The HMP8154 and HMP8156A are NTSC and PAL encoders that are used to convert digital image data into high-quality NTSC and PAL video
The HMP8154 and HMP8156A are fully integrated NTSC and PAL video encoders that convert digital image data to high‑quality analog video signals. They accept a variety of digital input formats (YCbCr, RGB, BT.656) and provide configurable analog outputs including Y/C, composite and component RGB via SCART.
The document details functional blocks, overlay processing, optional 2× up‑scaling, flicker‑filter options (HMP8154 only), timing control, and evaluation kit information for prototype development.
| Supported video standards | NTSC and PAL (multiple PAL variants) |
|---|---|
| Digital input formats | 4:2:2 YCbCr (8‑bit or 16‑bit), 4:4:4 RGB (16‑bit 5,6,5 or 24‑bit 8,8,8), Linear or Gamma‑Corrected, 8‑bit BT.656 |
| Analog output formats | Y/C + Two Composite; RGB + Composite (SCART) |
| DAC resolution and features | Four 2× oversampling, 10‑bit DACs with power‑down capability |
| Overlay mixing options | 7 selectable colors, internal/external/hard mixing control, disabled, or no mixing |
The HMP8154 supports both NTSC and PAL standards, including multiple PAL variants.
Yes, the encoder can drive component RGB video through its DACs and the SCART connector.