LR38603A SHARP Digital Signal Processor for analog Securiti Color CCD Cameras
2023-07-27 23:01:21
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LR38603A, SHARP Digital Signal Processor, for analog Securiti Color CCD Cameras，Sharp analog security camera general DSP
DESCRIPTION
The LR38603 is a CMOS digital signal processor for color CCD video camera systems of 270 k/320 k/ 410 k/470 k-pixel CCDs with complementary color filters. The video camera system consists of CDS/PGA/ADC IC (IR3Y48A1), DSP IC (LR38603) and Video driver IC (LR36685) with CCD.
FEATURES
● Designed for 1/4-type 270 k/320 k/410 k/470 kpixel color CCDs with Mg, G, CY, and Ye complementary color filters
● Switchable between NTSC and PAL modes
● Built-in signal generation circuit for driving CCD and various pulses for TV signals
● Parameters for camera signal processing can be set
● Built-in auto exposure control
● Built-in auto white balance control
● Built-in auto carrier balance control
● Built-in drive circuit for 2 K-bit EEPROM
● Built-in 9-bit D/A converter
● Built-in mirror image output
● Built-in circuit to reduce line crawl noise
● Built-in auto white detect correction
● YUV digital output (8 bits x 2)
● UYVY digital output (8 bits x 1)
● Analog video output
● External clock input (8 fsc)
● Built-in vertical reset
● Built-in horizontal reset
● Single +3.3 V power supply
● Package : 80-pin LQFP (P-LQFP080-1212) 0.5 mm pin-pitch
AUTOMATIC CAMERA FUNCTION CONTROL
Automatic Electronic Exposure Control
Electronic shutter speed is controlled so that the exposure control data approach the data of REF_IRIS1 (address 06h).
Under BLC mode, the data of REF_IRIS2 (address 09h) are available instead of REF_IRIS1. If the exposure control data are less than the data of CTLD_AGC (address 07h), an electronic shutter speed is held. And then PGA gain is controlled so that the exposure control data will be less than the data of CTLD_0 (Address 08h).
If the exposure control data are greater than the data of CTLD_AGC (address 07h), exposure control starts again.
Electronic Shutter Speed Setting
Electronic shutter speeds below can be selected by either hardware or coefficient data.
All of the above pictures are taken after matting the online showing, what you see is what you get.
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RJ2311DAOPB，IR3Y48B1, or click here，or Visit The official website:
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