SAE800GXLLA1

Audio Special Purpose Overview

The Infineon SAE800GXLLA1 is a programmable audio tone processor (Tone Gong) in an 8-SOIC surface-mount package. It operates on a supply voltage range of 2.8 V to 18 V and supports junction temperatures from -25°C to +125°C. The device generates single, dual, or triple tones with a maximum oscillator frequency of 100 kHz. It features constant current output capability and low standby current.

Audio Special Purpose Feature Summary

• Programmable single-, dual-, or triple-tone generation via E1/E2 trigger inputs
• Integrated thermal shutdown protection for the output stage
• Low standby current consumption
• Constant current output driver

Audio Special Purpose Applications

• Audio systems requiring programmable tone gongs
• Home chime installations
• Battery-operated devices due to low standby consumption

Audio Special Purpose Procurement Notes

This component is End-of-Life (EOL). DigiKey reports EOL status as of January 25, 2022, and Mouser indicates it will be discontinued. Verify availability through authorized channels and check for specific End-of-Life notifications before finalizing designs.

Audio Special Purpose Selection Notes

Select based on the required tone configuration (single, dual, or triple) determined by E1 and E2 pin states. Calculate external oscillator components (RR, CC) using the formula f0 = 5 / (8 * RR * CC). Size the loudness resistor RL according to the load impedance RQ and supply voltage VS to ensure correct amplitude ratios.

Audio Special Purpose Part Context

This component belongs to the SAE 800 family of bipolar ICs designed for wide supply voltage ranges. It serves as a compact solution for generating specific musical intervals, such as minor and major thirds, derived from a fundamental oscillator frequency.

Audio Special Purpose Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should evaluate legacy variants or consult manufacturer resources for modern equivalents if availability is critical.