ADV7150 View Datasheet(PDF) - Analog Devices

Part Name

Description

Manufacturer

ADV7150

CMOS 220 MHz True-Color Graphics Triple 10-Bit Video RAM-DAC

Analog Devices 

IOR, IOB

IOG

mA V mA V

18.62 0.698 26.67 1.000

WHITE

LEVEL

100 IRE

0 0 8.05 0.302

0

0

43 IRE

BLACK/

BLANK

LEVEL

SYNC

LEVEL

Figure 31. Composite Video Waveform SYNC

IOR, IOB, IOG

mA V

19.05 0.714

WHITE LEVEL

92.5 IRE

ADV7150

RSET (⍀)

265

280

259

Video Signal

SYNC decoded on IOG; Pedestal = 0 IRE

No SYNC decoded; Pedestal = 7.5 IRE

No SYNC decoded; Pedestal = 0 IRE

IPLL Synchronization Output Control

This output synchronization signal is used in applications where

it is necessary to synchronize multiple palette devices (ADV7150

+ ADV7151) to subpixel resolution. Each devices IPLL output

signal is in phase with its analog RGB output signal. If multiple

devices have differing output delays, the time difference can be

derived from the IPLL signals. This time difference is then used

to phase shift the CLOCK inputs on one or other of the devices

inputs.

The IPLL signal is internally triggered by either the falling edge

of SYNC or BLANK as determined by CR21 of Command

Register 2.

1.44 0.054

0

0

7.5 IRE

BLACK LEVEL

BLANK LEVEL

Figure 32. Composite Video Waveform

(Pedestal = 7.5 IRE; RSET = 280 Ω)

IOR, IOB, IOG

mA V

19.05 0.714

WHITE LEVEL

100 IRE

0

0

BLACK/ BLANK

LEVEL

Figure 33. Composite Video Waveform

(Pedestal = 0 IRE; RSET = 259 Ω)

REV. A

–25–

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