AK4254VF

ASAHI KASEI
[AKD4254-A]
AKD4254-A
.
AK4254 Evaluation Board Rev.2
GENERAL DESCRIPTION
AKD4254-A is an evaluation board for AK4254 that has 7:2 video switches. This board can achieve the
interface with video systems via RCA connectors.
„ Ordering guide
AKD4254-A --- AK4254 Evaluation Board
10-wire flat cable for connection with printer port of PC (IBM-AT compatible machine),
control software for AK4254, driver for control software on Windows 2000/XP are
packed with this.
Control software does not work on Windows NT
Windows 2000/XP needs an installation of driver.
Windows 95/98/ME does not need an installation of driver.
FUNCTION
• RCA connectors for video signal: 7 inputs, 2 outputs
• 10-pin header for I2C/3-wire serial control
AVDD
Port1
AVDD
I/O
Buffer
VIN1
VOUT1
VIN2
VIN3
VIN4
AK4254
VIN5
VIN6
VOUT2
VIN7
Figure 1. AKD4254-A Block Diagram
* Circuit diagram and PCB layout are attached at the end of this manual.
<KM085203>
2007/01
-1-
ASAHI KASEI
[AKD4254-A]
EVALUATION BOARD MANUAL
„ Operation sequence
1) Set up power supply lines.
Name of jack
AVDD
Color of jack
Red
Voltage
+3.0V
Used for
AVDD of AK4254
and Digital Logic
Open / connect
Should be always
connected.
Default Setting
AGND
Black
0V
Analog Ground
Should be always
connected.
0V
+3V
Table 1. Set up the power supply lines
(Note) Each supply line should be distributed from the power supply unit.
2) Set-up jumper pins and DIP switches. (See the followings.)
3) Power on.
AK4254 should be reset once bringing SW1 (PDN) to “L” upon power-up.
„ Evaluation Mode
AKD4254-A can evaluate AK4254 by the following mode.
[1] Parallel Mode
[2] Serial Mode (3-wire)
[3] Serial Mode (I2C)
[1] Parallel Mode
(1-1) Set up jumper pins [JP3, JP4]
JP3 SDA
JP4 CSN
(OPEN)
(OPEN)
(1-2) Set up DIP Switches [SW2]
Pin No. [SW2]
1
2
3
4
5
6
7
Pin Name
ON (“H”,“1”) / OFF (“L”,“0”)
SEL10
SEL11
SEL12
SEL20
SEL21
SEL22
P/S
Input Select of VOUT1
Input Select of VOUT1
Input Select of VOUT1
Input Select of VOUT2
Input Select of VOUT2
Input Select of VOUT2
ON (“H”)
Table 2. Set up DIP Switches for Parallel Mode
<KM085203>
2007/01
-2-
ASAHI KASEI
[AKD4254-A]
[2] Serial Mode (3-wire)
(1-1) Set up jumper pins [JP3, JP4]
JP3 SDA
JP4 CSN
(1-2) Set up DIP Switches [SW2]
Pin No. [SW2]
Pin Name
1
2
3
4
5
6
7
CAD0
CAD1
------I2C
P/S
ON (“H”,“1”) / OFF (“L”,“0”)
Chip Address Select (Note1)
Chip Address Select (Note1)
“Don’t Care”
“Don’t Care”
“Don’t Care”
OFF (“L”)
OFF (“L”)
Table 3. Set up DIP Switches for Serial Mode (3-wire)
(Note1) Chip Address is selected by CAD1, CAD0 pin
[3] Serial Mode (I2C)
(1-1) Set up jumper pins [JP3, JP4]
JP3 SDA
JP4 CSN
(1-2) Set up DIP Switches [SW2]
Pin No. [SW2]
Pin Name
1
2
3
4
5
6
7
CAD0
CAD1
------I2C
P/S
ON (“H”,“1”) / OFF (“L”,“0”)
Chip Address Select (Note1)
Chip Address Select (Note1)
“Don’t Care”
“Don’t Care”
“Don’t Care”
ON (“H”)
OFF (“L”)
Table 4. Set up DIP Switches for Serial Mode (I2C)
(Note1) Chip Address is selected by CAD1, CAD0 pin
„ Set up jumper pins
1. JP1 (GND) : Analog ground and Digital ground
OPEN : Separated.
