Canon DC20 E - 1. PCB Functions

DC10 E, DC20 E
TECHNICAL DESCRIPTION
1
1. PCB Functions
(1) MAIN PCB
System-Control Section
• IC100 SUB MI-COM Low-voltage system control (POWER KEY detection, memory backup,
internal clock, charging)
• IC101 CCM MI-COM System control (Camera/Card/Mode)
• IC103 FLASH Flash-ROM for CCM MI-COM (8Mbit)
• IC104 3.2V REGULATOR Power source for the SUB MI-COM and rechargeable power source for
the lithium battery
• IC105 RESET IC SUB MI-COM resetting
• IC106 AND GATE Ready signal for serial communication between CCM MI-COM and LAP
and DIGIC DV.
• IC810 AUDIO PLL Master clock signal generation, audio signal output
Camera/Card Section
• IC1000 (DC20 E)
CDS/AD 2ch CCD output signal sampling, A/D converter
• IC1001 (DC10 E)
INVERTER Oscillation circuit inverter
• IC1001 (DC20 E)
TG CCD horizontal transfer pulse generation
• IC1002 (DC10 E)
TG/CDS/AGC/AD/V-DRIVER 2ch CCD output signal sampling, A/D converter,
CCD horizontal transfer pulse generation
• IC1002 (DC20 E)
MPX2 AGC, image composition, flaw correction
• IC1004 (DC10 E)
2.8V REGULATOR 2.8V regulator
• IC1101 SDRAM Memory for DIGIC DV (64Mbit)
• IC1102 SDRAM Memory for DIGIC DV (64Mbit)
• IC1103 DIGIC DV Camera digital signal processing, card image processing
• IC1200 LENS DRIVER Zoom, focus motor driver, IRIS driver, and gyro output amp
• IC1400 LAP Lens actuator processor
• IC1401 1.8V REGULATOR 1.8V regulator
Shock Proof section
• IC1650 SHOCK SENSOR Shock sensor
• IC1651 SENSOR IC Shock sensor IC
• IC2102 75OHM DRIVER 75Ω Video driver
BACK END section
• IC2300 BACK END DVD signal processing LSI, FRONT END control (ATAPI),
BACK END MI-COM, LCD/CVF control
• IC2301 SRAM DVD control, DVD management data, DVD backup (16Mbit)
• IC2302 BUFFER Buffer for SRAM-CS
• IC2303 FLASH Flash-ROM for BACK END MI-COM (64Mbit)
• IC2304 DDR SDRAM Memory for BACK END (CODEC) (128Mbit)
• IC2305 DDR SDRAM Memory for BACK END (CODEC) (128Mbit)
• IC2306 DDR SDRAM Memory for BACK END (ATAPI Communication) (512Mbit)
PM section
• IC3200 (DC20 E)
3.1V REGULATOR 3.1V regulator
• IC3201 DC/DC CONVERTER CONTROL Power PWM regulator controller
• IC3203 4.6V REGULATOR 4.6V regulator