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ADV7180WBCPZ-REEL View Datasheet(PDF) - Analog Devices

Part Name
Description
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ADV7180WBCPZ-REEL
ADI
Analog Devices ADI
ADV7180WBCPZ-REEL Datasheet PDF : 120 Pages
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Data Sheet
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 32 and Figure 33 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.
ADV7180
IF COMP FILTERS NTSC ZOOMED AROUND FSC
6
4
2
0
–2
–4
–6
–8
–10
–12
2.0
2.5
3.0
3.5
4.0
4.5
5.0
FREQUENCY (MHz)
Figure 32. NTSC IF Filter Compensation
IF COMP FILTERS PAL ZOOMED AROUND FSC
6
4
2
0
–2
–4
–6
–8
3.0
3.5
4.0
4.5
5.0
5.5
6.0
FREQUENCY (MHz)
Figure 33. PAL IF Filter Compensation
Rev. G | Page 43 of 120
 

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