GL646USB Просмотр технического описания (PDF) - Unspecified

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GL646USB

Three-in-one Scanner Controller for USB and 1394

Unspecified 

3. SYSTEM BLOCK DIAGRAM

3.1 USB 1.1 System Block Diagram

HOST

12MHz

Three-in-One

Scanner

Controller

(GL646USB)

CCD/CIS

Motor Driver

IO Device

DRAM

3.2 USB 2.0 System Block Diagram

12MHz

USB 2.0

Controller

24~48MHz

Three-in-One

Scanner

Controller

(GL646USB)

DRAM

3.3 IEEE 1394 System Block Diagram

CCD/CIS

Motor Driver

IO Device

GL646USB

HOST

25MHz

PHY

IEEE 1394

Controller

12MHz

Three-in-One

Scanner

Controller

(GL646USB)

CCD/CIS

Motor Driver

IO Device

DRAM

Note: 1.The pins assignment and package of GL646 USB is the same as GL643USB.

2.The connection of GL646USB is the same as GL643USB.

3.GL643USB is 14 bits solution; GL646USB is 16 bits solution.

Revision 1.3

-4-

Mar.22 2001

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