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Teilenummer | AI3152 |
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Beschreibung | Digital Signal Processor | |
Hersteller | A1 PROs | |
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Gesamt 9 Seiten 1 A1 PROs
A1 PROs
Ver1.0
Ai3152
Digital Signal Processor for Color CCD Camera
General Description
The Ai3152 is the digital signal-processing chip for color video camera. It includes timing generator
and digital/analog output. Supports 250K / 380K NTSC system CCD sensors and 290K / 440K PAL
system CCD sensors with complementary color filter. It also provided line lock function.
Features
• Support Ye, Cyan, Magenta, Green complementary color filter CCD sensors for
NTSC : Ai325CA(250K), Ai338CA(380K)
PAL : Ai329CA(290K), Ai344CA(440K)
• Flexible Color Adjustment.
• Digital Noise Reduction.
• High performance AWB (5 set linear matrix).
• IRIS coexists with AES and AGC.
• Day or Night notice output.
• Timing adjustment by 1 ns delay
• White clip / Setup level / Sync level adjustment independent.
• Build-in blemish compensation circuit to store the data in EEPROM,
the blemish pixel can up to 176 pixels.
• Programmable pull-up / pull-down GPIO and DVIO pin.
• Horizontal resolution up to 500 TVL
• Video drive for IRIS lens is possible by simple drive circuit
even no CCD signal pin (CCDLEVEL or Mon_out) from AFE.
• Hi-speed AE.
• Support external EEPROM to store parameter.
• Build-in auto white balance control.
• Build-in auto exposure control.
• Build-in backlight compensation.
• Build-in 10bit digital to analog converter.
• Build-in mirror function.
• Support NTSC/PAL analog composite video output.
• Build-in timing generator for vertical driver and CDS/AGC/ADC peripheral chips.
• Single 3.3V power supply. (Horizontal drive pins can be 3.3V/5V)
• Support GPIO pin Define function.
• Programmable CCD Timing and Driving Current.
• Support Digital Line Lock function.
• LQFP-80 (10x10mm ; 0.4mm pin pitch)
1
Ai3152
DSP Register Table
EEP
Adr.
Start
Bit
Bit
Num
Data
L
(HEX)
Data
H
(HEX)
Bit
Symbol
0F 0 2
1:0 TV_MONO[1:0]
42 0 5
11
4:0 AP_FIRGA[4:0]
1 AP_CTRL_EN
Description
TV color/mono display mode selection.
00: color display mode with color burst.
01: mono display mode with color burst.
10: color display mode without color burst.
11: mono display mode without color burst.
Initial value of APT_FIRGA
(gain of FIR horizontal edge signal)
1: Enable Horizontal and Vertical aperture control.
21
2 APKNEE_EN
1: Enable Aperture KNEE.
49 3 1
3 AP_CORING_EN 1: Enable Aperture CORING.
51
5 YGAMMA_EN
1: Enable Y Gamma.
61
51
4D 6 1
71
4E 0 8
4F 0 8
50 0 8
51 0 8
52 0 8
53 0 8
54 0 8
55 0 8
56 0 8
6 Y_LCRAWL_EN 1: Enable Line Crawl.
5 DENOISE
DENOISE enable
0: Disable
1: Enable
6 NONLINEAR
NONLINEAR enable
0: Disable
1: Enable
RGB gamma enable
7 RGB_GAMMA_EN 0: Disable
1: Enable
7:0 APKNEE_Y128
7:0 APKNEE_Y256
7:0 APKNEE_Y384
7:0 APKNEE_Y512
7:0 APKNEE_Y640
7:0 APKNEE_Y768
7:0 APKNEE_Y896
7:0 APKNEE_Y1024
Y for APKNEE curve when X=128.
Y= APKNEE_Y128 *2, Note: Y0=0.
Y for APKNEE curve when X=256.
Y= APKNEE_Y256 *2
Y for APKNEE curve when X=384.
Y= APKNEE_Y384 *2
Y for APKNEE curve when X=512.
Y= APKNEE_Y512 *2
Y for APKNEE curve when X=640.
Y= APKNEE_Y640 *2
Y for APKNEE curve when X=768.
Y= APKNEE_Y768 *2
Y for APKNEE curve when X=896.
Y= APKNEE_Y896 *2
Y for APKNEE curve when X=1024.
Y= APKNEE_Y1024 *2
5:0 AP_CORN[5:0]
Aperture corn control -> Corn = AP_CORN * 2
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6 Page | ||
Seiten | Gesamt 9 Seiten | |
PDF Download | [ AI3152 Schematic.PDF ] |
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