ADV7173 datasheet(11/59 Pages) AD

No. de pieza	ADV7173

Descripción Electrónicos	Digital PAL/NTSC Video Encoder with Six DACs 10 Bits, Color Control and Enhanced Power Management

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ADV7172/ADV7173

–11–

REV. A

FILTER TYPE

FILTER SELECTION

PASSBAND RIPPLE

(dB)

3 dB BANDWIDTH

(MHz)

STOPBAND

CUTOFF (MHz)

STOPBAND

ATTENUATION (dB)

MR04

0

1

MR03

0

1

0

1

MR02

0

1

0

1

0

1

0

LOW-PASS (NTSC)

LOW-PASS (PAL)

NOTCH (NTSC)

NOTCH (PAL)

EXTENDED (SSAF)

CIF

QCIF

0.091

0.15

0.015

0.095

0.051

0.018

MONOTONIC

4.157

4.74

6.54

6.24

6.217

3.0

1.5

7.37

7.96

8.3

8.0

7.06

7.15

–56

–64

–68

–66

–61

–50

Figure 4. Luminance Internal Filter Specifications

FILTER TYPE

FILTER SELECTION

PASSBAND RIPPLE

(dB)

3 dB BANDWIDTH

(MHz)

STOPBAND

CUTOFF (MHz)

STOPBAND

ATTENUATION (dB)

MR07

0

1

MR06

0

1

0

1

MR05

0

1

0

1

0

1

0

1.3 MHz LOW PASS

0.65 MHz LOW PASS

1.0 MHz LOW PASS

2.0 MHz LOW PASS

RESERVED

CIF

QCIF

0.084

MONOTONIC

0.0645

0.084

MONOTONIC

1.395

0.65

1.0

2.2

0.7

0.5

3.01

3.64

3.73

5.0

3.01

4.08

–45

–58.5

–49

–40

–45

–50

Figure 5. Chrominance Internal Filter Specifications

FREQUENCY – MHz

0

012

2

46

8

10

–10

–20

–30

–50

–60

–40

–70

Figure 6. NTSC Low-Pass Luma Filter

FREQUENCY – MHz

0

012

2

46

8

10

–10

–20

–30

–50

–60

–40

–70

Figure 7. PAL Low-Pass Luma Filter

INTERNAL FILTER RESPONSE

The Y Filter supports several different frequency responses,

including two low-pass responses, two notch responses, an Ex-

tended (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.

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

2C. The variation of frequency responses can be seen in

Figures 19 to 21.

(continued from page 2)

Número de pieza similar - ADV7173

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Analog Devices	ADV7173	469Kb / 60P	Digital PAL/NTSC Video Encoder with Six DACs (10 Bits), Color Control and Enhanced Power Management REV. B
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	ADV7173KST-REEL	469Kb / 60P	Digital PAL/NTSC Video Encoder with Six DACs (10 Bits), Color Control and Enhanced Power Management REV. B
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