tw8820原理图

A

B

C

D

E

CVBS CVBS 4

Y Y

Y0 Y1 4

PANEL I/F

TCREV

LCD PANEL WVGA Panel

TCREV(GP32)

GPO 0

32Mbits

SPI Memory 3

SPICK,SPICS SPID0,D1 3

Variable Resistor

AUX0 GPIO11 FPPWC FET SW 3.3V/ 5V/ 12V GPIO12 FPBIAS FET SW 5V/ 12V Dim Control (FPPWM)

DCDC ISL97519

Key Input

AUX1

PWM1 2

LED Driver ISL78100 2

ICL3232CB

VCC12 RX

RS232C

RX TX

ISL85033 (3Ax2) TX SDA,SCL I2C

TW8820 address=8Ah/RESET Reset SW

VCC5+12V Daughter Card Interface VCC3

ISL8010 (1A) VDD18 AVDD18

1

1

EEPROM 24C16 address=A0h

1001 Murphy Ranch Road Milpitas, CA 95035 Title

TW8820 Main Board

This schematic is believed to be accurate but bears no warranty. Techwell, Inc. is not responsible for any mistakes in this diagram. B C D

Size B Date:

Document Number

Rev

BLOCK DIAGRAM Monday, November 21, 2011 Sheet E

1.1 1 of

8

A

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