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参数资料
| 型号： | TVP5146M2PFPG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 颜色信号转换 |
| 英文描述： | COLOR SIGNAL DECODER, PQFP80 |
| 封装： | GREEN, PLASTIC, HTQFP-80 |
| 文件页数： | 79/107页 |
| 文件大小： | 1427K |
| 代理商： | TVP5146M2PFPG4 |
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Functional Description
65
SLES141B—August 2007
TVP5146M2PFP
2.11.72 VDP TTX Filter and Mask Registers
Subaddress
B1h
B2h
B3h
B4h
B5h
B6h
B7h
B8h
B9h
BAh
Default
00h
Subaddress
7
6
5
4
3
2
1
0
B1h
Filter 1 mask 1
Filter 1 pattern 1
B2h
Filter 1 mask 2
Filter 1 pattern 2
B3h
Filter 1 mask 3
Filter 1 pattern 3
B4h
Filter 1 mask 4
Filter 1 pattern 4
B5h
Filter 1 mask 5
Filter 1 pattern 5
B6h
Filter 2 mask 1
Filter 2 pattern 1
B7h
Filter 2 mask 2
Filter 2 pattern 2
B8h
Filter 2 mask 3
Filter 2 pattern 3
B9h
Filter 2 mask 4
Filter 2 pattern 4
BAh
Filter 2 mask 5
Filter 2 pattern 5
For an NABTS system, the packet prefix consists of five bytes. Each byte contains 4 data bits (D[3:0])
interlaced with 4 Hamming protection bits (H[3:0]):
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
D3
H3
D2
H2
D1
H1
D0
H0
Only data portion D[3:0] from each byte is applied to a teletext filter function with corresponding pattern bits
P[3:0] and mask bits M[3:0] (see Figure 221). The filter ignores the Hamming protection bits.
For WST system (PAL or NTSC), the packet prefix consists of two bytes. The two bytes contain three bits of
magazine number (M[2:0]) and five bits of row address (R[4:0]), interlaced with eight Hamming protection bits
H[7:0]:
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
R0
H3
M2
H2
M1
H1
M0
H0
R4
H7
R3
H6
R2
H5
R1
H4
The mask bits enable filtering using the corresponding bit in the pattern register. For example, a 1 in the LSB
of mask 1 means that the filter module must compare the LSB of nibble 1 in the pattern register to the first data
bit on the transaction. If these match, then a true result is returned. A 0 in a mask bit means that the filter module
must ignore that data bit of the transaction. If all 0s are programmed in the mask bits, then the filter matches
all patterns returning a true result (default 00h).
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| TVP5146PFPRG4 | COLOR SIGNAL DECODER, PQFP80 |
| TVP5146PFP | COLOR SIGNAL DECODER, PQFP80 |
| TVP5146PFPR | COLOR SIGNAL DECODER, PQFP80 |
| TVP5146PFPG4 | COLOR SIGNAL DECODER, PQFP80 |
| TVP5147M1PFPG4 | COLOR SIGNAL DECODER, PQFP80 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TVP5146M2PFPR | 功能描述:视频 IC 10B Hi Qual Sgl-Chip Dig Vid Dec RoHS:否 制造商:Fairchild Semiconductor 工作电源电压:5 V 电源电流:80 mA 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-28 封装:Reel |
| TVP5146M2PFPRG4 | 制造商:Texas Instruments 功能描述: |
| TVP5146PFP | 功能描述:视频 IC 10B High Qual S-Chip Dig Vid Decoder RoHS:否 制造商:Fairchild Semiconductor 工作电源电压:5 V 电源电流:80 mA 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-28 封装:Reel |
| TVP5146PFP | 制造商:Texas Instruments 功能描述:IC VIDEO DECODER 10BIT 30MSPS HTQFP-80 制造商:Texas Instruments 功能描述:IC, VIDEO DECODER, 10BIT 30MSPS HTQFP-80 |
| TVP5146PFPG4 | 制造商:Texas Instruments 功能描述:10BIT VIDEO DECODER SMD HTQFP80 |
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