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ADV7321 Datasheet(PDF) 56 Page - Analog Devices |
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ADV7321 Datasheet(HTML) 56 Page - Analog Devices |
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56 / 88 page  ADV7320/ADV7321 Rev. 0 | Page 56 of 88 HD SHARPNESS FILTER AND ADAPTIVE FILTER APPLICATION EXAMPLES HD Sharpness Filter Application The HD sharpness filter can be used to enhance or attenuate the Y video output signal. The following register settings were used to achieve the results shown in Figure 74. Input data was generated by an external signal source. Table 34. Sharpness Control Address Register Setting Reference1 0x00 0xFC 0x01 0x10 0x02 0x20 0x10 0x00 0x11 0x81 0x20 0x00 a 0x20 0x08 b 0x20 0x04 c 0x20 0x40 d 0x20 0x80 e 0x20 0x22 f 1 See Figure 74. f e d a b c 1 R4 R2 CH1 500mV M 4.00 µs CH1 ALL FIELDS REF A 500mV 4.00 µs 1 R2 R1 1 CH1 500mV M 4.00 µs CH1 ALL FIELDS REF A 500mV 4.00 µs 1 9.99978ms 9.99978ms Figure 74. HD Sharpness Filter Control with Different Gain Settings for HS Sharpness Filter Gain Values |
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