SHORT : Common. (The connector “DGND” can be open.) <Default>
2. JP5 (AVDD(D-A)):AVDD and D3.3V_IN(Digital Logic power supply)
OPEN : Separated.
SHORT : Common. (JP5 should be “SHORT”.) <Default>
<KM085203>
2007/01
-3-
ASAHI KASEI
[AKD4254-A]
„ The function of the toggle SW
[SW1] (PDN) : Resets the AK4254. Keep “H” during normal operation.
„ Set up DIP switch
[SW2-8] (TEST) : Set up TEST-pin. Keep “H” during normal operation.
„ Serial Control
The AK4254 can be controlled via the printer port (parallel port) of IBM-AT compatible PC. Connect printer port
(parallel port) of PC and PORT1 (CTRL) of AKD4254-A by 10-wire flat cable (packed with AKD4254-A).
Take care of the direction of 10-pin connector and 10-pin header.
PORT1
CTRL
1
10
CSN
CCLK/SCI
Connect
PC
CDTI/SDA
SDA(ACK)
Red
10-wire
flat cable
10-pin
connector
5
6
AKD4254-A
10-pin
header
Figure 2. 10-wire flat cable, 10-pin connector, and 10-pin header
<KM085203>
2007/01
-4-
ASAHI KASEI
[AKD4254-A]
„ Input / Output circuit
(1) Video Input Circuit
VIN1~VIN7 Input circuits
Figure 3. VIN Input circuit
(2) Video Output Circuit
VOUT1, VOUT2 Output circuits
Figure 4. VOUT1 Output circuit
Figure 5. VOUT2 Output circuit
<KM085203>
2007/01
-5-
ASAHI KASEI
[AKD4254-A]
Control Software Manual
„ Set-up of evaluation board and control software
1. Set up the AKD4254-A according to previous term.
2. Connect IBM-AT compatible PC with AKD4254-A by 10-line type flat cable (packed with AKD4254-A). Take care
of the direction of 10pin header. (Please install the driver in the CD-ROM when this control software is used on
Windows 2000/XP. Please refer “Installation Manual of Control Software Driver by AKM device control software”.
In case of Windows95/98/ME, this installation is not needed. This control software does not operate on Windows
NT.)
3. Insert the CD-ROM labeled “AKD4254-A Evaluation Kit” into the CD-ROM drive.
4. Access the CD-ROM drive and double-click the icon of “akd4254-a.exe” to set up the control program.
5. Then please evaluate according to the follows.
„ Operation flow
Keep the following flow.
1. Set up the control program according to explanation above.
2. Click “Port Reset” button.
„ Explanation of each buttons
1. [Port Reset]:
2. [Write default]:
3. [All Write]:
4. [Function1]:
5. [Function3]:
6. [Function4]:
7. [Function5]:
8. [SAVE]:
9. [OPEN]:
10. [Write]:
Set up the USB interface board (AKDUSBIF-A).
Initialize the register of AK4254.
Write all registers that is currently displayed.
Dialog to write data by keyboard operation.
The sequence of register setting can be set and executed.
The sequence that is created on [Function3] can be assigned to buttons and executed.
The register setting that is created by [SAVE] function on main window can be assigned to
buttons and executed.
Save the current register setting.
Write the saved values to all register.
Dialog to write data by mouse operation.
„ Indication of data
Input data is indicated on the register map. Red letter indicates “H” or “1” and blue one indicates “L” or “0”. Blank is the
part that is not defined in the datasheet.
<KM085203>
2007/01
-6-
ASAHI KASEI
[AKD4254-A]
„ Explanation of each dialog
1. [Write Dialog]: Dialog to write data by mouse operation
There are dialogs corresponding to each register.
Click the [Write] button corresponding to each register to set up the dialog. If you check the check box, data becomes
“H” or “1”. If not, “L” or “0”.
When writing the input data to AK4254, click [OK] button. If not, click [Cancel] button.
2. [Function1 Dialog]: Dialog to write data by keyboard operation
Address Box: Input registers address in 2 figures of hexadecimal.
Data Box:
Input registers data in 2 figures of hexadecimal.
