ADV7172KST Analog Devices Inc, ADV7172KST Datasheet - Page 11

• Manufacturer Part Number: ADV7172KST
• Manufacturer: Analog Devices Inc

Specifications of ADV7172KST

• Number Of Dac's: 6
• Adc/dac Resolution: 10b
• Screening Level: Commercial
• Package Type: LQFP
• Pin Count: 48
• Lead Free Status / RoHS Status: Not Compliant

(continued from page 2)
INTERNAL FILTER RESPONSE
The Y Filter supports several different frequency responses,
including two low-pass responses, two notch responses, an
Extended (SSAF) response with or without gain boost/attenuation,
a CIF response and a QCIF response. The UV Filter supports
several different frequency responses, including four low-pass
responses, a CIF response and a QCIF response. These can be
seen in Figures 4 to 18.
–10
–20
–30
–40
–50
–60
–70
0
0
2
LOW-PASS (NTSC)
LOW-PASS (PAL)
NOTCH (NTSC)
NOTCH (PAL)
EXTENDED (SSAF)
CIF
QCIF
1.3MHz LOW PASS
0.65MHz LOW PASS
1.0MHz LOW PASS
2.0MHz LOW PASS
RESERVED
CIF
QCIF
FILTER TYPE
FILTER TYPE
4
FREQUENCY – MHz
6
MR04
MR07
8
FILTER SELECTION
FILTER SELECTION
0
0
0
0
1
1
1
0
0
0
0
1
1
1
MR06
MR03
10
0
0
1
1
0
0
1
0
0
1
1
0
0
1
MR05
MR02
12
0
1
0
1
0
1
0
0
1
0
1
0
1
0
PASSBAND RIPPLE
PASSBAND RIPPLE
0.084
MONOTONIC
MONOTONIC
0.0645
0.084
MONOTONIC
0.091
0.15
0.015
0.095
0.051
0.018
MONOTONIC
(dB)
(dB)
In Extended Mode there is the option of twelve responses
in the range from –4 dB to +4 dB. The desired response can
be chosen by the user by programming the correct value via
the I
Figures 19 to 21.
3 dB BANDWIDTH
3 dB BANDWIDTH
2
C. The variation of frequency responses can be seen in
4.157
4.74
6.54
6.24
6.217
3.0
1.5
1.395
0.65
1.0
2.2
0.7
0.5
(MHz)
(MHz)
–10
–20
–30
–40
–50
–60
–70
0
0
CUTOFF (MHz)
CUTOFF (MHz)
2
STOPBAND
STOPBAND
7.37
7.96
8.3
8.0
8.0
7.06
7.15
3.01
3.64
3.73
5.0
3.01
4.08
4
FREQUENCY – MHz
ATTENUATION (dB)
ATTENUATION (dB)
ADV7172/ADV7173
6
STOPBAND
STOPBAND
–56
–64
–68
–66
–61
–61
–50
–45
–58.5
–49
–40
–45
–50
8
10
12