ROHM BU1571KN

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 (16001200) for input of image data up to 7.5 fps, SXGA size (12801024) for input of image data up to
15 fps and VGA size (640480) 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
Supply power source
voltage
Camera
Interface
Control
Interface
Output
Interface
Interrupt
output
Package
BU1571KN
1.45-1.55(VDDCore)
2.7-3.6(VDDIo)
Supported up to
Max 2M pixels.
(1600×1200)
I2C BUS
8bit
YUV=4:2:2
Camera interface
-
VQFN36
●Absolute maximum ratings
(Ta=25℃)
Parameter
Symbol
Ratings
Unit
Supply power source voltage 1
VDDIO
-0.3 ~ +4.2
V
Supply power source voltage 2
VDD
-0.3 ~ +2.1
V
Input voltage
VIN
-0.3 ~ VDDIO+0.3
V
Storage temperature range
Tstg
-40 ~ +125
℃
Power dissipation
PD
450
mW
Symbol
Ratings
Unit
VDDIO
2.70 ~ 3.60(Typ:3.3V)
V
VDD
1.45 ~ 1.55(Typ:1.50V)
V
VIN-VDDIO
0 ~ VDDIO
V
Topr
-40 ~ +85
℃
*In the case exceeding 25℃, 4.5mW should be reduced at the rating 1℃.
●Recommended operating range
Parameter
Supply power source voltage 1(IO)
Supply power source voltage 2(CORE)
Input voltage range
Operating temperature range
*Please supply power source in order of VDD→VDDIO.
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© 2010 ROHM Co., Ltd. All rights reserved.
1/8
2010.06 - Rev.C
Technical Note
BU1571KN
●Electric characteristics
(Unless otherwise specified, VDD=1.50V,VDDIO=3.3V,GND=0.0V,Ta=25℃,fIN=52.0MHz)
Limits
Parameter
Symbol
Unit
MIN.
TYP.
MAX.
Input frequency
Condition
fIN
10.0
-
52.0
Operating consumption current
IDD1
-
15
-
mA
At enhance mode setting
Static consumption current
IDDst
-
-
30
µA
At sleep mode setting,
input terminal=GND setting
Input ”H” current 1
IIH1
-10
-
10
µA
VIH=VDDIO
Input ”H” current 2
IIH2
35
70
140
µA
Pull-Down terminal, VIH=VDDIO
Input ”L” current 1
IIL1
-10
-
10
µA
VIL=GND
Input ”L” current 2
IIL2
-10
-
10
µA
Pull-Down terminal, VIL=GND
Input ”H” voltage 1
VIH1
VDDIO
0.8
-
Input ”L” voltage 1
VIL1
-0.3
-
Input ”H” voltage 2
VIH2
VDDIO
0.85
-
Input ”L” voltage 2
VIL2
-0.3
-
Hysteresis voltage width
Vhys
-
0.5
-
V
Output ”H” voltage
VOH
VDDIO
-0.4
-
VDDIO
V
Output ”L” voltage
VOL
0.0
-
0.4
V
VDDIO
+0.3
VDDIO
0.2
VDDIO
+0.3
VDDIO
0.15
●Block Diagram
MHz CAMCKI(DUTY45% ~ 55%)
V
V
V
V
Normal input
(including input mode of I/O terminal)
Normal input
(including input mode of I/O terminal)
Hysteresis input
(RESETB, CAMCKI, SDA, SDC)
Hysteresis input
(RESETB, CAMCKI, SDA, SDC)
Hysteresis input
(RESETB, CAMCKI, SDA, SDC)
IOH=-1.0mA(DC)
(including input mode of I/O terminal)
IOL=1.0mA(DC)
(including input mode of I/O terminal)
●Recommended Application Circuit
CAMDI[7:0]
8
Color
Correction
YUV=4:2:2
Luminance
Distinction
8
CAMDO[7:0]
CAMDI[7:0]
CAMDI[7:0]
CAMHSI
YUV=4:2:2
CAMHSO
CAMHSI
CAMVSI
Image
Enhance
CAMDO[7:0]
Camera
Module
CAMCKI
BU1571KN
CAMVSO
CAMVSI
CAMCKO
CAMCKI
CAMDO[7:0]
CAMHSO
CAMVSO
Image
Processing
IC
CAMCKO
SDA SDC
SDA
SDC
CAMHSI
CAMVSI
SDA
SDC
Serial
Interface
CAMHSO
Timing
Generator
CAMCKI
CAMVSO
HOST
CPU
CAMCKO
*Extra document is prepared separately about system evaluation. Please refer to the Development Scheme on page 6.
