參數(shù)資料
型號: EVAL-ADV7180-32EBZ
廠商: Analog Devices Inc
文件頁數(shù): 56/116頁
文件大小: 0K
描述: BOARD EVAL FOR ADV7180
標(biāo)準(zhǔn)包裝: 1
系列: Advantiv®
主要目的: 視頻,SDTV 視頻解碼器 - NTSC,PAL,SECAM
嵌入式:
已用 IC / 零件: ADV7180
主要屬性: CVBS(復(fù)合),Y/C(S 視頻)和 YPrPb(元件)輸入
次要屬性: 8 位 ITU-R BT.656 YCrCb 4:2:2 輸出
已供物品:
ADV7180
Data Sheet
Rev. I | Page 44 of 116
IF FILTER COMPENSATION
IFFILTSEL[2:0], IF Filter Select, Address 0xF8[2:0]
The IFFILTSEL[2:0] register allows the user to compensate for
SAW filter characteristics on a composite input, as would be
observed on tuner outputs. Figure 34 and Figure 35 show IF
filter compensation for NTSC and PAL, respectively.
The options for this feature are as follows:
Bypass mode
NTSC, consists of three filter characteristics
PAL, consists of three filter characteristics
See Table 107 for programming details.
6
–12
2.0
5.0
05700-
053
FREQUENCY (MHz)
AM
P
L
IT
UDE
(
d
B)
IF COMP FILTERS NTSC ZOOMED AROUND FSC
4
2
0
–2
–4
–6
–8
–10
2.5
3.0
3.5
4.0
4.5
Figure 34. NTSC IF Filter Compensation
6
–8
3.0
6.0
05700-
054
FREQUENCY (MHz)
AM
P
L
IT
UDE
(
d
B)
IF COMP FILTERS PAL ZOOMED AROUND FSC
4
2
0
–2
–4
–6
3.5
4.0
4.5
5.0
5.5
Figure 35. PAL IF Filter Compensation
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