Description
The CXA1124BS is an original vintage bipolar silicon monolithic integrated circuit (IC) manufactured by Sony Corporation. Housed in a 42-pin Shrink Dual In-Line Package (SDIP-42), this highly complex semiconductor operates as a single-chip US Audio Multiplexing Decoder designed specifically for television Multi-channel Television Sound (MTS) systems.
Key Features & Specifications:
- Core Function: Complete television MTS Stereo and SAP (Second Audio Program) Demodulator on a single chip.
- Reference Threshold: Optimized for a 100% main reference input level of 245mVrms.
- Integrated Technology: Features an onboard licensed dbx-TV noise reduction decoder module and integrated active filtering that eliminates the need for bulky external filter blocks.
- Advanced Processing: Employs an internal, adjustment-free pilot cancel circuit and a quasi-sine wave stereo demodulator to maximize channel separation while minimizing harmonic distortion.
- Package Type: 42-Pin Plastic SDIP (Through-Hole Shrink DIP).
- Applications: Heavily deployed across high-end vintage analog CRT television mainboards, stereophonic VCR decks, and legacy projection monitors from the late 1980s and 1990s (including original configurations by Sony, Sanyo, Fisher, and associated chassis OEMs).
- Manufacturer: Sony Corporation (Japan)
An authentic, rare New-Old-Stock (NOS) structural replacement component. Crucial for bench electronics technicians, retro gaming enthusiasts, and vintage TV restorers looking to fix missing or buzzing stereo channels, unresponsive SAP sub-carrier operations, or total analog sound multiplex decoding failures.