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© 2010 ROHM Co., Ltd. All rights reserved.
2/8
2010.06 - Rev.C
Technical Note
BU1571KN
●Terminal functions
PIN No. PIN Name
1
CAMVSI
2
N.C.
3
In/Out Active Level
Init
Function explanation
I/O type
In
*
-
Vertical Timing Input (pull-down at sleep mode)
B*1
CAMHSI
In
*
-
Horizontal Timing Input (pull-down at sleep mode)
B*1
4
CAMDI0
In
DATA
-
Data Input Bit 0 (pull-down at sleep mode)
B*1
5
CAMDI1
In
DATA
-
Data Input Bit 1 (pull-down at sleep mode)
B*1
6
CAMDI2
In
DATA
-
Data Input Bit 2 (pull-down at sleep mode)
B*1
7
CAMDI3
In
DATA
-
Data Input Bit 3 (pull-down at sleep mode)
B*1
8
CAMDI4
In
DATA
-
Data Input Bit 4 (pull-down at sleep mode)
B*1
9
CAMDI5
In
DATA
-
Data Input Bit 5 (pull-down at sleep mode)
B*1
10
CAMDI6
In
DATA
-
Data Input Bit 6 (pull-down at sleep mode)
B*1
11
CAMDI7
In
DATA
-
Data Input Bit 7 (pull-down at sleep mode)
B*1
12
VDDIO
-
PWR
-
DIGITAL IO Power Source
13
CAMCKI
In
CLK
-
Clock Input (pull-down at sleep mode)
14
GND
-
GND
-
Common GROUND
-
15
VDD
-
PWR
-
CORE Power Source
-
16
SDA
In/Out
DATA
In
In/Output Serial Data
E
17
SDC
In/Out
CLK
In
In/Output Serial Clock
E
18
TESTOUT
Out
High
-
TEST Out Pin ( Keep Open )
-
19
CAMVSO
Out
-
-
Vertical Timing Signal Output
C
20
N.C.
21
CAMHSO
Out
-
-
Horizontal Timing Signal Output
C
22
CAMDO0
Out
DATA
-
Data Output: Bit 0
C
23
CAMDO1
Out
DATA
-
Data Output: Bit 1
C
24
CAMDO2
Out
DATA
-
Data Output: Bit 2
C
25
CAMDO3
Out
DATA
-
Data Output: Bit 3
C
26
CAMDO4
Out
DATA
-
Data Output: Bit 4
C
27
CAMDO5
Out
DATA
-
Data Output: Bit 5
C
28
CAMDO6
Out
DATA
-
Data Output: Bit 6
C
29
CAMDO7
Out
DATA
-
Data Output: Bit 7
C
30
TEST1
In
Low
-
Test Mode Terminal 1 (Connect to GND)
B
31
TEST2
In
Low
-
Test Mode Terminal 2 (Connect to GND)
B
32
RESETB
In
Low
-
System Reset Signal
A
33
VDDIO
-
PWR
-
DIGITAL IO Power Source
-
34
CAMCKO
Out
CLK
-
Clock Output
C
35
GND
-
GND
-
Common GROUND
-
36
VDD
-
PWR
-
CORE Power Source
-
D*1
*”*” in the Active Level column indicates that it may be changed during set-up of the register. Init indicates pin status when released from reset.
*1: Pull-down is ON during reset (initial status).
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© 2010 ROHM Co., Ltd. All rights reserved.
3/8
2010.06 - Rev.C
Technical Note
BU1571KN
●Equivalent Circuit Structures of input / output pins
Type
The equivalent circuit structure
Type
The equivalent circuit structure
VDDIO
VDDIO
VDDIO
Internal signal
To internal
A
To internal
B
GND
GND
GND
Input terminal with PULL-DOWN
Input terminal with Schmitt
VDDIO
GND
VDDIO
VDDIO
Internal signal
Internal signal
C
To internal
D
GND
GND
GND
GND
Output terminal
Hysteresis input terminal with PULL-DOWN
VDDIO
VDDIO
Internal signal
To
VDDIO
internal
Internal signal
GND
E
Internal signal
GND
GND
Hysteresis input / output terminal
CAMDI5
CAMDI4
CA MDI3
CAMDI2
CAMDI1
CAMDI0
CAMHSI
N.C.
