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VV5402 Schematic ( PDF Datasheet ) - VLSI Vision

Teilenummer VV5402
Beschreibung Multi-standard Monochrome CMOS Image Sensor
Hersteller VLSI Vision
Logo VLSI Vision Logo 




Gesamt 16 Seiten
VV5402 Datasheet, Funktion
VISION VV 5402 Monolithic Sensor
Multi-standard Monochrome CMOS Image Sensor.
PRODUCT DATASHEET
DISTINCTIVE CHARACTERISTICS
• Complete Video Camera on a single chip
• EIA/CCIR standard compatible
• Low power operation (250mW Typical)
• Integral 75driver
• Control options pin selectable for ease of use
• Low light operation to 0.5 lux
• Automatic Exposure and Gain Control
• Automatic Black Level Calibration
• Linear or Gamma corrected output option
• Industry standard 48 pin LCC package
GENERAL DESCRIPTION
The VV5402 is a highly-integrated VLSI
camera device based on VISION’s unique
CMOS sensor technology. It is suitable for
applications requiring a composite video
output with minimum external circuitry.
The device incorporates a 388 x 295 pixel
image sensor and all the necessary support
circuits to generate fully formatted composite
video into a 75load.
Automatic control of exposure, gain and black
level allow use of a single fixed-aperture lens
over a wide range of operating conditions.
Normal and Backlit modes further enhance
difficult scene types.
All major control functions are pin selectable
giving maximum flexibility with ease of use. The
VV5402 offers a complete camera system with
only a few external components.
BLOCK DIAGRAM
VERTICAL
SHIFT
REGISTER
5V
CKOUT
CKIN
SIN
CLOCK
CIRCUIT
PHOTO DIODE ARRAY
DIGITAL
CONTROL
LOGIC.
COLUMN SENSE AMPLIFIERS
SAMPLE & HOLD
ANALOG
VOLTAGE
REFS.
VIDEO
BUFFER
HORIZONTAL SHIFT REGISTER
VIDEO
AMP
AGC
AEC
RESETB
LIN
BKLIT
CCIR
VRT
Vbloom
VOFF
VBG
EBCK
EVWT
2V7
AVO
Pixel Format
384 x 287 (CCIR)
320 x 243 (EIA)
Pixel Size
12µm x 12µm
Array Size
4.66mm x 3.54mm
Min. illumination 0.5 lux (Standard Clock)
S/N Typically 52dB
Exposure control Automatic (to 146000:1)
Gain Control
Automatic (to +20dB)
Power Supply
5v ±5%
Power
Temperature
< 300 mW
0oC - 40oC
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VV5402 Datasheet, Funktion
VISION V V 5402 Sensor
DC Operating Conditions
Symbol
Parameter
Min.
VDD Operating supply voltage
4.75
VIH Input Voltage Logic “1”
2.4
VIL Input Voltage Logic “0”
-0.5
TA Ambient Operating Temperature 0
Typ.
5.0
Max. Units Notes
5.25
Volts
VDD+0.5
0.8
70
Volts
Volts
oC
Still air
AC Operating Conditions
Symbol
Parameter
CKIN
CKIN
EIA Crystal frequency
CCIR Crystal frequency
Min. Typ.
12.0000
14.7456
Max.
Units Notes
MHz 1
MHz 1
1. Pixel Clock = CKIN/2
Electrical Characteristics
Symbol
Parameter
Min. Typ. Max. Units
Notes
IDCC
Digital supply current
10
IADD
Analog supply current
25
IDD Overall supply current
35
VREF2V7 Internal voltage reference
2.700
VBG Internal bandgap reference
1.22
VOH Output Voltage Logic “1” 2.4
VOL Output Voltage Logic “0”
0.6
IILK Input Leakage current
-1
1
Typical conditions, VDD = 5.0 V, TA = 27oC
mA 1
mA 1
mA 1
Volts
Volts
Volts
Volts
µA
IOH = 2mA
IOL = -2mA
VIH on
input
µA VIL on
input
1. Digital and Analogue outputs unloaded - add output current.
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VV5402 pdf, datenblatt
VISION V V 5402 Sensor
VIDEO STANDARDS
The VV5402 has 2 different video format modes, producing CCIR or EIA standard composite
Monochrome video output. Line standards and frequencies are as follows:
Video Mode Format Image (Pixels) Crystal Frequency CCIR pin
CCIR
4:3 384 x 287
14.7456 MHz
1
EIA
4:3 320 x 243 12.0000 MHz
0
VV5402 Video Modes
Video signal Characteristics
The following table summarises the composite video output levels (AVO) for the two standards,
which are graphically illustrated on the following pages:
Symbol
Parameter
VSync
Vblank
CCIR, EIA Sync. level
CCIR, EIA Blanking
level
Vblack
CCIR Black level
EIA Black level
VSat CCIR Saturation level
EIA Saturation level
Min. Typ. Max. Units
Notes
0.3 V
0.9 V DC reference
level
0.9 V
1.0 V
2.3 V Peak White;
AVO clipped at
2.4 V this level
Note: All measurements are made with AVO driving one 75load.
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