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iMac Intel 配有 21.5" Retina 4K 显示器（2017版）拆解

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Traduction de l’étape 17

Étape 17
iMac Intel 21.5" Retina 4K Display 2017 Teardown: étape 0, image 1 de 3 iMac Intel 21.5" Retina 4K Display 2017 Teardown: étape 0, image 2 de 3 iMac Intel 21.5" Retina 4K Display 2017 Teardown: étape 0, image 3 de 3

  • Take a peek at what powers those popping pixels:

  • Texas Instruments SN74LVC8T245 8-bit dual-supply bus transceiver

  • Texas Instruments BUF16821 programmable gamma-voltage generator and Vcom calibrator

  • Parade Technologies DP665 LCD timing controller (the same found in the last generation iMac 4K)

  • We assume this is an Apple modified version of the DP663

  • Texas Instruments TPS54218 4.5 V to 17 V input, 2 A synchronous step-down SWIFT converter

  • Texas Instruments TPS54320 4.5 V to 17 V input, 3 A synchronous Step-Down SWIFT converter

  • Texas Instruments TPS65168 high resolution, fully programmable LCD bias

看看驱动这些像素的源泉：

德州仪器（Texas Instruments）SN74LVC8T245 8位双电源总线收发器

德州仪器（Texas Instruments）BUF16821可编程伽玛电压发生器和Vcom校准器

谱瑞科技（Parade Technologies） DP665 LCD时序控制模块（跟上一代iMac 4K中一样）

我们假定这是DP663针对 Apple的修改版

德州仪器（Texas Instruments）TPS54218 4.5 V至17 V输入，3 A同步降压SWIFT转换器

德州仪器（Texas Instruments）TPS54320 4.5 V至17 V输入，3 A同步降压SWIFT转换器

德州仪器（Texas Instruments）TPS65168高分辨率，全可编程LCD偏置

[* black] Take a peek at what powers those popping pixels:
[* red] Texas Instruments [http://www.ti.com/lit/ds/symlink/sn74lvc8t245.pdf|SN74LVC8T245|new_window=true] 8-bit dual-supply bus transceiver
- [* orange] Texas Instruments [http://www.ti.com/product/buf16821|BUF16821|new_window=true] Programmable Gamma-Voltage Generator and Vcom Calibrator
- [* yellow] Parade Technologies DP665 LCD Timing Controller (the same found in the last generation iMac 4K)
+ [* orange] Texas Instruments [http://www.ti.com/product/buf16821|BUF16821|new_window=true] programmable gamma-voltage generator and Vcom calibrator
+ [* yellow] Parade Technologies DP665 LCD timing controller (the same found in the last generation iMac 4K)
[* icon_note] We assume this is an Apple modified version of the [http://www.paradetech.com/products/displayport-lcd-timing-controller-products/dp663/|DP663|new_window=true]
- [* green] Texas Instruments [http://www.ti.com/product/tps54218|TPS54218|new_window=true] 4.5 V to 17 V Input, 3 A synchronous step-down SWIFT converter
- [* light_blue] Texas Instruments [http://www.ti.com/product/tps54320|TPS54320|new_window=true] 4.5 V to 17 V Input, 3 A synchronous Step-Down SWIFT converter
- [* blue] Texas Instruments [http://www.ti.com/product/tps65168|TPS65168|new_window=true] High Resolution, Fully Programmable LCD Bias
+ [* green] Texas Instruments [http://www.ti.com/product/tps54218|TPS54218|new_window=true] 4.5 V to 17 V input, 2 A synchronous step-down SWIFT converter
+ [* light_blue] Texas Instruments [http://www.ti.com/product/tps54320|TPS54320|new_window=true] 4.5 V to 17 V input, 3 A synchronous Step-Down SWIFT converter
+ [* blue] Texas Instruments [http://www.ti.com/product/tps65168|TPS65168|new_window=true] high resolution, fully programmable LCD bias

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