Enhance the audio performance of LCD monitors and TV projectors with the PAM8610's robust speaker output capabilities.

• Speaker Output Amplifier in Notebook Computers

Elevate the sound quality of notebook computers by utilizing the PAM8610 as a speaker output amplifier.

• Portable Speakers and Portable DVD Players

Create portable speakers and portable DVD players with improved audio output using the PAM8610 amplifier module.

• Game Machines

Integrate the PAM8610 into game machines for immersive gaming experiences with enhanced sound.

• Flat Panel Displays/LCD TVs

Improve the audio delivery of flat panel displays and LCD TVs for a more engaging viewing experience.

• Multimedia Speaker Systems

Build multimedia speaker systems that deliver exceptional sound quality, thanks to the PAM8610's capabilities.

• VD Players and Game Consoles

Enhance the audio performance of VD players and game consoles with the PAM8610 amplifier module.

• Boom Boxes

Construct powerful boom boxes that offer high-quality sound output, ideal for various audio settings.

• Musical Instruments

Enhance musical instruments with the PAM8610 to produce crisp and clear audio for both practice and performance.

PAM8610 Equivalents

When seeking alternatives or equivalents to the PAM8610 audio amplifier,  PAM8403 and TDA7297 can be used as substitutes for the PAM8610.

PAM8610 Datasheet

Download PAM8610 Datasheet PDF.

Conclusion

That's an overview of the PAM8610 Audio Stereo Amplifier Module, including its pin configuration, features, circuit, datasheet, advantages, and applications. In conclusion, the PAM8610 IC is a remarkable electronic component known for its exceptional sound quality, energy efficiency, compact design, and over-temperature protection. This amplifier is perfect for a wide range of audio applications, from portable speakers and headphones to DIY audio projects and more.

Read More

• What is Amplifier Inputs?

• Operational Amplifier (Op Amp) Basics, Uses and Applications

• The Ultimate Guide to NE555N Timer

Предыдущий: CD4017BE CMOS Counter: Circuit, Pinout and Datasheet

Следующий: LM358 Dual Op-Amp: Pinout, Datasheet and Working