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STV2239 Datasheet(PDF) 25 Page - STMicroelectronics |
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STV2239 Datasheet(HTML) 25 Page - STMicroelectronics |
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25 / 86 page  Obsolete Product(s) - Obsolete Product(s) STV224X, STV228X, STV223X - FUNCTIONAL DESCRIPTION 25/86 Shunt capacitance: CP < 7 pF, Serial resistance: RS < 70 Ω. – 3.575611 MHz XTAL specification (PAL M). Mode of operation: serial resonance (without load capacity), Motional capacitance: CM = 12fF ±2fF, Shunt capacitance: CP < 7pF, Serial resistance: RS < 70Ω. – 3.582056 MHz XTAL specification (PAL N). Mode of operation: serial resonance (without load capacity), Motional capacitance: CM = 12fF ±2fF, Shunt capacitance: CP < 7pF, Serial resistance: RS < 70Ω. 0° and ± 90° demodulation angles for PAL. Bus-controlled demodulation angles (0, 90) or (0, 104) are available in NTSC mode. Bus-controlled Hue adjustment is available in NTSC mode. 3.5.2.1 NTSC Automatic Flesh Control Two automatic flesh control characteristics are available via the bus.The normal flesh control with ±10° correction and a total action range of ±60° and the wide flesh control with ±20° correction and a total action range of ±90°. 3.5.3 SECAM Decoder The following functions are fully-integrated: Killer, PLL demodulator and De-emphasis functions. 3.5.4 Chroma Standard Identification R-Y and B-Y outputs are blanked during Color Search mode. The color is displayed only when the chroma standard has been identified. 3.5.4.1 Sequential Identification Three identification sequences: – XTAL1 (4.43 MHz) mode to identify either PAL or NTSC. – XTAL2 (3.58 MHz) mode to identify either PAL or NTSC. – SECAM mode (XTAL1 selection). In 3-crystal applications, the SECAM sequence is replaced by XTAL3 selection to identify either PAL or NTSC signals. 3.5.4.2 SECAM Identification SECAM mode is locked after two identified SE- CAM sequences. SECAM mode can be selected in 50 Hz mode on- ly. PAL/NTSC has priority over SECAM standard. |
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