ADV7190KST Analog Devices Inc, ADV7190KST Datasheet - Page 11

• Manufacturer Part Number: ADV7190KST
• Manufacturer: Analog Devices Inc

Specifications of ADV7190KST

• Number Of Dac's: 6
• Adc/dac Resolution: 10b
• Screening Level: Commercial
• Package Type: LQFP
• Pin Count: 64
• Lead Free Status / RoHS Status: Not Compliant

(continued from page 1)
GENERAL DESCRIPTION
The ADV7190/ADV7191 is an integrated Digital Video Encoder
that converts digital CCIR-601/656 4:2:2 8-bit or 16-bit com-
ponent video data into a standard analog baseband television
signal compatible with worldwide standards.
REV. B
DETAILED DESCRIPTION OF FEATURES
Clocking:
Advanced Power Management
Programmable Video Control Features:
Average Brightness Detection
Field Counter
Interlaced/Noninterlaced Operation
Complete On-Chip Video Timing Generator
Programmable Multimode Master/Slave Operation
CGMS (Copy Generation Management System)
WSS (Wide Screen Signaling)
Macrovision 7.1 Rev (ADV7190 Only)
Closed Captioning Support
Teletext Insertion Port (PAL-WST)
2-Wire Serial MPU Interface
I
2
CLKOUT
C Registers Synchronized to VSYNC
TTXREQ
Single 27 MHz Clock Required to Run the Device
4
Square Pixel Operation
Digital Noise Reduction
Pedestal level
Hue, Brightness, Contrast and Saturation
Clamping Output Signal
VBI (Vertical Blanking Interval)
Subcarrier Frequency and Phase
LUMA Delay
CHROMA Delay
Gamma Correction
Luma and Chroma Filters
Luma SSAF (Super Subalias Filter)
HSYNC
VSYNC
BLANK
RESET
CLKIN
TTX
P15
P0
Oversampling with Internal 54 MHz PLL
10
PAL_NTSC
10 10
MATRIX
DEMUX
YCrCb
YUV
VIDEO TIMING
TO
GENERATOR
Y
U
V
10
10
10
VSO/CLAMP
INSERTION
TELETEXT
BLOCK
CORRECTION
PLL
GAMMA
DNR
AND
CSO_HSO
Y
U
V
10
10
ADV7190/ADV7191
10
Figure 4. Detailed Functional Block Diagram
INTERPOLATOR
INTERPOLATOR
CLOSED CAPTIONING
BRIGHTNESS
SATURATION
ADD BURST
ADD SYNC
CONTROL
CONTROL
CGMS/WSS
AND
AND
AND
AND
CONTROL
AND
PROGRAMMABLE
PROGRAMMABLE
SCRESET/RTC/TR
LUMA FILTER
SHARPNESS
REAL-TIME
CONTROL
CHROMA
CIRCUIT
FILTER
FILTER
SCL
AND
–11–
I
2
C MPU PORT
Six DACs are available on the ADV7190/ADV7191, each of which
is capable of providing 4.33 mA of current. In addition to the
composite output signal there is the facility to output S-Video
(Y/C Video), RGB Video and YUV Video. All YUV formats
(Betacam, MII and (SMPTE/EBU N10) are supported.
Digital Noise Reduction allows improved picture quality in remov-
ing low amplitude, high frequency noise. The block diagram below
shows the DNR functionality in the two modes available.
Y DATA
Y DATA
SDA
Figure 5. Block Diagram for DNR Mode and DNR Sharpness
Mode
INPUT
INPUT
ALSB
NOISE SIGNAL PATH
NOISE SIGNAL PATH
HUE CONTROL
MODULATOR
DNR SHARPNESS MODE
MAIN SIGNAL PATH
MAIN SIGNAL PATH
SIN/COS
YUV-TO-RGB
BLOCK
YUV LEVEL
AND
INPUT FILTER
INPUT FILTER
CONTROL
DDS
MATRIX
BLOCK
AND
BLOCK
BLOCK
DNR MODE
BLOCK SIZE CONTROL
BORDER AREA
BLOCK OFFSET
BLOCK SIZE CONTROL
BORDER AREA
BLOCK OFFSET
DNR CONTROL
DNR CONTROL
M
U
R
L
T
P
L
E
X
E
I
FILTER OUTPUT
FILTER OUTPUT
<THRESHOLD?
>THRESHOLD?
FILTER OUTPUT>
FILTER OUTPUT<
ADV7190/ADV7191
THRESHOLD
THRESHOLD
N
T
E
R
P
O
L
A
T
O
R
I
CORING GAIN DATA
CORING GAIN BORDER
CORING GAIN DATA
CORING GAIN BORDER
N
R
O
A
O
R
T
E
P
L
T
I
SUBTRACT SIGNAL IN THRESHOLD
RANGE FROM ORIGINAL SIGNAL
ADD SIGNAL ABOVE THRESHOLD
RANGE TO ORIGINAL SIGNAL
CONTROL
CONTROL
10-BIT
10-BIT
10-BIT
10-BIT
10-BIT
10-BIT
BLOCK
BLOCK
DAC
DAC
DAC
DAC
DAC
DAC
GAIN
GAIN
DAC
DAC
DAC A
DAC B
DAC C
V
R
COMP2
DAC D
DAC F
DAC E
R
COMP1
REF
SET2
SET1
DNR OUT
DNR OUT