Examples For 27 Mhz Clock - Analog Devices ADV7181BCP Manual

ADV7181B

EXAMPLES FOR 27 MHz CLOCK

Mode 1 CVBS Input (Composite Video on AIN6)
All standards are supported through autodetect, 8-bit, 4:2:2, ITU-R BT.656 output on P15 to P8.
Table 90. Mode 1 CVBS Input
Register Address
0x15
0x17
0x3A
0x50
0xC3
0xC4
0x0E
0x50
0x52
0x58
0x77
0x7C
0x7D
0xD0
0xD5
0xD7
0xE4
0xEA
0xE9
0x0E
Mode 2 S-Video Input (Y on AIN1 and C on AIN4)
All standards are supported through autodetect, 8-bit, ITU-R BT.656 output on P15 to P8.
Table 91. Mode 2 S-Video Input
Register Address
0x00
0x15
0x3A
0x50
0xC3
0xC4
0x0E
0x50
0x52
0x58
0x77
0x7C
0x7D
0xD0
0xD5
0xD7
0xE4
0xE9
0xEA
0x0E
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Register Value Notes
0x00 Slow down digital clamps.
0x41 Set CSFM to SH1.
0x16 Power down ADC 1 and ADC 2.
0x04 Set DNR threshold.
0x05 Manual mux AIN6 to ADC0 (0101).
0x80 Enable manual muxing.
0x80 ADI recommended programming sequence. This sequence must be followed exactly when
setting up the decoder.
0x20 Recommended setting.
0x18 Recommended setting.
0xED Recommended setting.
0xC5 Recommended setting.
0x93 Recommended setting.
0x00 Recommended setting.
0x48 Recommended setting.
0xA0 Recommended setting.
0xEA Recommended setting.
0x3E Recommended setting.
0x0F Recommended setting.
0x3E Recommended setting
0x00 Recommended setting.
Register Value Notes
0x06 S-Video input.
0x00 Slow down digital clamps.
0x12 Power down ADC 2.
0x04 Set DNR threshold.
0x41 Manual mux AIN2 to ADC0 (0001), AIN4 to ADC1 (0100).
0x80 Enable manual muxing.
0x80 ADI recommended programming sequence. This sequence must be followed exactly when
setting up the decoder.
0x20 Recommended setting.
0x18 Recommended setting.
0xED Recommended setting.
0xC5 Recommended setting.
0x93 Recommended setting.
0x00 Recommended setting.
0x48 Recommended setting.
0xA0 Recommended setting.
0xEA Recommended setting.
0x3E Recommended setting.
0xE3 Recommended setting
0x0F Recommended setting.
0x00 Recommended setting.
Rev. B | Page 92 of 100