FT810Q datasheet(21/60 Pages) FTDI

Part #	FT810Q

Description	Embedded Video Engine

PDF	60 Pages

Scroll/Zoom	100%

Manufacturer	FTDI [Future Technology Devices International Ltd.]

Direct Link	http://www.ftdichip.com

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21 / 60 page

Document No.: FT_001165

FT81X

Embedded Video Engine

Datasheet Version 1.2

Clearance No.:

FTDI#440

Figure 4-4 Internal relaxation oscillator connection

Figure 4-5 Crystal oscillator connection

Figure 4-6 External clock input

4.2.2 Phase Locked Loop

The internal PLL takes an input clock from the oscillator, and generates clocks to all internal circuits,

including the graphics engine, audio engine and touch engine.

4.2.3 Clock Enable

At power-on the FT81x enters sleep mode. The internal relaxation oscillator is selected for the PLL clock

source. The system clock will be enabled when the following step is executed:



Host sends an “ACTIVE” command

If the application chooses to use the external clock source (12MHz crystal or clock), the following steps

shall be executed:



Host sends a “CLKEXT” command



Host sends an “ACTIVE” command

FT810Q Datasheet(PDF) 21 Page - Future Technology Devices International Ltd.