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The TDA4500 is a small-signal processing integrated circuit developed for monochrome television receivers. It combines the receiver's main small-signal functions in a single device, with the exception of the tuner, reducing the amount of external circuitry required and leaving essentially the output stages external to the IC.
The device processes the intermediate-frequency signal and combines video, sound and synchronisation functions. These include video detection and AFC, intercarrier sound processing, volume control, inter-station sound muting and generation of the drive signals for the horizontal and vertical stages.
It provides a composite video output, a post-volume-control audio output and horizontal and vertical drive outputs. The device is supplied in a plastic DIL-28 / DIP-28 through-hole package with the SOT-117 package designation.
| Original manufacturer | Philips |
| Model | TDA4500 |
| Type | Small-signal processing IC for monochrome TV |
| Application | Monochrome television receivers |
| Integrated functions | IF, video, sound, AFC, horizontal and vertical synchronisation processing |
| Integrated tuner | No |
| Composite video output | Pin 16 |
| Audio output | Pin 12, post-volume control |
| Vertical drive output | Pin 2 |
| Vertical feedback | Pin 3 |
| Horizontal drive output | Pin 27 |
| Horizontal feedback | Pin 5 |
| Inter-station sound muting | Yes |
| Package | DIL-28 / DIP-28, SOT-117 |
| Number of pins | 28 |
| Mounting | Through-hole (THT) |
| Package material | Plastic |
| Pin pitch | 2.54 mm |
| Row spacing | 15.24 mm |
| Body dimensions | 35–36 × 13.7–14.1 mm |
| Maximum package height | 5.1 mm |
