BU1571KN_10_技术文档

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

Supply power source

voltage

Camera

Interface

Control

Interface

Output

Interface

Interrupt

output

Parameter

Package

VQFN36

Supported up to

Max 2M pixels.

(1600×1200)

8bit

YUV=4:2:2

Camera interface

1.45-1.55(V_DDCore)

2.7-3.6(V_DDIo)

BU1571KN

I²C BUS

-

●Absolute maximum ratings (Ta=25℃)

Parameter

Symbol

Ratings

Unit

Supply power source voltage 1

Supply power source voltage 2

Input voltage

VDDIO

VDD

VIN

-0.3 ~ +4.2

-0.3 ~ +2.1

V

-0.3 ~ VDDIO+0.3

-40 ~ +125

450

V

Storage temperature range

Power dissipation

Tstg

℃

mW

PD

*In the case exceeding 25℃, 4.5mW should be reduced at the rating 1℃.

●Recommended operating range

Parameter

Symbol

Ratings

Unit

VDDIO

VDD

2.70 ~ 3.60(Typ:3.3V)

1.45 ~ 1.55(Typ:1.50V)

0 ~ VDDIO

V

Supply power source voltage 1(IO)

Supply power source voltage 2(CORE)

Input voltage range

VIN-VDDIO

Topr

V

-40 ~ +85

℃

Operating temperature range

*Please supply power source in order of VDD→VDDIO.

www.rohm.com

2010.06 - Rev.C

1/8

Technical Note

BU1571KN

●Electric characteristics

(Unless otherwise specified, VDD=1.50V,VDDIO=3.3V,GND=0.0V,Ta=25℃,f_IN=52.0MHz)

Limits

TYP.

Parameter

Symbol

f_IN

Unit

Condition

MIN.

10.0

MAX.

52.0

Input frequency

-

MHz CAMCKI(DUTY45% ~ 55%)

mA At enhance mode setting

Operating consumption current

Static consumption current

Input ”H” current 1

IDD1

IDDst

IIH1

-

15

-

At sleep mode setting,

µA

-

30

10

140

10

input terminal=GND setting

-10

35

-10

-

µA VIH=VDDIO

Input ”H” current 2

IIH2

70

µA Pull-Down terminal, VIH=VDDIO

µA VIL=GND

Input ”L” current 1

IIL1

-

Input ”L” current 2

IIL2

-

µA Pull-Down terminal, VIL=GND

VDDIO

0.8

VDDIO

+0.3

Normal input

(including input mode of I/O terminal)

Input ”H” voltage 1

Input ”L” voltage 1

VIH1

VIL1

VIH2

VIL2

Vhys

VOH

VOL

-

V

VDDIO

0.2

Normal input

(including input mode of I/O terminal)

-0.3

-

V

VDDIO

0.85

VDDIO

+0.3

Hysteresis input

(RESETB, CAMCKI, SDA, SDC)

Input ”H” voltage 2

Input ”L” voltage 2

-

V

VDDIO

0.15

Hysteresis input

(RESETB, CAMCKI, SDA, SDC)

-0.3

-

0.5

-

V

Hysteresis input

(RESETB, CAMCKI, SDA, SDC)

Hysteresis voltage width

Output ”H” voltage

-

V

VDDIO

-0.4

IOH=-1.0mA(DC)

(including input mode of I/O terminal)

VDDIO

0.4

V

IOL=1.0mA(DC)

(including input mode of I/O terminal)

Output ”L” voltage

0.0

-

V

●Block Diagram

●Recommended Application Circuit

CAMDI[7:0]

YUV=4:2:2

8

CAMDI[7:0]

CAMHSI

CAMDO[7:0]

YUV=4:2:2

CAMDO[7:0]

CAMHSO

CAMDI[7:0]

Color

Correction

8

CAMHSO

CAMVSO

CAMCKO

Image

Processing

IC

CAMHSI

CAMVSI

CAMCKI

BU1571KN

CAMVSI

CAMCKI

Luminance

Distinction

CAMVSO

Image

Enhance

Camera

Module

CAMCKO

SDA SDC

SDA

SDC

SDA

SDC

Serial

Interface

CAMHSI

CAMVSI

CAMHSO

HOST

CPU

Timing

Generator

CAMVSO

CAMCKO

CAMCKI

*Extra document is prepared separately about system evaluation. Please refer to the Development Scheme on page 6.

www.rohm.com

2010.06 - Rev.C

2/8

Technical Note

BU1571KN

●Terminal functions

PIN No. PIN Name In/Out Active Level Init

Function explanation

I/O type

B*1

1

CAMVSI

N.C.

In

*

-

Vertical Timing Input (pull-down at sleep mode)

2

3

CAMHSI

CAMDI0

CAMDI1

CAMDI2

CAMDI3

CAMDI4

CAMDI5

CAMDI6

CAMDI7

VDDIO

In

*

-

Horizontal Timing Input (pull-down at sleep mode)

Data Input Bit 0 (pull-down at sleep mode)

Data Input Bit 1 (pull-down at sleep mode)

Data Input Bit 2 (pull-down at sleep mode)

Data Input Bit 3 (pull-down at sleep mode)

Data Input Bit 4 (pull-down at sleep mode)

Data Input Bit 5 (pull-down at sleep mode)

Data Input Bit 6 (pull-down at sleep mode)

Data Input Bit 7 (pull-down at sleep mode)

DIGITAL IO Power Source

B*1

-

4

DATA

PWR

CLK

5

In

-

6

In

-

7

In

-

8

In

-

9

In

-

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

In

-

In

-

CAMCKI

GND

In

-

Clock Input (pull-down at sleep mode)

Common GROUND

D*1

-

GND

PWR

DATA

CLK

-

VDD

-

CORE Power Source

-

SDA

In/Out

Out

In

-

In/Output Serial Data

E

SDC

In/Output Serial Clock

E

TESTOUT

CAMVSO

N.C.

