CS4461-CZZ

Analog To Digital Converters (ADC) Overview

The CS4461-CZZ is a multi-bit analog-to-digital converter designed for Class-D amplifier real-time power supply rejection (PSR) feedback. It utilizes a 5th-order delta-sigma modulator to sample and convert analog signals, generating digital data for input to Class-D PWM modulators such as the CS44800 or CS44600. The device supports logic levels between 3.3 V and 5.0 V, operates with a maximum conversion rate of 7.5 MHz, and delivers modulated data over a 2-wire interface. It features differential analog architecture for noise rejection and includes modulator overflow detection. The component is housed in a 24-pin TSSOP package.

Analog To Digital Converters (ADC) Feature Summary

• Advanced Multi-bit Delta-Sigma Architecture
• Real-time Feedback of Power Supply Conditions (AC and DC)
• Filterless Digital Output Resulting in Very Low Signal Delay
• Interfaces Directly to the CS44800/CS44600 Class-D PWM Modulator

Analog To Digital Converters (ADC) Applications

• Class-D audio systems requiring high power supply rejection
• Evaluation using the CDB44800 Customer Demonstration board

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix when purchasing. The -CZZ suffix indicates a commercial grade part (-10°C to +70°C) available in rail packaging. For tape and reel packaging, use the -CZZR suffix. Confirm that the required temperature range and container type match the project specifications before placing orders.

Analog To Digital Converters (ADC) Selection Notes

Select the CS4461-CZZ for commercial applications operating between -10°C and +70°C. Ensure the system provides a 3.3 V to 5.0 V digital supply (VDP) and a 5.0 V analog supply (VA). Verify that the analog input voltage remains within the specified full-scale differential range of 1.1 VPP to 3.9 VPP based on the VA supply level.

Analog To Digital Converters (ADC) Part Context

The CS4461-CZZ belongs to the CS4461 series of multi-bit ADCs specifically engineered for Class-D amplifier PSR feedback. It serves as a critical interface component, converting analog power supply conditions into digital data for real-time processing by compatible Class-D PWM modulators.

Analog To Digital Converters (ADC) Replacement Considerations

The CS4461-DZZ is an automotive-grade alternative offering an extended temperature range of -40°C to +85°C while maintaining identical electrical characteristics and pinout compatibility.