HA12181FP-E is an integrated circuit for audio signal processing developed by Renesas Electronics (formerly Hitachi) for use mainly in stereo cassette systems and analog audio processing devices. This integrated circuit integrates important functions, including Dolby noise reduction, automatic level control, and current bias control, making it an essential component for achieving high-quality sound reproduction and recording in consumer electronics.
Its compact design, low power consumption, and excellent analog audio performance make it ideal for use in high-quality audio systems, particularly in stereo Hi-Fi equipment and cassette recorders.
Specifications
Features:
Dolby B/C (NR) stereo noise reduction system
-
- Dolby HX Pro surround expansion control
- Recording equalization (EQ)
- Automatic gain control (AGC) for recording and playback
- Operating voltage:
- Single power supply: 5 V
- Audio performance:
- Low total harmonic distortion (THD): typical value <0.03%
- Wide dynamic range: >80 dB (Dolby C)
- Signal-to-noise ratio (SNR): >80 dB (Dolby B/C enabled)
- Control interface:
- Logic level control for mode selection (recording/playback, Dolby B/C, HX Pro enabled/disabled)
- Body:
- Flat body with 24 pins (FP type)
- Temperature range:
- Commercial: 0 °C to +70 °C
🔗 Overview of Renesas audio signal processing ICs
Key features
- ✅ Integrated Dolby B-C noise reduction system for improved reproduction clarity
- ✅ Integrated Dolby HX Pro control for expanded recording space
- ✅ Low noise and distortion, suitable for Hi-Fi audio systems
- ✅ Automatic level control ensures consistent recording quality
- ✅ Compact 24-pin FP package, suitable for space-saving PCB layout
- ✅ Optimized for cassette players, also compatible with other analog audio systems
Areas of application HA12181FP-E
- Stereo cassette players
The HA12181FP-E has been specially designed for high-quality stereo cassette players and offers:
- Dolby B/C noise reduction during playback and recording
- Dynamic main channel management with Dolby HX Pro
- Precise balance for cassette types (standard, chrome, metal)
This integrated connection enables clear reproduction and high-quality recording of cassettes.
- Mini components and high-quality stereo systems
In high-quality mini systems and integrated sound centers, this integrated connection improves sound fidelity in the following ways:
- Reduces tape noise and background noise
- Maintains dynamic range across different playback sources
- Provides a smooth and even listening experience
- Portable cassette decks and MP3 players
The compact portable audio player utilizes the low power consumption of the integrated circuit and high signal-to-noise ratio to ensure:
- Long battery life
- Consistent sound quality during mobile use
- Reliable mobile recording function
- Professional audio equipment
For studio recorders and archiving equipment, the HA12181FP-E offers:
- precise audio signal processing, suitable for master recordings
- support for multiple cassette standards and Dolby mode
- stable operation during continuous use
Why choose DRex Electronics for your HA12181FP-E purchase?
DRex Electronics focuses on supplying older audio ICs, signal processors, and analog components (e.g., HA12181FP-E) to OEM manufacturers, repair service providers, and professional audio equipment manufacturers.
Why choose DRex?
- ✅ Access to a wide selection of older audio ICs and components
- ✅ ISO 9001-certified purchasing and quality control process
- 📦 Fast worldwide delivery for both small and large shipments
- 🔧 Component selection, replacement and technical support for system integration
- 🌍 Support for professional audio projects, repairs, and older designs
