M52036SP Datasheet, PDF (9/14 Pages) Renesas Technology Corp – SYNC SIGNAL PROCESSOR

M52036SP
2) Comp Sync/H sync, V sync input
Connect the composite sync input to pin [6]. For the separate sync input, connect H and V to pins[6] and [8]
respectively. The bias and impedance at pins [6] and [8] are 6 V and 10 kΩ, respectively.
Waveform shaping and polarity detection are performed by a double threshold converter installed inside.
The internal circuit is as shown in Fig.B. The average DC voltage is set to approximately 0.7 V higher and lower
than V₂.
Thus, as shown in Fig. A, this processor is energized by an input signal 0.7 Vp-p or over when the duty ratio is
small. On the other hand, approximately 1.4 Vp-p is suitable when the duty ratio is large. Fig. C indicates an
allowable standard value for the input duty.
Rev.1.0, Sep.22.2003, page 9 of 13