ADV7344 Ver la hoja de datos (PDF) - Analog Devices

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ADV7344

Multiformat Video Encoder Six 14-Bit Noise Shaped Video DACs

Analog Devices 

Data Sheet

GENERAL DESCRIPTION

The ADV7344 is a high speed, digital-to-analog video encoder

in a 64-pin LQFP package. Six high speed, NSV, 3.3 V, 14-bit

video DACs provide support for composite (CVBS), S-Video

(YC), and component (YPrPb/RGB) analog outputs in standard

definition (SD), enhanced definition (ED), or high definition

(HD) video formats.

The ADV7344 has a 30-bit pixel input port that can be configured

in a variety of ways. SD video formats are supported over an

SDR interface and ED/HD video formats are supported over

SDR and DDR interfaces. Pixel data can be supplied in either

the YCrCb or RGB color space.

The ADV7344 also supports embedded EAV/SAV timing codes,

external video synchronization signals, and I2C® communication

protocol.

In addition, simultaneous SD and ED/HD input and output is

supported. Full-drive DACs ensure that external output buffering

is not required, while 216 MHz (SD and ED) and 297 MHz

(HD) oversampling ensures that external output filtering is not

required.

Cable detection and DAC autopower-down features keep power

consumption to a minimum.

Table 1 lists the video standards directly supported by the

ADV7344.

ADV7344

Table 1. Standards Directly Supported by the ADV7344

Active

Frame

Clock Input

Resolution I/P1 Rate (Hz) (MHz)

Standard

720 × 240 P 59.94

27

720 × 288 P 50

27

720 × 480 I 29.97

27

ITU-R

BT.601/656

720 × 576 I 25

27

ITU-R

BT.601/656

640 × 480 I 29.97

24.54

NTSC Square

Pixel

768 × 576 I 25

29.5

PAL Square

Pixel

720 × 483 P 59.94

27

SMPTE 293M

720 × 483 P 59.94

27

BTA T-1004

720 × 483 P 59.94

27

ITU-R BT.1358

720 × 576 P 50

27

ITU-R BT.1358

720 × 483 P 59.94

27

ITU-R BT.1362

720 × 576 P 50

27

ITU-R BT.1362

1920 × 1035 I 30

74.25

SMPTE 240M

1920 × 1035 I 29.97

74.1758

SMPTE 240M

1280 × 720 P

60, 50, 30, 74.25

25, 24

SMPTE 296M

1280 × 720 P

23.97,

59.94,

29.97

74.1758

SMPTE 296M

1920 × 1080 I 30, 25

74.25

SMPTE 274M

1920 × 1080 I 29.97

74.1758

SMPTE 274M

1920 × 1080 P 30, 25, 24 74.25

SMPTE 274M

1920 × 1080 P

23.98,

29.97

74.1758

SMPTE 274M

1920 × 1080 P 24

74.25

ITU-R BT.709-5

1 I = interlaced, P = progressive.

Rev. B | Page 5 of 108

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