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PDF BU1571KN Data sheet ( Hoja de datos )

Número de pieza BU1571KN
Descripción Image Correction IC
Fabricantes ROHM Semiconductor 
Logotipo ROHM Semiconductor Logotipo



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Image Correction ICs
Image Correction IC
for Camera
BU1571KN
No.10060ECT01
Description
BU1571KN is AIE : Adaptive Image Enhancer (image processing technology by ROHM’s hardware).
Provides unprecedented visibility under severe conditions, such as darkness or extreme backlighting.
Features
1) UXGA size (16001200) for input of image data up to 7.5 fps, SXGA size (12801024) for input of image data up to
15 fps and VGA size (640480) for input of image data up to 30 fps.
2) Input data format for YUV=4:2:2 8bit. Order of components may be adjusted by the register.
3) Operation modes are image enhance mode, through mode, and sleep mode.
4) Strength of image correction can be set to linear.
5) Register can be set up with a 2-line serial interface.
*Extra document is prepared separately about each register setup. Please refer to the Development Scheme on page 6.
Application
Security camera, Intercom with camera, Drive recorder, and Web camera etc.
Lineup matrix
Parameter
BU1571KN
Supply power source
voltage
Camera
Interface
1.45-1.55(VDDCore)
2.7-3.6(VDDIo)
Supported up to
Max 2M pixels.
(1600×1200)
Control
Interface
I2C BUS
Output
Interface
8bit
YUV=4:2:2
Camera interface
Interrupt
output
-
Package
VQFN36
Absolute maximum ratings (Ta=25)
Parameter
Symbol
Ratings
Supply power source voltage 1
VDDIO
Supply power source voltage 2
VDD
Input voltage
VIN
Storage temperature range
Tstg
Power dissipation
PD
*In the case exceeding 25, 4.5mW should be reduced at the rating 1.
-0.3 ~ +4.2
-0.3 ~ +2.1
-0.3 ~ VDDIO+0.3
-40 ~ +125
450
Recommended operating range
Parameter
Symbol
Ratings
Supply power source voltage 1(IO)
VDDIO
Supply power source voltage 2(CORE)
VDD
Input voltage range
VIN-VDDIO
Operating temperature range
*Please supply power source in order of VDDVDDIO.
Topr
2.70 ~ 3.60(Typ:3.3V)
1.45 ~ 1.55(Typ:1.50V)
0 ~ VDDIO
-40 ~ +85
Unit
V
V
V
mW
Unit
V
V
V
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
1/8
2010.06 - Rev.C

1 page




BU1571KN pdf
BU1571KN
Timing Chart
1. Two-line serial interface
1.1 Two-line serial interface timing
SDA
Technical Note
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SDC
tLOW
tSU;DAT
tHD;ST
tBUF
tHD;STA
tHD;DAT
tHIGH
tSU;STA
tSU;STO
Symbol
fSCL
tHD;STA
fLOW
tHIGH
tSU;STA
tHD;DAT
tSU;DAT
tSU;STO
tBUF
Parameter
Table 1 I2C Interface timing
MIN.
SDC Clock Frequency
Hold-time(repetition)STARTconditions
(The first clock pulse is generated after this period.)
The "L" period of SDC clock
The "H" period of SDC clock
Setup time of repetitive STARTconditions
Hold time of SDA
Setup time of SDA
Setup time of the STOPconditions
BUS free time between STOPconditions and the STARTconditions
0
0.6
1.3
0.6
0.6
0
100
0.6
1.3
TYP.
-
-
-
-
-
-
-
-
-
MAX. Unit
400 kHz
- µs
- µs
- µs
- µs
µs
- ns
- µs
- µs
2. Camera module interface
2.1. Camera module interface timing
The input timing of camera image signal on camera I/F is shown in Table 2.
CAMVSI
CAMHSI
CAMDI0
CAMDI7
CAMCKI
(CKPOL=“1”)
CAMCKI
(CKPOL=“0”)
tCMS
tCMH
Table 2. BU1571KN timing (Camera data input)
Symbol
Explanation
tCMS
CAMCKI Rise / Fall
Camera set-up Time
tCMH
CAMCKI Rise / Fall
Camera Hold Time
MIN. TYP. MAX. UNIT
4 - - ns
4 - - ns
The input timing of camera image signal on camera I/F is shown in Table 2.1-2.
CAMCKO
CAMVSO
CAMHSO
CAMDO[7:0]
tPCLK
tPHH
tPDV
Table 2. Camera data output timing
Symbol
Explanation
MIN. TYP. MAX. UNIT
tPCLK Clock Cycle
tPHL
dPCLK Clock Duty
19.2 - - ns
45 50 55 %
tPDV
Decision of CAMDO from
CAMCKO
-
-
5 ns
tPHL,
tPHH
Decision of CAMVSO or
CAMHSO from CAMCKO
-
-
5 ns
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
5/8
2010.06 - Rev.C

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