Specification	TPA2054D4AYZKT

Features	Input Multiplexer, Differential Inputs, Mute, Volume Control, Depop, Shutdown, I2C
Max Output Power x Channels @ Load	1.4 W, 150 mW
Mounting Type	Surface Mount
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Output Type	2-Channel (Stereo) with Stereo Headphones
Package / Case	DSBGA, 25-UFBGA
Supplier Device Package	25-DSBGA
Type	Class D
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	2.5 V

TPA2054D4A Series

1.4-W, stereo, analog input Class-D audio amp with 145-mW headphone amp, 3:1 MUX & power on reset

Part	Supplier Device Package	Output Type	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	Type	Features	Voltage - Supply [Min]	Voltage - Supply [Max]	Package / Case	Max Output Power x Channels @ Load
Texas Instruments TPA2054D4AYZKT	25-DSBGA	2-Channel (Stereo) with Stereo Headphones	85 °C	-40 °C	Surface Mount	Class D	Depop Differential Inputs I2C Input Multiplexer Mute Shutdown Volume Control	2.5 V	5.5 V	25-UFBGA DSBGA	1.4 W 150 mW
Texas Instruments TPA2054D4AYZKR	25-DSBGA	2-Channel (Stereo) with Stereo Headphones	85 °C	-40 °C	Surface Mount	Class D	Depop Differential Inputs I2C Input Multiplexer Mute Shutdown Volume Control	2.5 V	5.5 V	25-UFBGA DSBGA	1.4 W 150 mW

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 4.11
		10	$ 3.69
		25	$ 3.49
		100	$ 3.02
	Digi-Reel®	1	$ 4.11
		10	$ 3.69
		25	$ 3.49
		100	$ 3.02
	Tape & Reel (TR)	250	$ 1.92
Texas Instruments	SMALL T&R	1	$ 3.10
		100	$ 2.71
		250	$ 1.90
		1000	$ 1.53

Description

General part information

TPA2054D4A Series

The TPA2054D4A features a stereo Class-D power amplifier along with a stereo DirectPath™ headphone amplifier. The TPA2054D4A has a mono differential input and two stereo single-ended (SE) inputs that can be configured as one stereo differential input. Both input channels have a 32-step volume control and the DirectPath headphone amplifier has a 4-level gain control for coarse volume adjustment. All amplifiers have output short-circuit and thermal- overload protection.

The Class-D amplifiers deliver 1.25 W into 8at 1% THD from a 5.0 V supply, and 700 mW from 3.6 V. The DirectPath headphone amplifier features an output voltage limiter to reduce the maximum output power to one of seven possible limits. The voltage limiter is programmed through the I2C interface.

DirectPath eliminates the need for external DC- blocking output capacitors to the headphones. The built-in charge pump creates a negative supply voltage for the headphone amplifier, allowing a 0 V DC bias at the output.

Documents

Technical documentation and resources

1.4 W/CH Stereo Class-D Audio Subsystem with DirectPath™ Headphone Amp datasheet

Data sheet