LT8712EXl，Type-C/DP1.2到HDMI2.0/VGA轉(zhuǎn)換芯片

• 發(fā)布時間：2024/4/9 15:22:45
• 所屬類別：集成電路 » 集成電路
• 公    司：深圳市九黎科技有限公司
• 聯(lián) 系 人：鄭小姐/何小姐
• 

LT8712EXl，Type-C/DP1.2到HDMI2.0/VGA轉(zhuǎn)換芯片屬性

LT8712EXl，Type-C/DP1.2到HDMI2.0/VGA轉(zhuǎn)換芯片描述

特點
USB類型C
·符合USBType-C標準V1.0上的VESA DisplayPortAlt模式
符合USB電源傳輸規(guī)范R2.0、V1.0
兼容USB Type-C電纜和連接器規(guī)格R1.2
-內(nèi)置雙CC控制器，用于充電器和正常通信
·靈活的USBType-C切換，支持USB3.05Gbps和DisplayPort Alt模式，最高可達5.4Gbps
·符合USBType-C規(guī)范V1.0上的HDMI1.4b Alt模式
●DP1.2接收器
·符合VESA DP1.2標準
支持1.62/2.7/5.4Gbps
支持1/2/4車道
·支持SSC
1Mbps AUX通道
·符合HDCP1.3標準
SST/MST模式
·PCB、電纜和連接器損耗的自適應(yīng)接收器均衡
支持
車道
交換(任意)
和極性
反轉(zhuǎn)(獨立)
接收器PHY兼容HDMI信號
雙HDMI2.0發(fā)射器
符合HDMI2.0、HDMI1.4和DVI1.0
。雙HDMI端口
"集成一個HDCP2.2發(fā)動機和一個HDCP1.4發(fā)動機，每個發(fā)動機對應(yīng)一個HDMI發(fā)射器
數(shù)據(jù)速率高達6Gbps
支持超高清4K@60Hz(RGB和YCbCr 4:4:4)
支持TMDS加擾以降低EMURFI
支持SCDC(狀態(tài)和控制數(shù)據(jù)通道)
。支持CEC
·可交流耦合器
"支持通道交換(任意)和極性反轉(zhuǎn)(獨立)
可編程發(fā)射機擺幅和預加重
·下游接收機傳感
5V容差DDC/HPD VO
三通道視頻DAC
符合VESA VSIS1.2標準
200MSPS吞吐量和WUXGA定時支持
支持RGB與YCbCr 4:4:4、YCbCr 4:5、YCbCr 5:4和YCbCr4:2:2之間的CSC(顏色空間轉(zhuǎn)換)
振幅校準
YPbPr輸出功能
。R/B可切換
”支持獨立同步或嵌入式同步(SOG/SOY)
負載傳感
5V容差DDCVO
數(shù)字音頻輸出
12S和SPDIF接口
8通道LPCM或壓縮音頻
采樣率高達192kHz
雜項
"DP接收器到HDMI發(fā)射器旁路以支持HDMIAlt模式
內(nèi)部或外部振蕩
集成微處理器
。用于固件和HDCP密鑰的嵌入式SPI閃存
"用于VBUSNCONNAUX和其他系統(tǒng)控制的GPIO
集成100/400kHz12C從站
通過SPI、AUX或I2C接口更新Fimware
低功耗
電源:VO為3.3V，核心為1.2V
ESD 4kV HBM
溫度范圍:-40攝氏度至+85攝氏度封裝:128引腳QFN 14*14
描述
LT8712EXl是一款高性能Type-C/DP1.2到HDMI20/GA轉(zhuǎn)換器，設(shè)計用于將一個USBType-C源或一個DP1.2源同時連接到一個VGA接收器和最多兩個HDMI2.0接收器。
該LT8712EXI集成了一個DP1.2兼容接收器(MST能力)，一個高速三通道視頻DAC和兩個HDMI2.0兼容發(fā)射器。此外，還包括兩個CC控制器，用于CC通信，以實現(xiàn)DPAltMode和功率輸送功能，一個用于上游Type-C端口，另一個用于下游端口。片上USB3.0交換機是一款高速雙向無源開關(guān)，提供靈活的開關(guān)，以適應(yīng)連接器翻轉(zhuǎn)。該開關(guān)還處理2-ch數(shù)據(jù)/2-ch視頻和所有4-ch視頻之間的多路復用。
提供兩個數(shù)字音頻輸出接口，12S和SPDIF。都支持8通道LPCM或壓縮音頻在最大192kHz采樣率。
該器件能夠自動運行，這是由一個集成的微處理器，使用一個嵌入式SPL閃存固件存儲啟用。系統(tǒng)控制也可通過使用專用配置12C從站接口。
應(yīng)用程序
對接站
●視頻中心●加密狗
2. General Description
The LT8712EXI is a high performance Type-C/DP1.2 to
HDMI2.0/VGA converter, designed to connect a USB Type
C source or a DP1.2 source to a VGA sink and up to two
HDMI2.0 sinks simultaneously. The LT8712EXI integrates a
DP1.2 compliant receiver (MST capable), a high-speed
triple-channel video DAC and two HDMI2.0 compliant
transmitters. Also, two CC controllers are included for CC
communication to implement DP Alt Mode and power
delivery function, one for upstream Type-C port and another
for downstream port. On-chip USB3.0 switch is a high-speed
bi-directional passive switch which provides flexible
switching to accommodate connector flipping. This switch
also handles muxing between 2-ch data / 2-ch video and all
4-ch video.
The DP interface comprises 4 main lanes, AUX channel,
and HPD signal. The receiver supports maximum 5.4Gbps
(HBR2) data rate per lane and features multi-stream
transporting (MST) which enables the transmission of 2
independent AV streams from a single DP link. The DP
receiver incorporates HDCP 1.3 content protection scheme
with embedded key for secure transmission of digital audio
video content.
The VGA interface consists of analog R/G/B video, HSYNC,