When writing the input data to AK4254, click [OK] button. If not, click [Cancel] button.
3. [Save] and [Open]
3-1. [Save]
Save the current register setting data. The extension of file name is “akr”.
(Operation flow)
Click [Save] Button.
Set the file name and push [Save] Button. The extension of file name is “akr”.
3-2. [Open]
The register setting data saved by [Save] is written to AK4254. The file type is the same as [Save].
(Operation flow)
(1) Click [Open] Button.
(2) Select the file (*.akr) and Click [Open] Button.
<KM085203>
2007/01
-7-
ASAHI KASEI
[AKD4254-A]
4. [Function3 Dialog]
The sequence of register setting can be set and executed.
(1) Click [F3] Button.
(2) Set the control sequence.
Set the address, Data and Interval time. Set “-1” to the address of the step where the sequence should be
paused.
(3) Click [Start] button. Then this sequence is executed.
The sequence is paused at the step of Interval="-1". Click [START] button, the sequence restarts from
the paused step.
This sequence can be saved and opened by [Save] and [Open] button on the [Function3] window. The extension
of file name is “aks”.
Figure 1. Window of [F3]
<KM085203>
2007/01
-8-
ASAHI KASEI
[AKD4254-A]
5. [Function4 Dialog]
The sequence that is created on [Function3] can be assigned to buttons and executed. When [F4] button is clicked,
the window as shown in Figure 2 opens.
Figure 2. [F4] window
<KM085203>
2007/01
-9-
ASAHI KASEI
[AKD4254-A]
5-1. [OPEN] buttons on left side and [START] buttons
(1) Click [OPEN] button and select the sequence file (*.aks).
The sequence file name is displayed as shown in Figure 3.
Figure 3. [F4] window(2)
(2) Click [START] button, then the sequence is executed.
5-2. [SAVE] and [OPEN] buttons on right side
[SAVE]: The sequence file names can assign be saved. The file name is *.ak4.
[OPEN]: The sequence file names assign that are saved in *.ak4 are loaded.
5-3. Note
(1) [Function4] doesn't support the pause function of sequence function.
(2) All files need to be in same folder used by [SAVE] and [OPEN] function on right side.
(3) When the sequence is changed in [Function3], the file should be loaded again in order to reflect the change.
<KM085203>
2007/01
- 10 -
ASAHI KASEI
[AKD4254-A]
6. [Function5 Dialog]
The register setting that is created by [SAVE] function on main window can be assigned to buttons and executed.
When [F5] button is clicked, the following window as shown in Figure 4 opens.
Figure 4. [F5] window
6-1. [OPEN] buttons on left side and [WRITE] button
(1) Click [OPEN] button and select the register setting file (*.akr).
(2) Click [WRITE] button, then the register setting is executed.
6-2. [SAVE] and [OPEN] buttons on right side
[SAVE]: The register setting file names assign can be saved. The file name is *.ak5.
[OPEN]: The register setting file names assign that are saved in *.ak5 are loaded.
6-3. Note
(1) All files need to be in same folder used by [SAVE] and [OPEN] function on right side.
(2) When the register setting is changed by [Save] Button in main window, the file should be loaded again in order
to reflect the change.
<KM085203>
2007/01
- 11 -
ASAHI KASEI
[AKD4254-A]
MEASUREMENT RESULTS
„ Video
[Measurement condition]
• Signal Generator : Sony Tectonics TG2000
• Measurement unit : Sony Tectonics VM700T
• Power Supply : AVDD=3V
• Temperature : Room
• Measurement signal line path : VIN1 → VOUT1
Parameter
S/N
Crosstalk
Measurement conditions
Input = 0% flat field
BW= 100kHz to 6MHz
Input = 100%Red(PAL),
Measured at VOUT1
DG
Input = Modulated 5 Step
DP
Input = Modulated 5 Step
Results
Unit
68.8
dB
70.4
dB
min. 0.00
max. 0.77
min. 0.00
max. 1.84
%
deg.
