Description
The CXA1124AS is an original, vintage bipolar monolithic integrated circuit (IC) manufactured by Sony Corporation, cataloged under the official Sony service part number 8-752-035-71. Housed in a 42-pin Shrink Dual In-Line Package (SDIP), this highly specialized chip is designed for Multi-channel Television Sound (MTS) audio multiplexing systems.
Key Features & Specifications:
- Function: US Audio Multiplexing Decoder & dbx-TV Noise Reduction Decoder
- Integrated Topography: Combines a pilot-cancel stereo signal demodulator, a SAP (Second Audio Program) signal demodulator, and a dbx-TV noise reduction system on a single chip.
- Package Type: 42-Pin SDIP (Shrink DIP Plastic Package)
- Technical Advancements: Utilizes active integrated filtering tech to minimize external components and offers automatic ON/OFF transition during SAP broadcasts.
- Applications: Heavily deployed in high-end, vintage stereo-capable CRT televisions (such as the Sony Trinitron KV series), legacy VCR systems, and specific analog communication transceivers.
- Manufacturer: Sony Corporation (Japan)
A pristine, authentic New-Old-Stock (NOS) replacement semiconductor module. Crucial for bench service technicians and classic television restorers diagnosing missing stereo audio, defective SAP operations, or total audio signal processing failures in vintage analog video gear.

