ADV7195KS Analog Devices Inc, ADV7195KS Datasheet - Page 19

• Manufacturer Part Number: ADV7195KS
• Description: IC DAC VID-HDTV 3CH-11BIT 52MQFP
• Manufacturer: Analog Devices Inc
• Type: Video Encoderr

Specifications of ADV7195KS

• Rohs Status: RoHS non-compliant
• Applications: HDTV, MPEG, Image Processing
• Voltage - Supply, Analog: 3.3V
• Voltage - Supply, Digital: 3.3V
• Mounting Type: Surface Mount
• Package / Case: 52-MQFP, 52-PQFP
• Adc/dac Resolution: 11b
• Screening Level: Commercial
• Package Type: MQFP
• Pin Count: 52
• For Use With: EVAL-ADV7195EB - BOARD EVAL FOR ADV7195
• Lead Free Status / RoHS Status: Not Compliant

Color Output Swap (MR53)
By default, DAC B is configured as the Pr output and DAC
C as the Pb output. In setting this bit to “1” the DAC out-
puts can be swapped around so that DAC B outputs Pb and
DAC C outputs Pr. Table III demonstrates this in more detail.
This control is also available in RGB mode.
Table III. Relationship Between Color Input Pixel Port, MR53
and DAC B, DAC C Outputs
In 4:4:4 Input Mode
Color Data
Input on Pins
Cr9–0
Cb/Cr9–0
Cr9-0
Cb/Cr9–0
In 4:2:2 Input Mode
Color Data
Input on Pins
Cr9–0
Cb/Cr9–0
Cb/Cr9–0
Gamma Curve (MR54)
This bit selects which of the two programmable gamma curves
is to be used. When setting MR54 to “0,” the gamma correction
curve selected is Curve A. Otherwise Curve B is selected. Each
curve will have to be programmed by the user as explained in
the Gamma Correction Registers section.
Gamma Correction (MR55)
To enable Gamma Correction, and therefore activate the gamma
curve programmed by the user, this bit must be set to “1.” Other-
wise the programmable Gamma Correction facility is bypassed.
Programming of the gamma correction curves is explained in
the Gamma Correction Registers section.
Adaptive Mode Control (MR56)
For this control to be effective, Adaptive Filter Control must be
enabled (MR57 = “1”) as well as the Sharpness Filter (MR17 =
“1”). For filter plots, refer to Sharpness Filter Control and
Adaptive Filter Control section.
MR57
ADAPTIVE FILTER
0
1
CONTROL
MODE A
MODE B
MR53
0
0
1
1
0 or 1
0
1
MR53
MR57
MR56
ADAPTIVE MODE
0
1
CONTROL
MR56
MODE A
MODE B
MR55
0
1
CORRECTION
GAMMA
DISABLE
ENABLE
Analog Output
Signal
DAC B
DAC C
DAC C
DAC B
Analog Output
Signal
Not Operational
DAC C (Pb)
DAC C (Pr)
MR55
MR54
MR54
GAMMA CURVE
0
1
CURVE A
CURVE B
MR53
COLOR OUTPUT
0
1
MR53
Adaptive Filter Control (MR57)
This bit enables the Adaptive Filter Control when set to “1.”
Sharpness Filter must be enabled as well (MR17 = “1”). The
Adaptive Filter Controls is explained in more detail under
Sharpness Filter Control and Adaptive Filter Control section.
COLOR Y
CY (CY7–CY0)
(Address (SR4–SR0) = 06H)
COLOR CR
CCR (CCR7–CCR0)
(Address (SR4–SR0) = 07H)
COLOR CB
CCB (CCB7–CCB0)
(Address (SR4–SR0) = 08H)
These three 8-bit-wide registers are used to program the output
color of the internal test pattern generator, be it the lines of the
crosshatch pattern or the uniform field test pattern and are
available in PS mode and HDTV mode.
The standard used for the values for Y and the color difference
signals to obtain white, black and the saturated primary and
complementary colors conforms to the ITU-R BT 601-4 standard.
SWAP
DAC B = Pr
DAC C = Pr
CCR7
CCB7
CY7
MR52
MR52
CCR6
CCB6
SYNC ON PrPb
0
1
CY6
DISABLE
ENABLE
MR51
0
1
CCR5
CCB5
RGB MODE
CY5
MR51
DISABLE
ENABLE
COLOR CR VALUE
COLOR CB VALUE
COLOR Y VALUE
CCR4
CCB4
CY4
CCR7 – CCR0
CCB7 – CCB0
RESERVED FOR
REVISION CODE
CY7 – CY0
MR50
MR50
CCR3
CCB3
CY3
CCR2
CCB2
CY2
ADV7195
CCR1
CCB1
CY1
CCR0
CCB0
CY0