EVAL-ADV7180LFEBZ Analog Devices Inc, EVAL-ADV7180LFEBZ Datasheet - Page 42

• Manufacturer Part Number: EVAL-ADV7180LFEBZ
• Description: BOARD EVAL FOR ADV7180 LFCSP
• Manufacturer: Analog Devices Inc

Specifications of EVAL-ADV7180LFEBZ

• Main Purpose: Video, SDTV Video Decoder - NTSC, PAL, SECAM
• Embedded: No
• Utilized Ic / Part: ADV7180
• Primary Attributes: CVBS (Composite), Y/C (S-video), and YPrPb (Component) Inputs
• Secondary Attributes: 8-bit ITU-R BT.656 YCrCb 4:2:2 Output
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ADV7180
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:
•
•
•
See Table 107 for programming details.
Bypass mode
NTSC, consists of three filter characteristics
PAL, consists of three filter characteristics
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–10
–12
–2
–4
–6
–8
–2
–4
–6
–8
6
4
2
0
6
4
2
0
2.0
3.0
IF COMP FILTERS NTSC ZOOMED AROUND FSC
Figure 32. NTSC IF Filter Compensation
IF COMP FILTERS PAL ZOOMED AROUND FSC
Figure 33. PAL IF Filter Compensation
2.5
3.5
3.0
4.0
FREQUENCY (MHz)
FREQUENCY (MHz)
3.5
4.5
4.0
5.0
4.5
5.5
5.0
6.0