Professional IC Distribution & Technical Solutions

The TDA9800 is a monolithic integrated circuit (IC) manufactured by Philips Semiconductors (PHI). Below are its factual specifications, descriptions, and features:

Specifications:

• Function: FM/AM IF amplifier and demodulator for TV and radio applications.
• Package: 20-pin DIP (Dual In-line Package).
• Operating Voltage: 4.5V to 8V.
• Frequency Range:
• FM IF: 4.5 MHz to 6.5 MHz.
• AM IF: 38.9 MHz.
• Low Power Consumption: Typically 70mW.
• Input Sensitivity: High sensitivity for weak signal reception.
• Demodulation: FM quadrature demodulator and AM synchronous detector.

Descriptions:

• Designed for TV and FM/AM radio IF signal processing.
• Includes an IF amplifier, demodulator, and AGC (Automatic Gain Control) circuit.
• Suitable for applications requiring high-quality audio and video demodulation.

Features:

• Integrated IF Amplifier: High-gain amplifier for improved signal reception.
• AGC Control: Ensures stable output under varying signal conditions.
• Low Noise: Optimized for minimal interference in signal processing.
• Wide Supply Voltage Range: Compatible with various power supply configurations.
• Quadrature FM Demodulator: Provides high-quality FM demodulation.
• Synchronous AM Detector: Improves AM signal clarity.

This IC is primarily used in TV tuners and radio receivers for demodulating intermediate frequency (IF) signals.