The MC44BC373C is a Multi-Standard, Phase-Locked Loop (PLL) tuned, Ultra High Frequency (UHF) and Very High Frequency (VHF), audio/video (A/V), high integration modulator, integrated circuit (IC). It is intended for use in VCRs, Games, and Set-Top box systems.
The MC44BC373C is compatible with the following formats:
An on-chip high-speed I2C compatible bus receiver sets the channel. It is tuned by a PLL over the full range of the UHF bands. The modulator incorporates a sound subcarrier oscillator and uses a second PLL to derive 4.5, 5.5, 6.0, and 6.5MHz subcarrier frequencies, which are selectable using the bus.
The modulation standard is chosen using a control bit that selects between System L and System B/G.
The picture-to-sound ratio may be adjusted using the bus. In addition, an on-chip video test pattern gener-ator can be switched ON with a 1KHz audio test signal.
The MC44BC373C is available in a 16-pin (SO16NB) package.
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