VBA10201-R.3577.A
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E11
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3. Image compression record unit
The D100 compression record unit is composed of the compression record PCB, compact flash
PCB and interface PCB.
①
: Compression record PCB (AK PCB)
This PCB has the following main functions.
• Processing of image data: Processes an image from CCD, performs compression and stores im-
age.
• Restoration of image data: Restores the stored image on TFT.
• Transmission of image data: Transmits the stored image and processed image to PC.
①
-1: MICRO COMPUTER (U100)
MICRO COMPUTER (U100) is LSI exclusively for digital camera. It is equipped with the
CCD signal processing function, JPEG compression function, SDRAM controller, video inter-
face, CF card interface, USB interface, etc.
Internal RISC: 64MHz, Image processing unit: 64MHz, SDRAM: 64MHz
Oscillator for RISC: 16MHz, for USB in RISC: 48MHz
Radiator for PAL in RISC: 17.734MHz, for NTSC in RISC: 14.318MHz
This IC is equivalent to " ASIC" of the D1 series.
①
-2: 16M (×16 bit) FLASH memory (U302)
Memory for storing the firm software
①
-3: 256M (×16 bit) SDRAM (U300, U301)
Working memory for firm software/image processing memory
Operates with max. 64MHz.
This IC is equivalent to "64 (256SDRAN × 2 ~ 4) of D1X and H.
②
: Compact flash PCB (CF PCB)
This PCB has the following main functions.
• Connection of CF card: Connects the CF card via a connector and inputs/outputs data from/to AK
PCB.
②
-1: CF connector (CN700)
A connector of the JST type 2 specification is used.
②
-2: Connector for connecting with AK PCB (CN702)
This connector is equipped with 0.5mm pitch and 50 pins. It performs input/output for the CF
control signal wire and power.
③
: Interface PCB (IF PCB)
This PCB has the following main functions.
• Video output: Performs output of video signal inputted from AK PCB to a monitor such as TV via
an amplifier.
• DCIN: Inputs power from the AC adapter.
③
-1: Video connector (CN601)
This is a φ3.5mm connector. This connector is interchangeable with the one of the D1 series.
③
-2: Video amplifier circuit (periphery of U600)
③
-3: Connector for connecting with AK PCB (CN600)
Содержание D100 VBA10201
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