The SONY CX20037A/CXA1237AR is a single-chip integrated circuit designed specifically for the processing of VTR (Video Tape Recorder) audio signals. It combines a frequency modulation/demodulation system with a noise reduction system to enable high-performance record and playback operations.
Key features include a built-in regulator supporting a broad power supply voltage range from 4.5V to 7.0V, low distortion characteristics, and reduced peripheral component requirements. The chip integrates multiple functions such as frequency modulation/demodulation, hold circuits, dropout detection, muting detection, amplification (PB, Line, Earphone, AGC), input selection, and a logarithmic compressing/expanding noise reduction circuit.
| Product Type | Bipolar IC for VTR audio signal processing |
|---|---|
| Power Supply Voltage Range | 4.5V to 7.0V (Single power supply) |
| Package Type | 48 pin OFP (Plastic) or VQFP (Plastic) |
It is a bipolar IC developed specifically for processing VTR audio signals to enable high performance record and playback.