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Details, datasheet, quote on part number:LM9627CCEA-2
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Datasheet text preview:
March 2001
LM9627 Color CMOS Image Sensor VGA 30 FPS
LM9627 Color CMOS Image Sensor VGA 30 FPS
General Description
The LM9627 is a high performance, low power, third inch VGA CMOS Active Pixel Sensor capable of capturing color digital still or motion images and converting them to a digital data stream. In addition to the active pixel array, an on-chip 12 bit A/D convertor, fixed pattern noise elimination circuits and a video gain amplifier is provided. Furthermore, an integrated programmable smart timing and control circuit allows the user maximum flexibility in adjusting integration time, active window size, gain and frame rate. Various control, timing and power modes are also provided.
Applications
· · · · · · PC Camera Digital Still Camera Video Conferencing Security Cameras Toys Machine Vision
Key Specifications
· Array Format · Effective Image Area Total: 664H x 504V Active: 648H x 488V Total: 4.98mm x 3.78 mm Active: 4.86 mm x 3.66 mm 1/3" 7.5µm x 7.5µm 8,10 & 12 Bit Digital 57dB 0.35% red green blue · Quantum Efficiency · Fill Factor · Color Mosaic · Package · Single Supply · Power Consumption · Operating Temp 14.5 kLSBs/lux.s 7.5 kLSBs/lux.s 5.1 kLSBs/lux.s 27% 47% (no micro lens) Bayer pattern 48 LCC 3.3 V 90 mW 0 to 50o C
Features
· · · · · · · · · · Supplied with micro lenses Video or snapshot operations Programmable pixel clock, inter-frame and inter-line delays. Programmable partial or full frame integration Programmable gain adjustment Horizontal & vertical sub-sampling (2:1 & 4:2) Windowing External snapshot trigger & event synchronisation signals Auto black level compensation Flexible digital video read-out supporting programmable: - polarity for synchronisation and pixel clock signals - leading edge adjustment for horizontal synchronization
· Optical Format · Pixel Size · Video Outputs · Dynamic Range · FPN · Sensitivity
· Programmable via 2 wire I2C compatible serial interface · Power on reset & power down mode
System Block Diagram
Storage lens LM9627 12bit digital image
Digital Image Processor
I2 C compatible event trigger snapshot
©2000 National Semiconductor Corporation
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L M 962 7
Overall Chip Block Diagram
Bad Pixel Detect & Correct Horizontal Shift Register Column CDS Black Level Compensation Digital Video Framer d[11:0] pclk hsync vsync
Row Address Decoder APS Array POR Reset Gen Row Address Gen Vertical Timing
AMP
12 Bit A/D
Horizontal Timing
Gain Control Register Bank I2C Compatible Serial I/F
sda sclk sadr
Clock Gen
Controller (sequencer)
Master Timer
Power Control
mclk
extsync
snapshot i r q pdwn Figure 1. Chip Block Diagram
Connection Diagram
vdd_od1 vss_od1 vdd_od3 vss_od3 ex tsy nc vdd_pix vsrvdd sadr
sda
6 sclk snapshot resetb pdwn vss_dig vdd_dig hsync vsync pclk mclk d0 NC 7 8 9 10 11 12 13 14 15 16 17 18
5
4
3
2
1
48 47 46 45 44 43 42 41 40 39 NC fine_i gnd fine_ctrl offset vdd_ana1 vss_ana1 vref_adc vss_ana2 vdd_ana2 vss_od2 vdd_od2
LM9627 48 PIN LCC
31 19 2 0 21 22 23 24 25 26 27 28 29 30 d1 d9 d2 d3 d4 d5 d6 d7 d8 d10 d11
Ordering Information
Temperature (0°C TA +50°C) LM9627 CCEA NS Package LCC
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NC
2
NC 38 37 36 35 34 33 32
irq
vrl
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Typical Application Circuit
System Control Camera Control Serial Control Bus
L M 96 27
16 mclk
9
10 pdwn
4 irq
8 sna psh ot
48 extsync
7 sclk
6 sda
5 sadr
3.3V analog
resetb
37 vdd_ana1 36 vss_ana1 47 vdd_od1 46 vss_od1 44 vdd_od3 45 vss_od3 3 vdd_pix 2 vrl
vdd_ana2 33 vss_ana2 34 vdd_od2 31 vss_od2 32
3.3V analog
0.1 F µ
0.1µ F
3.3V digital
3.3V digital
0.1 F µ
0.1µF
3.3V digital
vdd_dig
12
3.3Vdigital
0.1 F µ
vss_dig 11 LM9627 vsrvdd 1
0.1 F µ
3.3V analog
0.1 F µ
1.0 F µ
3.3V analog
vdd_ana
vdd_ana
1.5k
35
0.1µF
vref_adc
fine_i 41 fine_ctrl 39
1N4148
22k 1%
820
2N3904
10k 1%
18 19 42 43
NC NC NC NC hsync vsync pclk d1 0 d11 d9 d8 d7 d6 d5 d4 d3 d2 d1 d0
offset 3 8
4.7µ F
1.2k 1%
gnd 40
470 1%
13 14 15
30 29 28 27 26 25 24 23 22 21 20 17
Digital Video Bus Figure 2. Typical Application Diagram
Scan Read Out Direction
pin 1 (0,0) v e rtica l scan (0,0) digital out
(0,0)
horizontal scan lens CMOS Image Sensor
Figure 3. Scan directions and position of origin in imaging system
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