AD1992ACPZRL

Overview

The AD1992ACPZRL is a two-channel, bridge-tied load (BTL) switching audio power amplifier manufactured by Analog Devices Inc. It integrates sigma-delta modulators and a full H-bridge power stage to drive speakers directly from single-ended analog inputs. The device operates with an analog and digital supply voltage of 5 V and a power transistor supply ranging from 8 V to 20 V. Key performance specifications include a signal-to-noise ratio of 102 dB, total harmonic distortion plus noise of 0.003% at 1 W output into a 6 Ω load, and crosstalk of -100 dB. It features programmable gain amplification, pop suppression, and comprehensive protection circuits.

Feature Summary

• Integrates stereo sigma-delta modulators and a full H-bridge power stage for direct speaker driving
• Provides on-off-mute pop noise suppression and silent turn-on/turn-off transitions
• Includes short-circuit protection and overtemperature warning/shutdown mechanisms
• Features a microprocessor-compatible digital interface for control and error reporting

Applications

• Advanced televisions
• Compact multimedia systems
• Minicomponents

Procurement Notes

Verify the specific package type and reel quantity against the manufacturer's current documentation before ordering. Confirm that the operating temperature range and supply voltage requirements align with the target system design. Ensure proper ESD handling procedures are followed during assembly due to the sensitivity of the CMOS and DMOS processes used in fabrication.

Selection Notes

Select this component for applications requiring high-efficiency Class-D amplification with integrated modulation. Consider the required PVDD voltage range and load impedance when designing the feedback network. Evaluate the PGA settings and nonoverlap time configurations to optimize the trade-off between efficiency and distortion for the specific audio application.

Part Context

This part belongs to the AD1992 series of audio switching amplifiers. It utilizes a low-cost DMOS process for the power stage while maintaining high-performance analog characteristics through sigma-delta modulation. The device is designed to replace traditional linear amplifiers in portable and fixed audio systems where efficiency and thermal management are critical constraints.

Replacement Considerations

Direct substitutes within the same family include the AD1992ACPZ and AD1992ACPZRL7. Verify pin compatibility and electrical specifications before substitution.