PGA2311PA

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The PGA2311PA is a class of audio special purpose applications intended for growing markets, such as automotive, home theater and commercial sound systems. It is a versatile amplifier providing many advantages over existing integrated solutions, including reduced overall power consumption, direct output drive capabilities and efficient cooling.

The PGA2311PA is a dual channel, bridge-tied load (BTL) output amplifier. The device employs complementary CMOS output stages for high slew rates, high current capability, low crossover distortion and low noise, making it an ideal choice for many high fidelity audio installations. With a quiescent supply current of less than 100mA and a low harmonic distortion of 0.01%, it has the ability to provide stunning audio quality.

The PGA2311PA incorporates a variety of features to enable a wide range of applications. The amplifier includes a single-ended gain support, which allows the user to set a desired voltage gain with an external resistor. It also includes soft mute, depending on the value of the mute control, which allows the user to vary the level of attenuation. In addition, the PGA2311PA features distortion compensation circuitry, which helps to reduce distortion levels when driving low impedance loads and increases the overall signal-to-noise-ratio. The device’s other features include a DC offset trim and a temperature compensation circuit to maintain optimal performance over temperature variations.

The PGA2311PA operates from a single + 5V supply and provides dual-channel audio outputs with low harmonic distortion and also eliminates the need for separate bridge power supply for low power applications. The device has a wide power supply range of 2.8V to 6V and operates with a supply frequency of 1kHz to 20kHz, allowing for flexibility in the design of AC coupled systems.

The PGA2311PA features an advanced on-chip power amplifier architecture. Its variable gain amplifier (VGA) configuration uses an all-digital signal processing technique, allowing it to achieve high power efficiency and reliably drive both low and high impedance loads. This process reduces the components required and provides accurate and consistent gain control over a wide range of conditions.

The PGA2311PA also includes a high-bandwidth continuous time filter, which enables the use of various filter topologies and adapts the system dynamics to minimize distortion. This filter works in conjunction with the amplifier’s distortion compensation circuitry to create a high fidelity, low distortion audio signal.

The PGA2311PA is designed to offer high levels of performance in a variety of audio applications, making it an ideal choice for many audio applications. With its wide operating range, high current capability, low harmonic distortion and efficient cooling, the PGA2311PA is perfect for use in mobile and home theater systems, as well as commercial sound systems.

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