Texas Instruments TPA6204A1 guide

TPA6204A1 EVM Schematic Diagram

3.1 TPA6204A1 EVM Schematic Diagram

Figure 3−1. TPA6204A1 EVM Schematic Diagram

VDD

2.5 V to 5.5 V

VDD

C4 GND

	R3	S1
	100 kΩ	S1
	SHUTDOWN
		C5
	C1	0.22 ∝F
	0.22 ∝F
	IN+
	C2	R1
	C2	20 kΩ
	0.22 ∝F	20 kΩ
	0.22 ∝F

IN− R2

20 kΩ

SHUTDOWN VO −

BYPASS	GND
IN+	VDD
IN −	VO +

10∝F

OUT−

C3				GND
0.22 ∝F				GND
0.22 ∝F
				OUT+
				OUT+

3.2 TPA6204A1 Audio Power Amplifier Evaluation Module Parts List

Table 3−1. TPA6204A1 EVM Parts List

Reference	Description	Size	Qty.	Manufacturer/	Vendor/
Reference	Description	Size	Qty.	Part Number	Part Number
				Part Number	Part Number

C4	Capacitor, 10 ∝F, 6.3 V	A	1	Panasonic	Digi-Key
				ECS-TOJY106R	PCS1106CT−ND

C1, C2,	Capacitor, 0.22 ∝F,	0603	4	Panasonic	Digi-Key
C3, C5	80%/−20%, nonpolarized			ECJ−1VF1C224Z	PCC1790TR−ND

R1, R2	Resistor, 20 kΩ, 1/16 W, 1%	0603	2	Panasonic	Digi-Key
				ERJ−3EKF2002V	P200KHCT−ND

R3	Resistor, 100 kΩ, 1/16 W, 1%	0603	1	Panasonic	Digi-Key
				ERJ−3EKF1003V	PCS100KHCT−ND

S1	Switch, momentary		1	Panasonic	Digi-Key
				P8048SCT-ND	P8048SCT−ND

	Terminal post headers		7	Sullins	Digi-Key
				PTC36SABN	S1022-36−ND

U1	IC, TPA6204A1, audio	8-pin QFN	1	TI
	amplifier, 1.7 W, mono			TPA6204A1

PCB1	PCB, TPA6204A1 EVM		1

Note: All items are SMD except terminal posts.

3-2

TPA6204A1 specifications

Texas Instruments TPA6204A1 is a highly versatile and efficient audio amplifier designed primarily for portable audio systems. Building on TI's expertise in audio technology, this integrated circuit is ideal for driving speakers in battery-powered devices, making it a popular choice among engineers and designers of consumer electronics.

One of the primary features of the TPA6204A1 is its Class-D amplifier architecture, which offers significant advantages in terms of power efficiency and heat dissipation. With a typical efficiency of over 90%, the TPA6204A1 minimizes energy loss, allowing for longer battery life in portable applications while ensuring that the device remains cool during operation. This efficiency is especially important in compact designs where space and thermal management are critical.

The TPA6204A1 supports a wide supply voltage range from 4.5V to 17V, making it suitable for a diverse range of applications and battery types. This flexibility allows designers to use the amplifier in various configurations, accommodating different speaker requirements and battery sizes without compromising performance.

Another highlight of the TPA6204A1 is its output power capability. The device can deliver up to 2.5W per channel into a 4-ohm load, providing sufficient power for driving small speakers or headphones in portable devices. Additionally, it integrates several advanced features such as over-temperature protection, short-circuit protection, and undervoltage lockout, which enhance reliability and protect both the amplifier and connected components.

The TPA6204A1 also includes a low noise floor and high signal-to-noise ratio (SNR), making it suitable for high-fidelity audio applications. This ensures that audio playback maintains clarity and detail, even at lower volume levels. Furthermore, it is designed to work with a variety of input sources, accommodating different audio formats and devices, such as smartphones, tablets, and laptop computers.

Overall, the Texas Instruments TPA6204A1 stands out as a robust solution for audio amplification needs in portable electronics. Its combination of high efficiency, flexible power options, and protective features make it an ideal choice for developers aiming to enhance the audio experience in a compact, reliable package. As the demand for quality audio in portable devices continues to grow, the TPA6204A1 provides a comprehensive answer to both consumer and industrial challenges in audio amplification.