LM3065N TV Sound System IC DIP-14
LM3065N TV Sound System IC DIP-14 integrates a multistage IF amplifier, FM detector, electronic volume control, and audio driver.
65.00 EGP
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LM3065N TV Sound System IC DIP-14 is a monolithic integrated circuit developed for television sound processing applications. It combines a multistage IF amplifier limiter, FM detector, electronic attenuator for volume control, internal Zener-regulated power supply, and an audio amplifier driver capable of directly driving an external NPN power transistor or high-transconductance tube. Its highly integrated architecture minimizes the number of required external components while delivering high sensitivity, excellent AM rejection, low harmonic distortion, and stable operation. The LM3065N is well suited for analog television receivers, TV audio circuits, and vintage electronic equipment requiring reliable sound signal processing.
Features
- Monolithic television sound system IC.
- Integrated multistage IF amplifier limiter.
- Built-in FM detector for TV audio demodulation.
- Electronic attenuator replaces conventional volume control.
- Internal zener regulated power supply.
- Integrated audio amplifier driver.
- High sensitivity of 200µV at 4.5MHz.
- Excellent 50dB AM rejection.
- Low harmonic distortion.
- Requires minimal external components.
- Stable and reliable analog performance.
- Standard DIP-14 through-hole package.
Specifications
| Parameter | Details |
|---|---|
| Product Type | TV Sound System IC |
| Part Number | LM3065N |
| Package Type | DIP-14 |
| Mounting Type | Through Hole |
| Technology | Monolithic Bipolar IC |
| Function | Television Sound Processor |
| IF Amplifier | Multistage Limiter |
| FM Detector | Integrated |
| Volume Control | Electronic Attenuator |
| Audio Driver | Integrated |
| Power Supply | Internal Zener Regulator |
| Operating Voltage | 11.2VDC Typical |
| Operating Voltage Range | 10.3VDC~12.2VDC |
| Supply Current | 16mA Typical |
| Supply Current Range | 10mA~24mA |
| AM Rejection Ratio (4.5MHz) | 50dB Typical |
| Limiting Sensitivity (3dB Knee) | 200µV Typical |
| Output Drive Current | 6mAp-p |
| Maximum Undistorted Audio Output | 7Vp-p |
| Equivalent Part | CA3065 |
Pin Configuration
| Pin Number | Pin Name | Function / Description |
|---|---|---|
| 1 | IF Input | Audio IF signal input. |
| 2 | IF Stage | IF amplifier stage connection. |
| 3 | GND | Ground reference. |
| 4 | FM Detector | FM detector input. |
| 5 | Detector Output | Demodulated audio output. |
| 6 | De-emphasis | Audio de-emphasis network. |
| 7 | Volume Control | Electronic attenuator control input. |
| 8 | Audio Input | Audio amplifier input. |
| 9 | Audio Driver | Audio driver output stage. |
| 10 | Audio Output | Audio output connection. |
| 11 | Supply Filter | Regulated supply filter connection. |
| 12 | VCC | Positive supply voltage. |
| 13 | IF Output | IF stage output. |
| 14 | Bias | Internal bias connection. |
Connection Diagram
Applications
- Television sound systems.
- Analog television receivers.
- TV audio IF processing circuits.
- FM audio demodulation circuits.
- Television audio amplifier stages.
- Consumer television equipment.
- Audio signal processing circuits.
- Vintage television restoration.
- Broadcast receiver audio systems.
- Analog electronic projects.
- Educational electronics laboratories.
- Television repair and servicing.
Package Contents
- 1 x LM3065N TV Sound System IC DIP-14