AD9889 Ver la hoja de datos (PDF) - Analog Devices
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AD9889 Datasheet PDF : 48 Pages
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AD9889
YCbCr 4:2:2 Formats (24 Bits, 20 Bits, or 16 Bits) with Embedded Syncs, Input ID = 2
An input with YCbCr 4:2:2 with embedded syncs can be selected by setting the input ID (R0x15[3:1]) to 0b010. HS YNC and VSYNC are
embedded as Start of Active Video (SAV) and End of Active Video (EAV). The input CS (R0x16[0]) must be set to 0b1 for proper
operation. The data bit width (24 = 12 bits, 20 = 10 bits, or 16 = 8 bits) must be set with R0x16[5:4]. The three input pin assignment styles
are shown in Table 12. The input style can be set in R0x16[3:2]. The only difference between Input ID 1 and Input ID 2 is that the syncs
on ID 2 are embedded in the data much like ITU 656 running at 1× clock and double width.
Table 12.
Data <23:0>
Input Format 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Style 1
YCbCr 4:2:2 Sep. Cb[11:4]
Y[11:4]
Cb[3:0]
Y[3:0]
Sync (24 bit)
Cr[11:4]
Y[11:4]
Cr[3:0]
Y[3:0]
YCbCr 4:2:2 Sep. Cb[9:2]
Y[9:2]
Cb[1:0]
Y[1:0]
Sync (20 bit)
Cr[9:2]
Y[9:2]
Cr[1:0]
Y[1:0]
YCbCr 4:2:2 Sep. Cb[7:0]
Y[7:0]
Sync (16 bit)
Cr[7:0]
Y[7:0]
Style 2
24-bit
Cb[11:0]
Y[11:0]
Cr[11:0]
Y[11:0]
20-bit
Cb[9:0]
Y[9:0]
Cr[9:0]
Y[9:0]
16-bit
Cb[7:0]
Y[7:0]
Cr[7:0]
Y[7:0]
Style 3
24-bit
Y[11:0]
Cb[11:0]
Y[11:0]
Cr[11:0]
20-bit
Y[9:0]
Cb[9:0]
Y[9:0]
Cr[9:0]
16-bit
Y[7:0]
Cb[7:0]
Y[7:0]
Cr[7:0]
YCbCr 4:2:2 Formats (Double Data Rate) Formats (12, 10, or 8 bits) with Separate Syncs, Input ID = 3
An input with YCbCr 4:2:2 DDR data and separate syncs can be selected by setting the input ID (R0x15[3:1]) to 0b011. The input CS
(R0x16 [0]) must be set to 0b1. The data bit width (12 bits, 10 bits, or 8 bits) must be set with R0x16[5:4]. The two input pin assignment
styles are shown in Table 13. The input style can be set in R0x16[3:2].
Table 13.
Data <23:0>
Input Format 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Style 1
12-bit
Cb/Y/Cr/Y[11:4]
[3:0]
10-bit
Cb/Y/Cr/Y[9:2]
[1:0]
8-bit
Cb/Y/Cr/Y[7:0]
Style 2
12-bit
Cb/Y/Cr/Y[11:0]
10-bit
Cb/Y/Cr/Y[9:0]
8-bit
Cb/Y/Cr/Y[7:0]
Rev. 0 | Page 11 of 48
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