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| 型號： | EVAL-ADV7842-7511P |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 13/28頁 |
| 文件大?。?/td> | 0K |
| 描述： | BOARD EVAL FOR ADV7842-7511P |
| 標準包裝： | 1 |
| 系列： | * |
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ADV7842
Rev. B | Page 20 of 28
FUNCTIONAL OVERVIEW
HDMI RECEIVER
The ADV7842 front end incorporates a 2:1 multiplexed HDMI
1.4 receiver with Xpressview fast switching technology and
support for HDMI 1.4 features such as 3D TV. Building on the
feature set of Analog Device existing HDMI devices, the ADV7842
also offers support for all HD TV formats up to 12-bit, 1080p
Deep Color and all display resolutions up to UXGA (1600 ×
1200 at 60 Hz). Xpressview fast switching technology, using
Analog Devices hardware-based HDCP engine that minimizes
software overhead, allows switching between the two input
ports in less than 1 second.
With the inclusion of HDCP 1.4, the ADV7842 can receive
encrypted video content. The HDMI interface of the ADV7842
allows for authentication of a video receiver, decryption of
encoded data at the receiver, and renewal of that authentication
during transmission, as specified by the HDCP 1.4 protocol.
Repeater support is also offered by the ADV7842.
The HDMI receiver incorporates active equalization of the
HDMI data signals. This equalization compensates for the high
frequency losses inherent in HDMI and DVI cabling, especially
at longer lengths and higher frequencies. It is capable of
equalizing for cable lengths up to 30 meters to achieve robust
receiver performance at even the highest HDMI data rates.
The HDMI receiver offers advanced audio functionality. It
supports multichannel I2S audio for up to eight channels. It also
supports a 6-DSD channel interface with each channel carrying
an over-sampled 1-bit representation of the audio signal as
delivered on SACD. The ADV7842 can also receive HBR audio
packet streams and outputs them through the HBR interface in
an SPDIF format conforming to the IEC60958 standard.
The receiver contains an audio mute controller that can detect a
variety of conditions that may result in audible extraneous noise
in the audio output. On detection of these conditions, the audio
signal can be ramped to mute to prevent audio clicks or pops.
HDMI receiver features include:
2:1 multiplexed HDMI receiver
HDMI 1.4, 3D format support, DVI 1.0
225 MHz HDMI receiver
Integrated equalizer
High-bandwidth Digital Content Protection (HDCP 1.4)
also on background ports
Internal HDCP keys
36-/30-bit Deep Color support
PCM, HBR, DSD audio packet support
Repeater support
Internal E-EDID RAM
Hot plug assert output pin for each HDMI port
CEC controller
ANALOG FRONT END
The ADV7842 analog front end comprises four 170 MHz, 12-bit
ADCs that digitize the analog video signal before applying it to
the standard definition processor (SDP) or component
processor (CP). The analog front end uses differential channels
to each ADC to ensure high performance in a mixed-signal
application. The front end also includes a 12-channel input mux
that enables multiple video signals to be applied to the
ADV7842 without the requirement of an external mux.
Current and voltage clamp control loops ensure that any DC
offsets are removed from the video signal. The clamps are
positioned in front of each ADC to ensure that the video signal
remains within the range of the converter.
The ADCs are configured to run up to 8× oversampling mode
when decoding composite or S-Video inputs. For component
525i, 625i, 525p, and 625p sources, 4× oversampling is performed.
All other video standards are 1× oversampled. Oversampling
the video signals reduces the cost and complexity of external
antialiasing filters with the benefit of an increased signal-to-
noise ratio (SNR).
Optional internal antialiasing filters with programmable
bandwidth are positioned in front of each ADC. These filters
can be used to band limit video signals, removing spurious, out-
of-band noise.
The ADV7842 can support the simultaneous processing of
CVBS and RGB standard definition signals to enable SCART
compatibility and overlay functionality. A combination of
CVBS and RGB inputs can be mixed with the output under the
control of I2C registers.
Analog front-end features include:
Four 170 MHz, NSV, 12-bit ADCs that enable true 12-bit
video decoding
12-channel analog input mux that enables multiple source
connections without the requirement of an external mux
Four current and voltage clamp control loops that ensure
any dc offsets are removed from the video signal
SCART functionality and SD RGB overlay on CVBS
controlled by fast blank input
SCART source switching detection through TRI1-TRI8 input
Four programmable antialiasing filters
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| EVAL-ADV7842EB1Z | 功能描述:BOARD EVAL FOR ADV7842EB1Z RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估演示板和套件 系列:* 標準包裝:1 系列:PCI Express® (PCIe) 主要目的:接口，收發(fā)器，PCI Express 嵌入式:- 已用 IC / 零件:DS80PCI800 主要屬性:- 次要屬性:- 已供物品:板 |
| EVAL-ADV7842EB2Z | 功能描述:BOARD EVAL FOR ADV7842EB2Z RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估演示板和套件 系列:* 標準包裝:1 系列:PCI Express® (PCIe) 主要目的:接口，收發(fā)器，PCI Express 嵌入式:- 已用 IC / 零件:DS80PCI800 主要屬性:- 次要屬性:- 已供物品:板 |
| EVAL-ADV7844EB1Z | 功能描述:BOARD EVAL FOR ADV7844EB1Z RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估演示板和套件 系列:* 標準包裝:1 系列:PCI Express® (PCIe) 主要目的:接口，收發(fā)器，PCI Express 嵌入式:- 已用 IC / 零件:DS80PCI800 主要屬性:- 次要屬性:- 已供物品:板 |
| EVAL-ADV7850EB1Z | 制造商:AD 制造商全稱:Analog Devices 功能描述:Complete AV Front End |
| EVAL-ADV7850EBZ | 制造商:AD 制造商全稱:Analog Devices 功能描述:Complete AV Front End |
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