PTN3393是一款DisplayPort至VGA適配器IC，能將DisplayPort源連接至VGA接收器。PTN3393集成了DisplayPort接收器和高速三路視頻數(shù)字-模擬轉(zhuǎn)換器，支持從VGA至WUXGA的顯示分辨率。PTN3393支持每個(gè)通道頻率為2.7 Gbits/s或1.62 Gbits/s的DisplayPort v1.1a單或雙通道工作。PTN3393支持“Flash over Aux（通過輔助通道編程）”的能力，能現(xiàn)場(chǎng)進(jìn)行固件升級(jí)。

PTN3393支持符合DisplayPort v1.1a規(guī)范的“輔助通道I2C”，可將VESA和DDC通道橋接至DisplayPort接口。

PTN3393專為單電源而設(shè)計(jì)，可最大限度降低應(yīng)用成本�？芍苯訌腄isplayPort源側(cè)的3.3 V電源對(duì)其進(jìn)行供電而無需額外的內(nèi)核電壓調(diào)節(jié)器。當(dāng)未傳送有效的DisplayPort源數(shù)據(jù)時(shí)，VGA輸出電源關(guān)閉。PTN3393還通過進(jìn)行負(fù)載感應(yīng)和向DisplayPort源報(bào)告接收器連接狀態(tài)來協(xié)助監(jiān)控檢測(cè)。

VESA-compliant DisplayPort v1.1a converter

• Main Link: 1-lane and 2-lane modes supported:
  • HBR (High Bit Rate) at 2.7 Gbit/s per lane
  • RBR (Reduced Bit Rate) at 1.62 Gbit/s per lane
  • BER (Bit Error Rate) better than 10-9
  • Down-spreading SSC (Spread Spectrum Clocking) supported
• 1 MHz AUX channel:
  • Supports native AUX CH syntax
  • Supports I2C-bus over AUX CH syntax
• Hot Plug Detect (HPD) signal to the source
• Cost-effective design optimized for VGA application

DDC channel output

• Supports 100 kbit/s I2C-bus speed, declared in DPCD register:
  • Support of I2C-bus speed control by DisplayPort source via DPCD registers,facilitating use of longer VGA cables
• I2C Over Aux feature facilitates full support of MCCS, DDC-CI, and DDC protocols

Analog video output

• VSIS 1.2 compliance for all supported video output modes
• Analog RGB current-source outputs
• VSYNC and HSYNC outputs
• Pixel clock up to 240 MHz
• Triple 8-bit Digital-to-Analog Converter (DAC)
• Direct drive of double terminated 75 Ω load with standard 700 mV (peak-to-peak)signals

General features

• Supports ‘Flash-over-AUX’ field upgradability
• Monitor presence detection. Connection/disconnection reported via HPD IRQ andDPCD update
• All display resolutions from VGA to WUXGA are supported1, including e.g.:
  • WUXGA: 6 bits, 1920 X 1200, 60 Hz, 193 MHz pixel clock rate
  • WUXGA: 1920 X 1200, 60 Hz, reduced blanking, 154 MHz pixel clock rate
  • UXGA: 1600 X 1200, 60 Hz, 162 MHz pixel clock rate
  • SXGA: 1280 X 1024, 60 Hz, 108 MHz pixel clock rate
  • XGA: 1024 X 768, 60 Hz, 65 MHz pixel clock rate
  • SVGA: 800 X 600, 60 Hz, 40 MHz pixel clock rate
  • VGA: 640 X 480, 60 Hz, 25 MHz pixel clock rate
  • Any resolution and refresh rates are supported up to 8 bit color
• Bits per color (bpc) supported:
  • 6, 8 bits supported
  • 10, 12, 16 bits supported by truncation to 8 MSBs
• All VGA colorimetry formats (RGB) supported
• Power modes:
  • Active-mode power consumption:
    • ~600 mW at UXGA / 162 MHz pixel clock
    • ~500 mW at SXGA / 108 MHz pixel clock
  • ~40 mW at Low-power mode or before link training started
• On-board crystal oscillator for use with external 27 MHz crystal
• ESD protection: 7 kV ESD HBM JEDEC
• 3.3 V ±10 % power supply
• Commercial temperature range: 0 °C to 85 °C
• 40-pin HVQFN, 6 mm X 6 mm X 0.85 mm (nominal); 0.5 mm pitch; lead-free package

• Dongle PC accessory:
  • Dongle connected to PC DisplayPort output and connected to RGB monitor viaVGA cable
  • PTN3393 is powered by the DP_PWR pin on the DisplayPort connector
• Desktop and notebook computers
• Notebook docking stations