Plots
Figure 1-1. Noise spectrum (Input=0%flat field, BW=100kHz to 6MHz)
Figure 1-2 Crosstalk (Input= 100% red composite (VIN1), measured at VOUT1)
Figure 1-3 Crosstalk (Input= 100% red Y-Signal (VIN2), measured at VOUT1)
Figure 1-4 DG, DP (Input= Modulated 5 Step)
<KM085203>
2007/01
- 12 -
ASAHI KASEI
[AKD4254-A]
Plots(Video)
Figure 1-1. Noise spectrum (Input=0%flat field, BW=100kHz to 6MHz)
<KM085203>
2007/01
- 13 -
ASAHI KASEI
[AKD4254-A]
Figure 1-2 Crosstalk (Input= 100% red composite (VIN1), measured at VOUT1)
<KM085203>
2007/01
- 14 -
ASAHI KASEI
[AKD4254-A]
Figure 1-3 Crosstalk (Input= 100% red Y-Signal (VIN2), measured at VOUT1)
Figure 1-4 DG, DP (Input= Modulated 5 Step)
<KM085203>
2007/01
- 15 -
ASAHI KASEI
[AKD4254-A]
Revision History
Date
(YY/MM/DD)
07/01/09
Manual
Revision
KM085203
Board
Revision
2
Reason
Contents
First Edition
IMPORTANT NOTICE
• These products and their specifications are subject to change without notice. Before considering any use or
application, consult the Asahi Kasei Microsystems Co., Ltd. (AKM) sales office or authorized distributor
concerning their current status.
• AKM assumes no liability for infringement of any patent, intellectual property, or other right in the application
or use of any information contained herein.
• Any export of these products, or devices or systems containing them, may require an export license or other
official approval under the law and regulations of the country of export pertaining to customs and tariffs,
currency exchange, or strategic materials.
• AKM products are neither intended nor authorized for use as critical components in any safety, life support, or
other hazard related device or system, and AKM assumes no responsibility relating to any such use, except
with the express written consent of the Representative Director of AKM. As used here:
(a) A hazard related device or system is one designed or intended for life support or maintenance of safety or
for applications in medicine, aerospace, nuclear energy, or other fields, in which its failure to function or
perform may reasonably be expected to result in loss of life or in significant injury or damage to person or
property.
(b) A critical component is one whose failure to function or perform may reasonably be expected to result,
whether directly or indirectly, in the loss of the safety or effectiveness of the device or system containing
it, and which must therefore meet very high standards of performance and reliability.
• It is the responsibility of the buyer or distributor of an AKM product who distributes, disposes of, or otherwise
places the product with a third party to notify that party in advance of the above content and conditions, and the
buyer or distributor agrees to assume any and all responsibility and liability for and hold AKM harmless from