VSYNC, and DDC signals. The 8-bit video DAC supports
200MSPS throughput which covers graphic resolutions from
VGA (640x480) to WUXGA (1920x1200). Analog video
signal amplitude ranges from 0 to 700mV and conforms to
the VSIS 1.2 standards. The R and B channel can be
swapped with each other to facilitate PCB trace routing. The
analog video interface can also be configured to output
YPbPr component video, with pins mapping to VGA G, B
and R channel respectively. The interface supports separate
SYNC and embedded SYNC (SOG/SOY). The video DAC
also aids in monitor detection by performing load sensing,
and calibrates its output amplitude automatically.
The HDMI interface includes 4 TMDS clock/data pairs, DDC,
and HPD signal. The HDMI transmitter is capable of
supporting up to 6Gpbs data rate, quite adequate for
handling video resolutions up to FHD 1080p 120Hz 3D and
UHD 4k 60Hz formats. The transmitter also performs
downstream RX sensing in both DC and AC coupling
applications. The LT8712EXI incorporates two HDMI
transmitters and two HDCP engines which support
HDCP1.4 and HDCP2.2 respectively, each for one HDMI
transmitter. With the inclusion of HDCP, the LT8712EXI
allows secure transmission of protected content. Embedded
key is available that provides the highest level of HDCP key
security.
The DP receiver PHY is HDMI signal compatible. It can
receive HDMI signal and then bypass to any HDMI
transmitter PHY or both simultaneously. This feature allows
the LT8712EXI to suitably support HDMI Alt Mode. The
integrated CC controller will handle DDC/CEC protocol
conversion and communication.
Besides analog and digital video output interfaces, the
LT8712EXI also provides digital audio output interfaces: I2S
and SPDIF. The audio stream is extracted and recovered
from DP data stream, and then routed to digital audio
outputs or HDMI outputs. The device supports 8-channel
LPCM or compressed audio at maximum 192kHz sample
rate.
The device is capable of automatic operation which is
enabled by an integrated microprocessor that uses an
embedded SPI flash for firmware storage. System control is
also available through the use of a dedicated configuration
I2C slave interface.
The LT8712EXI is a 128-pin QFN package with ePad and
specified over the -40℃ to +85℃ operating temperature
range.
3. Applications
 Docking station
 Dongle
 Video hub
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JIULI Technology can provide a full set of development materials: specifications, circuit diagrams, demos, online technical support communication with the original factory, and recommendations for solutions that better suit customers' needs. We welcome inquiries from customers and can provide samples with 13% tax included! As an agent, each chip comes with a factory certificate to eliminate any concerns about counterfeit goods and ensure that your materials are more reliable. Contact us at: Telephone: 86-0755-82714294/18171547226 (WeChat available) Fax: 86-0755-82737072 Contact: Xiang Hua QQ: 2981967693 Email: sherryyh@foxmail.com

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