tw9910_application_note.c

TW9910应用说明

TW9910B2 Application Note

This document describes revision points between TW9910A2 and new revision TW9910B2 and recommended register setting value. There will be no pin out or major feature changes. Several performance improvements are listed below.

Performance improvements
1. Improve weak signal performance
2. Improve non-standard signal performance such as VCR.
3. Better synchronization performance.
4. Add S-Video detection status
5. Add NTSC 50Hz support

Major Change of Register
1. Register 0x16 [4] – Added for S-video detect function
2. Register 0x1E [7], NT50 – Added to set for NTSC 50Hz system.
3. Register 0x2C [3 - 0] – Added peaking control function.
4. Register 0x4C [3 – 1] – PLL CP/RES Select. Recommended value 0x0D.


Recommended Register Setting
Below setting is for ITU-R656 8bit output format case.

CODE BYTE TW9910B2_CCIR_NTSC_DataSet[] = {
// Reg , Val,
0x03, 0xa2,
0x05, 0x01,
0x08, 0x13,
0x09, 0xf2,
0x19, 0x57,
0x1a, 0x0f,
0x1b, 0x00,
0x29, 0x03,
0x2d, 0x07,
0x4c, 0x0d, // for Clock PLL
0x55, 0x00,
0x6b, 0x26,
0x6c, 0x36,
0x6d, 0xF0,
0x6e, 0x28,
0x06, 0x80,
};

CODE BYTE TW9910B2_CCIR_PAL_DataSet[] = {
// Reg , Val,
0x03, 0xa2,
0x05, 0x01,
0x08, 0x19,
0x09, 0x1f,
0x19, 0x57,
0x1a, 0x0f,
0x1b, 0x00,
0x29, 0x03,
0x2d, 0x07,
0x4c, 0x0d, // for Clock PLL
0x55, 0x00,
0x6b, 0x26,
0x6c, 0x36,
0x6d, 0xf0,
0x6e, 0x28,
0x06, 0x80,
};
CODE BYTE TW9910B2_CCIR_NT50_DataSet[] = {
// Reg , Val,
0x03, 0xa2,
0x05, 0x01,
0x08, 0x19,
0x09, 0x1f,
0x19, 0x57,
0x1a, 0x0f,
0x1b, 0x00,
0x1c, 0x00, // for NT50
0x1e, 0x98, // for NT50
0x29, 0x03,
0x2d, 0x07,
0x2e, 0xaf, // for NT50
0x4c, 0x0d, // for Clock PLL
0x55, 0x00,
0x6b, 0x26,
0x6c, 0x36,
0x6d, 0xf0,
0x6e, 0x28,
0x06, 0x80,
};
* NT50 system is not supported in auto detection mode.





Pal
w 00 59
w 01 69
w 02 40
w 03 A2
w 04 00
w 05 01
w 06 00
w 07 12
w 08 19
w 09 1F
w 0A 0C
w 0B D0
w 0C CC
w 0D 00
w 0E 11
w 0F 00
w 10 00
w 11 64
w 12 11
w 13 80
w 14 80
w 15 00
w 16 00
w 17 30
w 18 44
w 19 57
w 1A 0F
w 1B C0
w 1C 17
w 1D 7F
w 1E 18
w 1F 00
w 20 50
w 21 42
w 22 F0
w 23 D8
w 24 BC
w 25 B8
w 26 44
w 27 2A
w 28 00
w 29 03
w 2A 78
w 2B 44
w 2C 30
w 2D 07
w 2E A5
w 2F E0
w 30 00
w 31 10
w 32 FF
w 33 05
w 34 1A
w 35 00
w 36 00
w 37 00
w 38 00
w 39 00
w 3A 00
w 3B 00
w 3C 00
w 3D 00
w 3E 00
w 3F 00
w 40 00
w 41 00
w 42 00
w 43 00
w 44 00
w 45 00
w 46 00
w 47 00
w 48 00
w 49 00
w 4A 00
w 4B 00
w 4C 0D
w 4D 40
w 4E 00
w 4F 00
w 50 A0
w 51 22
w 52 31
w 53 80
w 54 00
w 55 00
w 56 00
w 57 00
w 58 00
w 59 00
w 5A 00
w 5B 00
w 5C 00
w 5D 00
w 5E 00
w 5F 00
w 60 00
w 61 00
w 62 00
w 63 00
w 64 00
w 65 00
w 66 00
w 67 00
w 68 00
w 69 00
w 6A 00
w 6B 26
w 6C 36
w 6D F0
w 6E 28
w 6F 24














































Ntsc
w 00 59
w 01 68
w 02 40
w 03 A2
w 04 00
w 05 01
w 06 00
w 07 02
w 08 13
w 09 F2
w 0A 10
w 0B D0
w 0C CC
w 0D 00
w 0E 11
w 0F 00
w 10 00
w 11 64
w 12 11
w 13 80
w 14 80
w 15 00
w 16 00
w 17 30
w 18 44
w 19 57
w 1A 0F
w 1B C0
w 1C 07
w 1D 7F
w 1E 08
w 1F 00
w 20 50
w 21 42
w 22 F0
w 23 D8
w 24 BC
w 25 B8
w 26 44
w 27 2A
w 28 00
w 29 03
w 2A 78
w 2B 44
w 2C 30
w 2D 07
w 2E A5
w 2F E0
w 30 00
w 31 10
w 32 FF
w 33 05
w 34 1A
w 35 00
w 36 00
w 37 00
w 38 00
w 39 00
w 3A 00
w 3B 00
w 3C 00
w 3D 00
w 3E 00
w 3F 00
w 40 00
w 41 00
w 42 00
w 43 00
w 44 00
w 45 00
w 46 00
w 47 00
w 48 00
w 49 00
w 4A 00
w 4B 00
w 4C 0D
w 4D 40
w 4E 00
w 4F 00
w 50 A0
w 51 22
w 52 31
w 53 80
w 54 00
w 55 00
w 56 00
w 57 00
w 58 00
w 59 00
w 5A 00
w 5B 00
w 5C 00
w 5D 00
w 5E 00
w 5F 00
w 60 00
w 61 00
w 62 00
w 63 00
w 64 00
w 65 00
w 66 00
w 67 00
w 68 00
w 69 00
w 6A 00
w 6B 26
w 6C 36
w 6D F0
w 6E 28
w 6F 24