HDMI轉(zhuǎn)SDI 高清轉(zhuǎn)換器
一、hdmi轉(zhuǎn)sdi功能介紹
   此款高清轉(zhuǎn)換器支持將高清HDMI 信號(hào)轉(zhuǎn)為廣播級(jí)SDI信號(hào)輸出，可以將標(biāo)準(zhǔn)的帶音頻的高清或者標(biāo)清HDMI數(shù)字信號(hào)轉(zhuǎn)為廣播級(jí)質(zhì)量的高清或標(biāo)清信號(hào)SDI和獨(dú)立的模擬音頻通道進(jìn)行輸出。

SDI

SDI接口是數(shù)字串行接口(serial digital interface)的首字母縮寫。 串行接口是把數(shù)據(jù)字的各個(gè)比特以及相應(yīng)的數(shù)據(jù)通過(guò)單一通道順序傳送的接口。由于串行數(shù)字信號(hào)的數(shù)據(jù)率很高，在傳送前必須經(jīng)過(guò)處理。

HDMI

HDMI，高清晰度多媒體接口(英文：High Definition Multimedia Interface)是一種全數(shù)位化影像和聲音傳送接口，可以傳送無(wú)壓縮的音頻信號(hào)及視頻信號(hào)。HDMI可用于機(jī)頂盒、DVD播放機(jī)、個(gè)人電腦、電視游樂器、綜合擴(kuò)大機(jī)、數(shù)位音響與電視機(jī)。HDMI可以同時(shí)傳送音頻和影音信號(hào)，由于音頻和視頻信號(hào)采用同一條電纜，大大簡(jiǎn)化了系統(tǒng)的安裝。

二、應(yīng)用領(lǐng)域

廣泛用于使用SDI信號(hào)的各級(jí)電視臺(tái)的播出機(jī)房和非編制作領(lǐng)域，也廣泛用于各種使用HDMI接口的光端傳輸領(lǐng)域。

三、規(guī)格參數(shù)

1.SDI格式輸出:SD-SDI;HD-SDI;3G-SDI;

270M b/s, 625/25 PAL, 525/30 NTSC

1.485G b/s, 720P 23.98/24/25/29.97/30/50/59.94/60Hz

1.485G b/s, 1080i50Hz, 1080i59.94, 1080i60Hz

3G b/s, 1080p 23.98/24/25/29.97/30/50/60

2.SDI 格式兼容:SD, HD, 3G 輸出格式支持;兼容SMPTE-259/274/296/372/424/425/292

3.HDMI輸入:HDMI 1.2/1.3

HDMI 帶寬24bit, 30bit.480i, 576i, 720P, 1080i, 1080P

4.SDI輸出:  2路SDI旁通輸出

5.音頻輸出:

 SDI 內(nèi)嵌8通道伴音24 bit 位寬 2通道模擬音頻差分輸出（可選）

6.信號(hào)指標(biāo):阻抗75歐姆直流電平偏移為 0V±500mv  信號(hào)電平為800mv±10%

四、功能特點(diǎn)
   性能非常先進(jìn)，輸入端支持目前應(yīng)用最廣泛的HDMI1.3版本，并同時(shí)向下兼容HDMI1.2及HDMI1.1及以下版本，輸出端支持目前業(yè)內(nèi)最高端的3G SDI信號(hào)及1.485G SDI高清信號(hào)，并同時(shí)兼容各類SD-SDI信號(hào)。

畫質(zhì)輸出效果一流，完全滿足廣電播出機(jī)房及非編系統(tǒng)的專業(yè)要求。

針對(duì)廣電播出機(jī)房24小時(shí)不間斷運(yùn)營(yíng)環(huán)境，方案從設(shè)計(jì)到元器件選型及生產(chǎn)工藝等環(huán)節(jié)都特別強(qiáng)調(diào)穩(wěn)定性，能滿足7天*24小時(shí)運(yùn)行的要求。

OperationManual

Ⅰ:Introduction

The HDMI to 3G SDI converter allows HDMI signals to be shown on SDI displays while ensuring high bit rates of 2.970 Gbit/s to give you high resolution signal without any loss. For professionals this means that it is now easier to convert your high def HDMI signal with audio to 3G SDI for long distance transmission and display your work on two 3G SDI display.

Ⅱ:Applications

HDMI signal display on SDI display(s)

Extending HDMI signal over 100M away to two SDI display

Cascade HDMI signal over SDI cable

Ⅲ:Features

Supports HDMI timing: 480i, 576i, 720p50/60, 1080p 24/25/30, 1080i 50/60, 1080p 50/60

Operation at 2.970Gbps, 2.970/1.001Gbps, 1.485Gbps, 1.485/1.001Gbps and 270Mbps

Simultaneous display HDMI source on two SDI displays

Integrated audio embedded up to 8CH PCM 48kHz for HDMI

Auto video mode detection (3G/SD/HD)

Connect with other units (SDI to HDMI) to extend your signal over long distances

Supports signal transmission distances up to 300M for SD signals, 200 for HD signals and 100M for 3G signals

Note: Cable tested with Belden 1694A. Operating distances may vary if used with another type of cable.

Ⅳ:Package

HDMI to 3G SDI Box-----------------------------1PCS

5V DC Power Supply Adaptor-----------------1PCS

Operation Manual---------------------------------1PCS

V:Specification

(1) DC 5V: Plug the 5V DC power supply into the unit and connect the adaptor to an AC outlet. The red LED will turn on when the power is on.

(2) Power LED: This red LED will switch on when the device is connected with the power supply.

(3) HDMI In: This slot is to connect with the input source equipment such as DVD or Blue-ray player with connection cable for input video and audio signal transmission. Or it can also be connect with DVI source equipment for video signal transmission.

(4) 3G SDI Out 1: Connect output SDI display or with SDI to HDMI converter to cascade the signal as long as desired.

(5) 3G SDI Out 2: Connect output SDI display or with SDI to HDMI converter to cascade the signal as lon