High

-

TEST Out Pin ( Keep Open )

-

Vertical Timing Signal Output

C

CAMHSO

CAMDO0

CAMDO1

CAMDO2

CAMDO3

CAMDO4

CAMDO5

CAMDO6

CAMDO7

TEST1

Out

In

-

Horizontal Timing Signal Output

Data Output: Bit 0

C

B

A

-

DATA

Low

Data Output: Bit 1

Data Output: Bit 2

Data Output: Bit 3

Data Output: Bit 4

Data Output: Bit 5

Data Output: Bit 6

Data Output: Bit 7

Test Mode Terminal 1 (Connect to GND)

Test Mode Terminal 2 (Connect to GND)

System Reset Signal

DIGITAL IO Power Source

Clock Output

TEST2

In

Low

RESETB

VDDIO

In

Low

-

PWR

CLK

CAMCKO

GND

Out

-

C

-

GND

PWR

Common GROUND

VDD

-

CORE Power Source

-

*”*” 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).

www.rohm.com

2010.06 - Rev.C

3/8

Technical Note

BU1571KN

●Equivalent Circuit Structures of input / output pins

Type

The equivalent circuit structure

Type

The equivalent circuit structure

VDDIO

Internal signal

To internal

A

B

GND

Input terminal with PULL-DOWN

VDDIO

Input terminal with Schmitt

VDDIO

Internal signal

To internal

Internal signal

C

D

GND

Output terminal

Hysteresis input terminal with PULL-DOWN

VDDIO

To

VDDIO

Internal signal

VDDIO

internal

Internal signal

GND

E

GND

Hysteresis input / output terminal

●Terminal Layout

(Bottom View)

VDD

GND

CAMDI6

CAMDI7

VDDIO

CAMCKI

GND

CAMCKO

VDDIO

RESETB

TEST2

TEST1

VDD

SDA

SDC

CAMDO7

CAMDO6

TESTOUT

www.rohm.com

2010.06 - Rev.C

4/8

Technical Note

BU1571KN

●Timing Chart

1. Two-line serial interface

1.1 Two-line serial interface timing

SDA

t_SU;DAT

t_LOW

t_BUF

t_HD;ST

SDC

t_HD;STA

t_SU;STA

t_SU;STO

t_HD;DAT

t_HIGH

Table 1 I²C Interface timing

Symbol

Parameter

SDC Clock Frequency

Hold-time(repetition)『START』conditions

(The first clock pulse is generated after this period.)

MIN.

TYP. MAX. Unit

f_SCL

0

-

400

-

kHz

µs

t_HD;STA

0.6

f_LOW

The "L" period of SDC clock

The "H" period of SDC clock

Setup time of repetitive 『START』conditions

Hold time of SDA

1.3

0.6

0

-

µs

ns

µs

t_HIGH

t_SU;STA

t_HD;DAT

t_SU;DAT

t_SU;STO

t_BUF

Setup time of SDA

100

0.6

1.3

-

Setup time of the 『STOP』conditions

BUS free time between 『STOP』conditions and the 『START』conditions

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. BU1571KN timing (Camera data input)

CAMVSI

CAMHSI

CAMDI0

Symbol

tCMS

Explanation

MIN. TYP. MAX. UNIT

CAMCKI Rise / Fall

Camera set-up Time

4

-

ns

－CAMDI7

CAMCKI Rise / Fall

Camera Hold Time

tCMH

CAMCKI

(CKPOL=“1”)

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.

Symbol

Camera data output timing

tPCLK

Explanation

MIN. TYP. MAX. UNIT

CAMCKO

tPCLK

Clock Cycle

19.2

-

50

-

55

5

ns

%

tPHH

tPHL

CAMVSO

CAMHSO

dPCLK Clock Duty

45

-

tPDV

Decision of CAMDO from

CAMCKO

tPDV

ns

CAMDO[7:0]

tPHL,

tPHH

Decision of CAMVSO or

CAMHSO from CAMCKO

-

5

www.rohm.com

2010.06 - Rev.C

5/8

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.

www.rohm.com

2010.06 - Rev.C

6/8

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.

www.rohm.com

2010.06 - Rev.C

7/8

Technical Note

BU1571KN

●Ordering part number

B

D

1

5

7

1

K

N

-

E

2

Part No.

Package

KN:VQFN36

Packaging and forming specification

E2: Embossed tape and reel

VQFN36

6.2 0.1

6.0 0.1

(1.1)

Tape

Embossed carrier tape (with dry pack)

27

19

28

18

10

Quantity

2500pcs

E2

36

Direction

of feed

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

1

9

0.22 0.05

M

(

)

0.08

+0.1

0.05

3-

(0.

0.6

(0.5)

-

0.3

3

)

5)

Notice :

Do not use the dotted line area

for soldering

22

Direction of feed

1pin

(0.

0.5

Reel

Order quantity needs to be multiple of the minimum quantity.

(Unit : mm)

∗

www.rohm.com

2010.06 - Rev.C

8/8

Notice

N o t e s

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, commu-

nication 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, fuel-

controller 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/

www.rohm.com

R1010

A


型号：	BU1571KN_10
厂家：	ROHM
描述：	Image Correction IC for Camera 图像校正IC相机
文件：	总9页 (文件大小：228K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

BU1571KN_10 [ROHM]

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