any and all claims arising from the use of said product in the absence of such notification.
<KM085203>
2007/01
- 16 -
5
4
3
2
1
D
D
JP1
GND(D-A)
AGND
DGND
CN2
CN1
U1
1
1
2
2
3
3
4
4
C1
1u
C2
1u
C
5
6
VVOUT1
CVDD2
30
CP1
CP2
29
CN1
CN2
28
CVSS1
CVSS2
27
5
CVEE1
CVEE2
26
6
VOUT1
VOUT2
25
25
CVDD1
30
29
C3
1u
28
27
C4
1u
C
26
AK4254
AVDD_IN
7
+
8
B
C5
10u
C6
0.1u
VVOUT2
R1
7
AVDD
PDN
24
24
8
AVSS
I2C/SEL22
23
23
I2C/SEL22
PDN
51
TEST
9
9
TEST
CDTI/SDA/SEL21
22
22
CDTI/SDA/SEL21
P/S
10
10
P/S
CCLK/SCL/SEL20
21
21
4254_CCLK/SCL/SEL20
VVIN1
11
11
VIN1
CSN/SEL12
20
20
CSN/SEL12
VVIN2
12
12
VIN2
CAD1/SEL11
19
19
CAD1/SEL11
VVIN3
13
13
VIN3
CAD0/SEL10
18
18
CAD0/SEL10
VVIN4
14
14
VIN4
VIN7
17
17
VVIN7
15
15
VIN6
16
16
VVIN6
VVIN5
VIN5
30pin_1
B
30pin_2
A
A
Title
Size
Document Number
AKD4254-A
AK4254
A2
Date:
5
4
3
2
Sheet
1
Rev
0
1
of
4
A
B
C
D
E
D3.3V_IN
E
E
CAD0/SEL10
CAD1/SEL11
CSN/SEL12
CCLK/SCL/SEL20
CDTI/SDA/SEL21
I2C/SEL22
P/S
TEST
RP1
SW2
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
MODE
1
2
3
4
5
6
7
8
9
CSN/SEL12
CCLK/SCL/SEL20
CAD0/SEL10
CAD1/SEL11
CSN/SEL12
CCLK/SCL/SEL20
CDTI/SDA/SEL21
I2C/SEL22
P/S
TEST
47k
D
D
JP4
2
3
1
CDTI/SDA/SEL21
CSN/SEL12
R4
R5
R6
D3.3V_IN
1
2
3
4
5
PORT1
10
9
8
7
6
R7
R8
R9
10k
10k
10k
CSN
CCLK/SCI
CDTI/SDA
SDA(ACK)
470
470
470
R10
51
CTRL
U4
2
3
5
6
11
10
14
13
1
15
1A
1B
2A
2B
3A
3B
4A
4B
A/B
G
1Y
4
2Y
7
3Y
9
4Y
12
VCC
GND
16
8
CSN
4254_CCLK/SCL/SEL20
JP3
2
3
1
CDTI/SDA/SEL21
D3.3V_IN
SDA
C8
74LVC157
0.1u
R11
3.9k
C
C
D3.3V_IN
R3
D3.3V_IN
P/S
10k
14
2
7
U3A 74LVC07
1
B
B
1
2
D3.3V_IN
D3.3V_IN
R2
D1
HSU119
D3.3V_IN
10k
U2A
1
U2B
3
14
4
7
74HC14
PDN
1
H
SW1
C7
PDN
0.1u
2
3
L
14
2
7
74HC14
A
A
Title
Size
A3
Date:
A
B
C
D
Document Number
AKD4254-A
Rev
LOGIC
0
Sheet
E
2
of
4
3
2
AVDD
AGND
T45_R
T45_BK
1
1
4
1
5
D
D
AVDD
AGND
AVDD
JP5
R12
AVDD(D-A)
(short)
C9 +
AVDD_IN
47u
C
C
L1
D3.3V_IN
(short)
D3.3V_IN
C11
C12
0.1u
0.1u
B
3
U3B 14
4
7
74LVC07
5
U3C 14
6
7
74LVC07
9
U3D 14
8
7
74LVC07
11
U3E 14
10
7
74LVC07
13
U3F 14
12
7
74LVC07
U2C
5
14
6
7
74HC14
U2D
9
14
8
7
74HC14
U2E
11
14
10
7
74HC14
U2F
13
A
14
12
7
74HC14
B
A
Title
Size
A3
Date:
5
4
3
2
Document Number
AKD4254-A
POWER SUPPLY
Sheet
1
3
of
Rev
4
0
5
4
C13
(open)
2
1
J1
VOUT1
R13
75
1
VVOUT1
R14
(open)
3
C14
(open)
R15
(open)
2
3
4
5
2
3
4
5
D
2
3
4
5
2
3
4
5
J3
VIN1
1
R24
75
J4
VIN2
1
VVOUT2
C20
(open)
C28
0.1u
R25
1
VVIN2
(short)
R26
75
J5
VIN3
C29
0.1u
R27
1
VVIN3
(short)
R28
75
J6
VIN4
C
C30
0.1u
R29
1
VVIN4
(short)
R30
75
J2
VOUT2
R18
75
R19
(open)
D
VVIN1
(short)
C
2
3
4
5
C27
0.1u
R23
C21
(open)
R20
(open)
2
3
4
5
2
3
4
5
J7
VIN5
C31
0.1u
R31
1
VVIN5
(short)
R32
75
B
B
2
3
4
5
2
3
4
5
J8
VIN6
C32
0.1u
R33
1
VVIN6
(short)
R34
75
J9
VIN7
C33
0.1u
R35
1
VVIN7
(short)
R36
75
A
A
Title
Size
A3
Date:
5
4
3
2
Document Number
AKD4254-A
Video Block Input/Output Circuit
Sheet
1
4
of
Rev
4
0
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