LM3065N IC
LM3065N – National Semiconductor monolithic IC for TV sound systems, integrating IF amplifier, FM detector, and electronic volume control in 14-pin DIP package.
65.00 EGP
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The LM3065N is a monolithic integrated circuit (IC) from National Semiconductor, primarily designed to serve as a complete TV Sound Subsystem for television and FM receiver applications. It combines multiple high-performance functions into a single 14-pin package, significantly reducing external component count and simplifying circuit design.
Features:
- Electronic attenuator replaces conventional mechanical AC volume control for cleaner audio adjustment
- Wide attenuation range greater than 60dB
- High sensitivity with 3dB limiting voltage of 200μV at 4.5MHz
- Excellent AM rejection ratio of 50dB at 4.5MHz
- Low harmonic distortion in audio output stage
- Provides precise, noise-free volume control
Specifications:
| Parameter | Value |
|---|---|
| Package Type | 14-Pin PDIP |
| Equivalent Part | CA3065 |
| Supply Voltage Range | 12V to 24V |
| Limiting Sensitivity (3dB Knee) | 200 μV |
| AM Rejection Ratio (4.5MHz) | 50 dB |
| Maximum Undistorted Audio Output | 7 V<sub>P-P</sub> |
| Output Drive Current | 6 mA<sub>P-P</sub> |
| Operating Temperature Range | -40°C to +85°C |
Applications:
- Television (TV) sound system processing at 4.5MHz (US standard) or 5.5MHz (European/other standards)
- FM radio communication receivers and tuner circuits
- General-purpose FM IF and detector stages
- Audio preamplifier and driver applications with integrated volume control
Package Include:
1x LM3065N IC
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