ISL99203IIZ-T

Audio Amplifiers Overview

The ISL99203IIZ-T is a fully integrated high-efficiency audio subsystem manufactured by Intersil (Renesas). It combines a Class-D mono amplifier with a capacitor-free headphone amplifier in a single package. The device operates on a supply voltage range of 2.4 V to 5.5 V and delivers an output power of 1.375 W into a 32 Ohm load. Key electrical specifications include a THD plus noise of 0.05% and a common mode rejection ratio of 61 dB. It features differential input and supports operation temperatures from -40°C to +85°C within a compact 20-WLCSP package measuring 2.55x2.05 mm.

Audio Amplifiers Feature Summary

• Integrates a high-efficiency Class-D mono amplifier with a capacitor-free headphone amplifier for space-constrained designs.
• Designed specifically to maximize performance while minimizing board space requirements for mobile applications.
• Requires minimal external components, simplifying the application circuit design.

Audio Amplifiers Applications

• Mobile phone audio subsystems
• Portable electronic devices requiring compact audio solutions
• Headphone and speaker driver circuits

Audio Amplifiers Procurement Notes

Verify the specific suffix 'IIZ' against the manufacturer's current datasheet to confirm pinout compatibility and RoHS status. Ensure the 20-WLCSP package dimensions match your PCB footprint constraints. Confirm that the differential input requirement aligns with your system's audio source interface before procurement.

Audio Amplifiers Selection Notes

Select this component when a combined mono amplifier and cap-free headphone solution is required in a minimal footprint. It is suitable for systems operating between 2.4 V and 5.5 V. Consider the 20-WLCSP package size if board real estate is limited. Verify that the 1.375 W output power meets the specific drive requirements for the connected load impedance.

Audio Amplifiers Part Context

The ISL99203 series represents Intersil's approach to integrating multiple audio functions into a single chip. This part belongs to the high-efficiency audio subsystem family, targeting the mobile market where power efficiency and physical size are critical. It consolidates what would traditionally be separate amplifier stages into one compact unit.

Audio Amplifiers Replacement Considerations

Check for direct cross-references in Renesas product selectors. Verify pin-to-pin compatibility if substituting with other Class-D amplifiers in WLCSP packages. Ensure replacement parts support both mono amplification and cap-free headphone driving if both functions are utilized in the design.