CAMVSI
●Terminal Layout
(Bottom View)
VDD
CAMDI6
GND
CAMDI7
VDDIO
CAMCKO
CAMCKI
VDDIO
RESETB
GND
TEST2
VDD
TEST1
SDA
CAMDO7
SDC
CAMDO6
TESTOUT
CAMVSO
CAMHSO
4/8
N.C.
CAMDO0
CAMDO1
CAMDO2
CAMDO3
CAMDO4
CAMDO5
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© 2010 ROHM Co., Ltd. All rights reserved.
2010.06 - Rev.C
Technical Note
BU1571KN
●Timing Chart
1. Two-line serial interface
1.1 Two-line serial interface timing
SDA
tSU;DAT
tLOW
tBUF
tHD;ST
SDC
tHD;STA
tHD;DAT
tHIGH
tSU;STA
tSU;STO
Table 1 I2C Interface timing
Symbol
Parameter
fSCL
SDC Clock Frequency
Hold-time(repetition)『START』conditions
(The first clock pulse is generated after this period.)
The "L" period of SDC clock
tHD;STA
fLOW
MIN.
TYP.
MAX.
Unit
0
-
400
kHz
0.6
-
-
µs
1.3
-
-
µs
tHIGH
The "H" period of SDC clock
0.6
-
-
µs
tSU;STA
Setup time of repetitive 『START』conditions
0.6
-
-
µs
tHD;DAT
Hold time of SDA
0
-
tSU;DAT
Setup time of SDA
100
-
-
µs
ns
tSU;STO
Setup time of the 『STOP』conditions
0.6
-
-
µs
tBUF
BUS free time between 『STOP』conditions and the 『START』conditions
1.3
-
-
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.
Table 2.
CAMVSI
Symbol
CAMHSI
CAMDI0
－CAMDI7
CAMCKI
(CKPOL=“1”)
BU1571KN timing (Camera data input)
Explanation
MIN. TYP. MAX. UNIT
tCMS
CAMCKI Rise / Fall
Camera set-up Time
4
-
-
ns
tCMH
CAMCKI Rise / Fall
Camera Hold Time
4
-
-
ns
CAMCKI
(CKPOL=“0”)
tCMS
tCMH
The input timing of camera image signal on camera I/F is shown in Table 2.1-2.
Table 2.
tPCLK
Symbol
CAMCKO
tPHH
CAMVSO
MIN. TYP. MAX. UNIT
tPCLK
Clock Cycle
19.2
-
-
ns
dPCLK
Clock Duty
45
50
55
%
tPDV
Decision of CAMDO from
CAMCKO
-
-
5
ns
tPHL,
tPHH
Decision of CAMVSO or
CAMHSO from CAMCKO
-
-
5
ns
tPDV
CAMDO[7:0]
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Explanation
tPHL
CAMHSO
© 2010 ROHM Co., Ltd. All rights reserved.
Camera data output timing
5/8
2010.06 - Rev.C
Technical Note
BU1571KN
●Development Scheme
This technical note is aimed at trying the connectivity in the hardware between customer’s system and our AIE Adaptive
Image Enhancer series.
We prepare various data and tools for every development STEP as follows other than this technical note, please contact the
sales staff in your duty also including the support system.
(1) Demonstration STEP
(You can try the standard image processing functions by the standard Demonstration kit at once.)
You can confirm on TV screen what carried out AIE processing of a camera image and the DVD video image.
・Standard Demonstration board kit
◎Demonstration board(TV-IN→BU1571KN→TV-OUT board)
◎Demonstration board operation manual
◎Demonstration software
If the software for the trial board is installed in your Windows PC(Windows 2000/XP), more detailed setting is
possible.
◎USB cable
(2) Confirmation STEP
(We will respond to customer’s camera module.)
・Specifications
We will provide specifications for AIE Adaptive Image Enhancer according to customer’s requirements.
・Function explanation
We will deliver you the function explanation describing detailed functions, register settings, external interfaces,
timing, and so forth of AIE Adaptive Image Enhancer according to your requests.
