TDA9605H Integrated Circuit

The TDA9605H is an integrated circuit (IC) originally manufactured by Philips Semiconductors (now NXP), commonly used as a video/audio signal demodulator and processor for traditional TV and CRT/LCD monitor applications.

Below is a summary of the main technical specifications extracted from the official documentation:

1. Main Function

• Chip: Video/IF (Intermediate Frequency) processor and demodulator for multi-standard television standards (B/G, D/K, I, L/L').

2. Key Technical Characteristics

• Power Supply: Typically 5V (logic/digital part) and 8V (analogue/RF part).
• IF Input (Intermediate Frequency): Supports standard audio and video IF frequencies (e.g. 38.9 MHz, 33.4 MHz, etc.).
• Video Demodulation: Synchronous PLL (Phase-Locked Loop) for AM demodulation (terrestrial TV standards).
• Audio Demodulation: FM/AM for managing the sound section (NICAM, A2, BTSC depending on the version/configuration).
• Control: I²C bus interface for configuring internal parameters (volume, tuning, filters, etc.).
• Outputs:
  • Composite video signal (CVBS).
  • Line audio outputs (Baseband).

3. Package

• Encapsulation type: 44-pin QFP (Quad Flat Package) (hence the letter "H", which at Philips usually indicated QFP packages).

4. Typical Applications

• Mid-to-high-end cathode-ray tube (CRT) televisions.
• Industrial or professional monitors with an integrated analogue TV receiver.

Note: As this is a discontinued (obsolete) component, availability is limited to the spare parts market or old stock.