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參數(shù)資料
型號(hào): TPU3040PO
元件分類: 圖文
英文描述: TELETEXT DECODER, PDIP52
封裝: PLASTIC, DIP-52
文件頁數(shù): 62/72頁
文件大小: 347K
代理商: TPU3040PO
TPU 3035, TPU 3040, TPU 3050
PRELIMINARY DATA SHEET
65
Micronas
029F H
Write
ACQ STANDARD
Bit
Reset
Function
7
0
1 = CAPTION enable in field 2
0 = CAPTION disable in field 2
6
0
1 = CAPTION enable in field 1
0 = CAPTION disable in field 1
5
0
1 = VPS enable
0 = VPS disable
7 to 5
0
VPS and CAPTION cannot be used at the same time, therefore these combinations are used to enable
WSS reception on a PAL+ signal
0 =
1 = VPS
2 = CAPTION field 1
3 = WSS & VPS
4 = CAPTION field 2
5 = WSS & VPS
6 = CAPTION field 1&2
7 = WSS
4
1
1 = TTX enable
0 = TTX disable
3
1
1 = MAC VBI channel A
0 = MAC VBI channel B
2
0
1 = MAC packet acquisition enable
0 = MAC VBI acquisition enable
1
0
1 = NTSC mode
0 = PAL mode
0
1 = MAC mode
0 = composite video mode
1 to 0
0
MAC and NTSC cannot be used at the same time, therefore this combination is used to enable full VBI data
reception in Caption mode
02A0 H
Write
ACQ ANALOG MODE
Bit
Reset
Function
7
0
1 = full N clamping
(
*150 A)
0 = half N clamping
(
* 75 A)
6
1
1 = N clamping disable
0 = N clamping enable
(
*150 A if data < sync slicer level)
5
0
1 = clamping disable
0 = clamping enable
(+225
A if data = 0, *6 A static)
4 to 0
10 H
5 bit analog gain of AGC
31 = 12dB
16 = 6dB
00 = 0dB
02A3 H
Write
ACQ VIDEO INPUT
Bit
Reset
Function
0
1 = video input 2
(pin 44)
0 = video input 1
(pin 42)
02A4 H
Read
ACQ HSYNC COUNTER
Bit
Reset
Function
7 to 0
0
number of detected horizontal sync pulses per frame divided by 4
sync pulse is detected if within horizontal window of HPLL
counter is latched with vertical sync, the register can be read at any time
相關(guān)PDF資料
PDF描述
TPU3040PQ TELETEXT DECODER, PQCC44
TPU3040PK TELETEXT DECODER, PDIP40
TPU3040PO TELETEXT DECODER, PDIP52
TPU3040PQ TELETEXT DECODER, PQCC44
TPU3050PO TELETEXT DECODER, PDIP52
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