・Application note
We will deliver you the detailed explanation data on application development of AIE Adaptive Image Enhancer
according to your requests.
(3) System check STEP
(You can check the application operation as a system by the kit of system check tools and your camera module.)
You can check the interface with your camera module and the application operation on the system check board using
the tools for user’s only.
・System check tools kit
◎Board for system evaluation
◎Manual for system evaluation
◎Macro command file for reference
*You can check the detailed functions of the application operation by your PC using the macro command file.
(4) Integrated check STEP with user’s system
(You can check the application operation as a system on your system check board using the integrated check software.)
You can check the application operation on the sample LSI-equipped system check board by your camera module using
the integrated check software.
・On line Support；We will answer your questions about the software development.
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© 2010 ROHM Co., Ltd. All rights reserved.
6/8
2010.06 - Rev.C
Technical Note
BU1571KN
●Notes for use
(1)Absolute Maximum Ratings
An excess in the absolute maximum ratings, such as supply voltage, temperature range of operating conditions, etc., can break
down devices, thus making impossible to identify breaking mode such as a short circuit or an open circuit. If any special mode
exceeding the absolute maximum ratings is assumed, consideration should be given to take physical safety measures including
the use of fuses, etc.
(2)Operating conditions
These conditions represent a range within which characteristics can be provided approximately as expected. The electrical
characteristics are guaranteed under the conditions of each parameter.
(3)Reverse connection of power supply connector
The reverse connection of power supply connector can break down ICs. Take protective measures against the breakdown due to
the reverse connection, such as mounting an external diode between the power supply and the IC’s power supply terminal.
(4)Power supply line
Design PCB pattern to provide low impedance for the wiring between the power supply and the GND lines.
In this regard, for the digital block power supply and the analog block power supply, even though these power supplies has the
same level of potential, separate the power supply pattern for the digital block from that for the analog block, thus suppressing the
diffraction of digital noises to the analog block power supply resulting from impedance common to the wiring patterns. For the
GND line, give consideration to design the patterns in a similar manner.
Furthermore, for all power supply terminals to ICs, mount a capacitor between the power supply and the GND terminal. At the
same time, in order to use an electrolytic capacitor, thoroughly check to be sure the characteristics of the capacitor to be used
present no problem including the occurrence of capacity dropout at a low temperature, thus determining the constant.
(5)GND voltage
Make setting of the potential of the GND terminal so that it will be maintained at the minimum in any operating state. Furthermore,
check to be sure no terminals are at a potential lower than the GND voltage including an actual electric transient.
(6)Short circuit between terminals and erroneous mounting
In order to mount ICs on a set PCB, pay thorough attention to the direction and offset of the ICs. Erroneous mounting can break
down the ICs. Furthermore, if a short circuit occurs due to foreign matters entering between terminals or between the terminal and
the power supply or the GND terminal, the ICs can break down.
(7)Operation in strong electromagnetic field
Be noted that using ICs in the strong electromagnetic field can malfunction them.
(8)Inspection with set PCB
On the inspection with the set PCB, if a capacitor is connected to a low-impedance IC terminal, the IC can suffer stress. Therefore,
be sure to discharge from the set PCB by each process. Furthermore, in order to mount or dismount the set PCB to/from the jig
for the inspection process, be sure to turn OFF the power supply and then mount the set PCB to the jig. After the completion of
the inspection, be sure to turn OFF the power supply and then dismount it from the jig. In addition, for protection against static
electricity, establish a ground for the assembly process and pay thorough attention to the transportation and the storage of the set
PCB.
(9)Input terminals
In terms of the construction of IC, parasitic elements are inevitably formed in relation to potential. The operation of the parasitic
element can cause interference with circuit operation, thus resulting in a malfunction and then breakdown of the input terminal.
Therefore, pay thorough attention not to handle the input terminals, such as to apply to the input terminals a voltage lower than
the GND respectively, so that any parasitic element will operate. Furthermore, do not apply a voltage to the input terminals when
no power supply voltage is applied to the IC. In addition, even if the power supply voltage is applied, apply to the input terminals a
voltage lower than the power supply voltage or within the guaranteed value of electrical characteristics.
