AD724JR View Datasheet(PDF) - Analog Devices

Part Name

Description

Manufacturer

AD724JR

RGB to NTSC/PAL Encoder

Analog Devices 

DG DP (NTSC) (SYNC = EXT)

FIELD = 1 LINE = 27, 100 IRE RAMP

DIFFERENTIAL GAIN (%)

MIN = –0.53

0.00

0.2

–0.16

–0.49

–0.53

0.0

–0.2

–0.4

–0.6

–0.8

DIFFERENTIAL PHASE (deg)

0.00

0.5

–0.44

MIN = –1.14

–1.14

–1.01

MAX = 0.00

–0.52

MAX = 0.00

–0.53

p–p/MAX = 0.53

–0.38

pk–pk = 1.14

–0.01

0.0

–0.5

–1.0

–1.5

1ST

2ND

3RD

4TH

5TH

6TH

Figure 10. Composite Output

Differential Phase and Gain, NTSC

DG DP (PAL) (SYNC = EXT)

LINE = 25, 700mV RAMP

DIFFERENTIAL GAIN (%)

0.3 0.00

–0.14

0.2

0.1

0.0

–0.1

–0.2

–0.3

–0.4

–0.5

DIFFERENTIAL PHASE (deg)

1.5 0.00

–1.01

1.0

0.5

0.0

–0.5

–1.0

–1.5

–2.0

1ST

2ND

MIN = –0.32

MAX = 0.10

–0.32

–0.16

0.04

MIN = –1.18

MAX = 0.70

–1.18

–0.44

0.42

3RD

4TH

5TH

Figure 11. Composite Output

Differential Phase and Gain, PAL

pk–pk = 0.42

0.10

pk–pk = 1.89

0.70

6TH

AD724

H TIMING MEASUREMENT RS–170A (NTSC)

FIELD = 1 LINE = 22

5.49␮s

4.59␮s

9.72␮s

9.0

CYCLES

100ns

124ns

39.7 IRE

33.8 IRE

AVERAGE Ն 256

Figure 12. Horizontal Timing, NTSC

H TIMING (PAL)

LINE = 25

4.60␮s

5.59␮s

2.28␮s

94ns

102ns

293.5mV

249.0mV

AVERAGE Ն 256

Figure 13. Horizontal Timing, PAL

REV. B

–7–

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