VC0736 datasheet(13/127 Pages) NEXTCHIP

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NVP6124

Data sheet

02.11.2015 (REV 0.2)

11/125

4-CH AHD2.0 RX and 9-CH Audio Codec

2.3. Analog Front End (CLAMP, PGA, Anti-aliasing Filter)

NVP6124 includes 4 Channel Analog Processing circuit that comprise anti-aliasing filter, ADC,

PGA and CLAMP. Because its design is dedicated for video application, Analog Processing

circuit does not require external reference circuit. External coupling capacitance only is needed

for NVP6124. Figure 2.2 demonstrates the bode plot of Anti-aliasing Filter. Anti-aliasing Filter is

controlled by Register and include bypass mode that

don’t have AFE filtering.

Figure 2.2. Anti-aliasing Filter characteristic

2.4. Genlock (Robust Sync Detection, Robust No-Video Detection)

NVP6124 provides a fully digital Genlocking circuitry. The digital Genlocking Circuitry use the

locking method of the timing control signals such as horizontal sync, vertical sync, and the color

subcarrier.

NVP6124 uses the proprietary Genlock mechanism for video application system.

It supports very Robust Sync Detection & Robust No-Video Detection, and it is also showed

reliable operation in Non-standard signal and Weak-signal.

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