(10)Ground wiring pattern
If small-signal GND and large-current GND are provided, It will be recommended to separate the large-current GND pattern from
the small-signal GND pattern and establish a single ground at the reference point of the set PCB so that resistance to the wiring
pattern and voltage fluctuations due to a large current will cause no fluctuations in voltages of the small-signal GND. Pay attention
not to cause fluctuations in the GND wiring pattern of external parts as well.
(11)External capacitor
In order to use a ceramic capacitor as the external capacitor, determine the constant with consideration given to a degradation in
the nominal capacitance due to DC bias and changes in the capacitance due to temperature, etc.
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7/8
2010.06 - Rev.C
Technical Note
BU1571KN
●Ordering part number
B
D
1
Part No.
5
7
1
K
Part No.
N
-
Package
KN:VQFN36
E
2
Packaging and forming specification
E2: Embossed tape and reel
VQFN36
6.2 ± 0.1
6.0 ± 0.1
<Tape and Reel information>
28
36
0.22±0.05
0.22 ± 0.05
1
Tape
Embossed carrier tape (with dry pack)
18
Quantity
2500pcs
10
Direction
of feed
19
9
0.08
M
+0.03
0.02 -0.02
6.2±0.1
6.0±0.1
27
+0.1
0.6 -0.3
E2
The direction is the 1pin of product is at the upper left when you hold
( reel on the left hand and you pull out the tape on the right hand
)
0.95MAX
(1.1)
0.05
3.3
(0
(0
.2
2)
)
5)
.5
(0
0.5
Notice :
Do not use the dotted line area
for soldering
1pin
Reel
(Unit : mm)
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8/8
Direction of feed
∗ Order quantity needs to be multiple of the minimum quantity.
2010.06 - Rev.C
Notice
Notes
No copying or reproduction of this document, in part or in whole, is permitted without the
consent of ROHM Co.,Ltd.
The content specified herein is subject to change for improvement without notice.
The content specified herein is for the purpose of introducing ROHM's products (hereinafter
"Products"). If you wish to use any such Product, please be sure to refer to the specifications,
which can be obtained from ROHM upon request.
Examples of application circuits, circuit constants and any other information contained herein
illustrate the standard usage and operations of the Products. The peripheral conditions must
be taken into account when designing circuits for mass production.
Great care was taken in ensuring the accuracy of the information specified in this document.
However, should you incur any damage arising from any inaccuracy or misprint of such
information, ROHM shall bear no responsibility for such damage.
The technical information specified herein is intended only to show the typical functions of and
examples of application circuits for the Products. ROHM does not grant you, explicitly or
implicitly, any license to use or exercise intellectual property or other rights held by ROHM and
other parties. ROHM shall bear no responsibility whatsoever for any dispute arising from the
use of such technical information.
The Products specified in this document are intended to be used with general-use electronic
equipment or devices (such as audio visual equipment, office-automation equipment, communication devices, electronic appliances and amusement devices).
The Products specified in this document are not designed to be radiation tolerant.
While ROHM always makes efforts to enhance the quality and reliability of its Products, a
Product may fail or malfunction for a variety of reasons.
Please be sure to implement in your equipment using the Products safety measures to guard
against the possibility of physical injury, fire or any other damage caused in the event of the
failure of any Product, such as derating, redundancy, fire control and fail-safe designs. ROHM
shall bear no responsibility whatsoever for your use of any Product outside of the prescribed
scope or not in accordance with the instruction manual.
The Products are not designed or manufactured to be used with any equipment, device or
system which requires an extremely high level of reliability the failure or malfunction of which
may result in a direct threat to human life or create a risk of human injury (such as a medical
instrument, transportation equipment, aerospace machinery, nuclear-reactor controller, fuelcontroller or other safety device). ROHM shall bear no responsibility in any way for use of any
of the Products for the above special purposes. If a Product is intended to be used for any
such special purpose, please contact a ROHM sales representative before purchasing.
If you intend to export or ship overseas any Product or technology specified herein that may
be controlled under the Foreign Exchange and the Foreign Trade Law, you will be required to
obtain a license or permit under the Law.
Thank you for your accessing to ROHM product informations.
More detail product informations and catalogs are available, please contact us.
ROHM Customer Support System
http://www.rohm.com/contact/
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© 2010 ROHM Co., Ltd. All rights reserved.
R1010A