BA3830F-E2

Overview

The BA3830F-E2 is a silicon monolithic integrated circuit designed as a band-pass filter for spectrum analyzers in car audio systems. It operates on a 5V microcomputer power supply with an operating voltage range of 4.5V to 8.0V and features an SOP18 package requiring minimal external components. The device integrates six center frequencies: fo1 (63Hz), fo2 (150Hz), fo3 (330Hz), fo4 (1kHz), fo5 (3.3kHz), and fo6 (10kHz). Electrical characteristics include a typical quiescent current of 3.8mA at VCC=5V, a reference output level of 0dB, and a maximum output level of 3.2V. It includes a reset function with defined threshold levels and input current specifications.

Feature Summary

• Built-in six-band band-pass filter optimized for automotive audio spectrum analysis
• Designed for direct integration with 5V microcomputer power supplies
• SOP18 package configuration minimizes required external component count
• Integrated reset pin functionality with specified threshold levels

Applications

• Car audio system spectrum analyzers
• Automotive audio signal processing circuits
• General-use electronic equipment requiring frequency analysis

Procurement Notes

Verify the specific suffix E2 against official Rohm documentation to confirm packaging or material compliance details. Ensure the sourcing channel provides valid traceability for this integrated circuit. Confirm that the delivered units match the REV B specification sheet provided by the manufacturer. Check for any regional export control requirements if applicable to the destination country.

Selection Notes

Select this component when designing automotive audio spectrum analyzers requiring a fixed six-band filter response. Ensure the design accommodates the 4.5V to 8.0V operating voltage range and the 450mW power dissipation limit. Verify that the SOP18 package footprint aligns with the PCB layout constraints. Consider the thermal derating requirement of 4.5mW/°C above 25°C for high-temperature environments.

Part Context

The BA3830F series serves as a specialized analog front-end solution for automotive audio diagnostics. It consolidates multiple filter stages into a single monolithic IC, reducing board space compared to discrete implementations. The device targets the consumer automotive electronics market, providing standardized frequency bands for visual audio representation in vehicle head units.

Replacement Considerations

No public substitute part numbers are documented in the source material. Cross-referencing requires matching the six-center-frequency profile and SOP18 package constraints. Consult Rohm sales representatives for potential obsolescence management or alternative recommendations.