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RGB SCART TO COMPONENT/S-VIDEO/COMPOSITE PASSTHROUGH copy copy

1 year ago 231
  • Description
  • Documents
  • BOM
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Description

So the general idea is to take RGBS, 5V, GND, and audio in, divide 1.4v RGB to 0.7 and then run through an amp that can put out multiple signals (split)THS line, then feed one as an output, feed the other into a BH7236AF for conversion to S-Video/Composite, LM1881 can be added for sync stripping, also needed to pulse onto the Y out of the LT6550 (RGB to component). May be better to split luma from the BH7236AF to go to both svid and the component out and not worry about adding sync to the output.

Documents

Sheet_1 copy

BOM

ID Name Designator Footprint Quantity
1 BH7236AF SOP24 SOP24 1
2 0.1U C5 C0603 1
3 0.1u C6,C7,C8,C1 C0603 4
4 Header-Male-2.54_1x1 SCLK1,CVO1,CO1,PRO,PBO,YO HDR-1X1/2.54 6
5 NTSC JP3 SJ_2S 1
6 PAL JP4 SJ_2S 1
7 220u C9 C1411 1
8 0.47u C10 C0603 1
9 75 R13,R15,R5,R6,R16,R28 R0603 6
10 68uh L1 0805 1
11 27pf C11 C0603 1
12 22u C12 C0805 1
13 NTSC2 JP5 SJ_2S 1
14 PAL2 JP6 SJ_2S 1
15 LT6550CMS#PBF U3 MSOP10 1
16 133 R21 R0603 1
17 105 R22 R0603 1
18 261 R23 R0603 1
19 174 R24 R0603 1
20 1u C13 C0603 1
21 SYNC SYNC1 HDR-1X1/2.54 1
22 LM1881M U4 SOIC8 1
23 0.1uf C17,C18,C19 C0603 3
24 680k R30 R0603 1
25 1k R34,R36,R4,R7,R8,R9,R10,R11,R38,R40,R27,R1,R2,R3,R12,R17,R18,R14 0603 18
26 SIP1 RO1,GO1,BO1,C#O1,XS HDR1X1 5
27 THS7374 U5 TSSOP-14 1
28 CTTL JP2,JP1 SJ_2S 2
29 75 R26 R0603 1
30 JUMPER-3SMD JP7 SJ_3 1
31 100k R39 0603 1
32 6.98k R41 0603 1
33 Header 1*1P P4,P5,P6,P7,P8,P9,P10,P11,P12,P13,P14 HDR-1X1/2.54 11
34 1u C3,C15,C2 CAP-D3.0XF1.5 3

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