參數(shù)資料
型號： ADV7192
廠商： Analog Devices, Inc.
英文描述： Video Encoder with Six 10-Bit DACs, 54 MHz Oversampling and Progressive Scan Inputs
中文描述： 視頻編碼器與六10位DAC，54兆赫采樣和逐行掃描輸入
文件頁數(shù)： 35/69頁
文件大小： 664K
代理商： ADV7192
ADV7192
–35–
REV. 0
CLAMP/
VSO
Select (MR77)
This bit is used to select the functionality of Pin 62. Setting this
bit to 1 selects CLAMP as the output signal. A 0 selects
VSO
as the output signal. Since this pin is also shared with the TTX
functionality, TTX Input/CLAMP–
VSO
Output has to be set
accordingly (MR76).
MODE REGISTER 8
MR8 (MR87–MR80)
(Address (SR4–SR0) = 08H)
Mode Register 8 is an 8-bit-wide register. Figure 64 shows the
various operations under the control of Mode Register 8.
MR8 BIT DESCRIPTION
Progressive Scan Control (MR80)
This control enables the progressive scan inputs on pins
Y(0)/P8–Y(7)/P15, Y(8)–Y(9), Cr(0)–Cr(9), Cb(0)–Cb(9)
.
To
enable this control MR80 has to be set to 1. It is assumed that
the incoming
Y
data contains all necessary sync information.
Note: Simultaneous progressive scan input and 16-bit pixel input
is not possible.
Reserved (MR81)
A 0 must be written to this bit.
Double Buffer Control (MR82)
Double Buffering can be enabled or disabled on the Contrast
Control Register, U Scale Register, V Scale Register, Hue Adjust
Control Register, Closed Captioning Register, Brightness Control
Register, Gamma Curve Select Bit and the Macrovision Regis-
ters. Double Buffer is not available in Master Mode.
16-Bit Pixel Port (MR83)
This bit controls if the ADV7192 is operated in 8-bit or 16-bit
mode. In 8-bit mode the input data will be set up on Pins P0–P7.
Reserved (MR84)
A Logic 0 must be written to this bit.
DNR Enable Control (MR85)
To enable the DNR process this bit has to be set to 1. If this bit
is set to other DNR processing is bypassed. For further informa-
tion on DNR controls see DNR Mode Control section.
Gamma Enable Control (MR86)
To enable the programmable gamma correction this bit has
to be set to enabled (MR86 = 1). For further information on
Gamma Correction controls see Gamma Correction Registers
section.
Gamma Curve Select Control (MR87)
This bit selects which of the two programmable gamma curves is
to be used. When setting MR87 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. For further information
on Gamma Correction controls see Gamma Correction Regis-
ters section.
MODE REGISTER 9
MR9 (MR97–MR90)
(Address (SR4–SR0) = 09H)
Mode Register 9 is an 8-bit-wide register. Figure 66 shows the
various operations under the control of Mode Register 9.
MR9 BIT DESCRIPTION
Undershoot Limiter (MR90–MR91)
This control ensures that no luma video data will go below a
programmable level. This prevents any synchronization problems
due to luma signals going below the blanking level. Available
limit levels are –1.5 IRE, –6 IRE, –11 IRE. Note that this facility is
only available in 4
×
Oversampling mode (MR16 = 1). When the
device is operated in 2
×
Oversampling mode (MR16 = 0) or RGB
output without RGB sync are selected, the minimum luma level is
set in Timing Register 0, TR06 (Min Luma Control).
Black Burst Y DAC (MR92)
It is possible to output a Black Burst signal from the DAC
which is selected to be the Luma DAC (MR22, MR21, MR20).
This signal can be useful for locking two video sources together
using professional video equipment. See also Black Burst Out-
put section.
Black Burst Luma (MR93)
It is possible to output a Black Burst signal from the DAC which
is selected to be the Y-DAC (MR22, MR21, MR20). This signal
can be useful for locking two video sources together using pro-
fessional video equipment. See also Black Burst Output section.
20 IRE
0 IRE
–20 IRE
–40 IRE
21.5 IRE
0 IRE
–21.5 IRE
–43 IRE
3.58MHz
COLOR BURST
(9 CYCLES)
4.43MHz
COLOR BURST
(10 CYCLES)
NTSC BLACK BURST SIGNAL
PAL BLACK BURST SIGNAL
Figure 65. Black Burst Signals for PAL and NTSC Standards
ZERO SHOULD
BE WRITTEN
TO THIS BIT
MR84
MR87
MR86
MR85
MR84
MR83
MR82
MR81
MR80
MR83
0
1
16-PIXEL
PORT CONTROL
DISABLE
ENABLE
DNR ENABLE
CONTROL
MR85
0
DISABLE
1
ENABLE
0
1
DISABLE
ENABLE
MR82
DOUBLE BUFFER
CONTROL
0
1
DISABLE
ENABLE
MR86
GAMMA ENABLE
CONTROL
0
1
CURVE A
CURVE B
MR87
GAMMA CURVE
SELECT CONTROL
ZERO SHOULD
BE WRITTEN
TO THIS BIT
MR81
0
1
DISABLE
ENABLE
MR80
PROGRESSIVE
SCAN CONTROL
Figure 64. Mode Register 8, MR8
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADV7192KST 制造商:AD 制造商全稱:Analog Devices 功能描述:Video Encoder with Six 10-Bit DACs, 54 MHz Oversampling and Progressive Scan Inputs
ADV7194 制造商:AD 制造商全稱:Analog Devices 功能描述:Professional Extended-10⑩ Video Encoder with 54 MHz Oversampling
ADV7194KST 制造商:Analog Devices 功能描述:Video Encoder 6DAC 10-Bit 80-Pin LQFP 制造商:Rochester Electronics LLC 功能描述:PROFESSIONAL/HDTV NTSC/PAL ENCODER I.C. - Bulk 制造商:Analog Devices 功能描述:IC VIDEO ENCODER
ADV7194KSTZ 功能描述:IC ENCODER VIDEO EXT-10 80-LQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 編碼器，解碼器，轉(zhuǎn)換器 系列:- 產(chǎn)品變化通告:Development Systems Discontinuation 26/Apr/2011 標(biāo)準(zhǔn)包裝:1 系列:- 類型:編碼器 應(yīng)用:DVB-S.2 系統(tǒng) 電壓 - 電源，模擬:- 電壓 - 電源，數(shù)字:- 安裝類型:- 封裝/外殼:模塊 供應(yīng)商設(shè)備封裝:模塊 包裝:散裝 其它名稱:Q4645799
ADV7194KSTZ 制造商:Analog Devices 功能描述:TV / Video IC
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