DMX512A-PF串聯(lián)DMX解碼驅(qū)動(dòng)芯片

產(chǎn)品簡(jiǎn)介（DMX512A-PF）

     DMX512PF是單線傳輸三通LED驅(qū)動(dòng)控制專(zhuān)用芯片,采用DMX512(1990)通信協(xié)議。芯片內(nèi)含電源穩(wěn)壓電路,信號(hào)解碼模塊，數(shù)據(jù)緩存器,內(nèi)置恒流電路,用戶(hù)通過(guò)調(diào)節(jié)REXT管腳外接電阻調(diào)整恒流輸出的PFM電流,也可通過(guò)外接電阻調(diào)節(jié)其他的電流值,輸出驅(qū)動(dòng)采用專(zhuān)利SPFM 技術(shù),以及內(nèi)置振蕩器,支持輸出端極性反轉(zhuǎn)。

Description（DMX512A-PF）:

DMX512PF is one chip with PFM, signal analysis and driving function, the data format follows the DMX512(1990) agreement. This chip is specially designed for LED lighting and decoration use. This chip is built in with clock circuit, decodemodule, buffer storage,3 channels constant flow driver (the electric current can be controlled by the resistance set outside) together with the Oscillator who make the PFM works.

產(chǎn)品特點(diǎn)（DMX512A-PF）：

◆ RGB輸出端口耐壓：25V

◆ 內(nèi)置電源穩(wěn)壓電路，外部電源范圍：5V～24V

◆ DAI端口耐壓：12V

◆ 信號(hào)傳輸速率：250-500kbps

◆ 最大恒流輸出：60ma

◆ 專(zhuān)利PFM輸出,灰度等級(jí)：256級(jí)

◆ 單信號(hào)線級(jí)聯(lián)傳輸

◆ 具備信號(hào)修復(fù)功能，最大支持170/512個(gè)像素點(diǎn)的串接

◆ 兼容并擴(kuò)展DMX512(1990)協(xié)議信號(hào)

◆ 封裝形式：SOP8

◆ PDmax：0.25W

◆ HBM ESD>4KV

Specialty（DMX512A-PF）:

◆ The max RGB output support voltage：25V

◆ With built-in LDO, Supply voltage：5V～24V

◆ DAI supply voltage：5V

◆ One signal cable,signal transmission speed：250kbps

◆ The max constant current support：60mA(19ma tacitly approve)

◆ Regulable linearity PFM electric current output：256 scale

◆ Signal cable Wiring：Single signal cable in series connection(TTL)

◆ Max loading capacity: Max 170/512 chips in series connection.

◆ Data Format: DMX512(1990) agreement

◆ Package：SOP8

◆ PDmax：0.25W

◆ HBM ESD>4KV

產(chǎn)品用途（DMX512A-PF）：

LED裝飾與照明/戶(hù)內(nèi)/戶(hù)外LED顯視屏

Application（DMX512A-PF）:

LED decoration and illumination

Indoor/outdoor LED display

產(chǎn)品速度對(duì)比（2013年8月）：

DMX512AP-N：250K-750K

DMX512AP：250K-450K

DMX512A-W：250K

DMX512A-PF：250-500K

DMX512A-PF應(yīng)用原理圖：