The ADV7190/ADV7191 is part of the new generation of video
encoders from Analog Devices. The device builds on the perfor-
mance of previous video encoders and provides new features such
as Digital Noise Reduction, Gamma Correction, 4¥ Oversam-
pling and 54 MHz operation, Average Brightness Detection,
Chroma Delay, an additional Chroma Filter, and so on.
The ADV7190/ADV7191 supports NTSC-M, NTSC-N (Japan),
PAL N, PAL M, PAL-B/D/G/H/I, and PAL-60 standards. Input
standards supported include ITU-R.BT656/601 4:2:2 YCrCb
in 8- or 16-bit format.
The ADV7190/ADV7191 can output Composite Video (CVBS),
S-Video (Y/C), Component YUV
1
, or RGB. The analog
component output is also compatible with Betacam, MII and
SMPTE/EBU N10 levels, SMPTE 170M NTSC, and ITU-
R.BT 470 PAL.
For more information about the ADV7190/ADV7191’s features,
refer to Detailed Description.
Continued on page 11
SIMPLIFIED FUNCTIONAL BLOCK DIAGRAM
DIGITAL
INPUT
VIDEO
INPUT
PROCESSING
PLL
AND
54MHz
DEMUX
ITU–R.BT
656/601
8-BIT YCrCb
IN 4:2:2 FORMAT
AND
YCrCb–
TO–
YUV
MATRIX
COLOR CONTROL
DNR
GAMMA
CORRECTION
CHROMA
LPF
2
OVERSAMPLING
SSAF
LPF
10-BIT
DAC
10-BIT
DAC
10-BIT
DAC
10-BIT
DAC
10-BIT
DAC
10-BIT
DAC
I
2
C INTERFACE
COMPOSITE VIDEO
Y [S-VIDEO]
C [S-VIDEO]
RGB
YUV
VIDEO
SIGNAL
PROCESSING
VIDEO
OUTPUT
PROCESSING
ANALOG
OUTPUT
27MHz
CLOCK
OR
TVSCREEN
VBI
TELETEXT
CLOSED CAPTION
CGMS/WSS
MACROVISION
LUMA
LPF
4
OVERSAMPLING
ADV7190/ADV7191
1
Throughout the document, YUV refers to digital or analog component video.
The Macrovision anticopy process is licensed for noncommercial home use only, which is its sole intended use in the device. Please contact sales office for latest available Macrovision version.
ITU-R and CCIR are used interchangeably in this document (ITU-R has replaced CCIR recommendations).
SSAF is a trademark of Analog Devices Inc.
I
2
C is a registered trademark of Philips Corporation.
REV. B
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
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