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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
I/O Buffer
VIN1 VIN2 VIN3 VIN4 VIN5 VIN6 VIN7 VOUT2 VOUT1
Figure 1. AKD4254-A Block Diagram * Circuit diagram and PCB layout are attached at the end of this manual.
-1-
AVDD
AK4254
2007/01
ASAHI KASEI
[AKD4254-A]
EVALUATION BOARD MANUAL Operation sequence
1) Set up power supply lines. Name of jack AVDD AGND Color of jack Red Black Voltage +3.0V 0V Used for AVDD of AK4254 and Digital Logic Analog Ground Open / connect Should be always connected. Should be always connected. Default Setting
+3V
0V
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] Pin Name ON ("H","1") / OFF ("L","0")
1 2 3 4 5 6 7
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
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2007/01
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 ON ("H","1") / OFF ("L","0") Chip Address Select (Note1) Chip Address Select (Note1)
1 2 3 4 5 6 7
CAD0 CAD1 ------I2C P/S
"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 ON ("H","1") / OFF ("L","0") Chip Address Select (Note1) Chip Address Select (Note1)
1 2 3 4 5 6 7
CAD0 CAD1 ------I2C P/S
"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.)
2. JP5 (AVDD(D-A)):AVDD and D3.3V_IN(Digital Logic power supply) OPEN : Separated. SHORT : Common. (JP5 should be "SHORT".)
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2007/01
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 Connect PC CCLK/SCI 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
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2007/01
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
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2007/01
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.
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2007/01
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.
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2007/01
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]
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2007/01
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
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2007/01
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.
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2007/01
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.
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2007/01
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 DG DP Measurement conditions Input = 0% flat field BW= 100kHz to 6MHz Input = 100%Red(PAL), Measured at VOUT1 Input = Modulated 5 Step Input = Modulated 5 Step Results 68.8 70.4 min. 0.00 max. 0.77 min. 0.00 max. 1.84 Unit dB dB % 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)
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2007/01
ASAHI KASEI
[AKD4254-A]
Plots(Video)
Figure 1-1. Noise spectrum (Input=0%flat field, BW=100kHz to 6MHz)
- 13 -
2007/01
ASAHI KASEI
[AKD4254-A]
Figure 1-2 Crosstalk (Input= 100% red composite (VIN1), measured at VOUT1)
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2007/01
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)
- 15 -
2007/01
ASAHI KASEI
[AKD4254-A]
Revision History
Date (YY/MM/DD) 07/01/09 Manual Revision KM085203 Board Revision 2 Reason First Edition Contents
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.
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2007/01
5
4
3
2
1
D
D
JP1 GND(D-A)
AGND
DGND
CN1 U1
CN2
1
1
CVDD1
CVDD2
30
30
2
2
CP1
CP2
29
29
C1 1u
3
3
CN1
CN2
28
C3 1u
28
4
C
4
CVSS1
CVSS2
27
27
5
C2 1u
5
CVEE1
CVEE2
26
C4 1u
C
26
VVOUT1 AVDD_IN
6
6
VOUT1
VOUT2
25
25
VVOUT2 R1
AK4254
7 7 AVDD PDN 24 24 8
PDN 51
C5 10u
+
C6 0.1u
8
AVSS
I2C/SEL22
23
23
I2C/SEL22
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
B
14
14
VIN4
VIN7
17
17
VVIN7
B
VVIN5
15
15
VIN5
VIN6
16
16
VVIN6
30pin_1
30pin_2
A
A
Title Size A2 Date:
5 4 3 2
Document Number
AKD4254-A
AK4254
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
MODE
16 15 14 13 12 11 10 9
CSN/SEL12 CCLK/SCL/SEL20
D
1 2 3 4 5 6 7 8 9
47k JP4 3 1 2
CAD0/SEL10 CAD1/SEL11 CSN/SEL12 CCLK/SCL/SEL20 CDTI/SDA/SEL21 I2C/SEL22 P/S TEST
D
CDTI/SDA/SEL21
U4
CSN/SEL12 D3.3V_IN
R4 R5 R6
10k 10k 10k
R7 R8 R9
470 470 470
1 2 3 4 5
PORT1 10 9 8 7 6
CSN CCLK/SCI CDTI/SDA SDA(ACK)
2 3 5 6 11 10 14 13 1 15
1A 1B 2A 2B 3A 3B 4A 4B A/B G
1Y 2Y 3Y 4Y VCC GND
4 7 9 12
CSN
4254_CCLK/SCL/SEL20
JP3 3 1 2
D3.3V_IN
16 8
SDA C8
CDTI/SDA/SEL21
R10
CTRL
51
R11
74LVC157
0.1u
3.9k
C
D3.3V_IN
R3
C
D3.3V_IN P/S
14 2 7 U3A 74LVC07 1
10k
B
D3.3V_IN
2
R2 D1 HSU119
B
D3.3V_IN
U2A
D3.3V_IN
U2B
10k
1 14 2 7 74HC14 3 14 4 7 74HC14
1
PDN
L
3 1
H
SW1 C7
PDN
2
0.1u
A
A
Title Size A3 Date:
A B C D
Document Number
AKD4254-A
LOGIC
Sheet
E
Rev
0 2
of
4
5
4
3
2
1
AVDD T45_R
AGND T45_BK
1
D
1
D
AVDD
AGND
AVDD JP5 AVDD(D-A)
C9 +
R12 AVDD_IN (short)
47u
C
C
L1 (short)
D3.3V_IN
D3.3V_IN
C11
C12
0.1u
B
0.1u
3
U3B 14 4 7 74LVC07
B
U2C
5
14 6 7 74HC14
5
U3C 14 6 7 74LVC07
U2D
9
14 8 7 74HC14
9
U3D 14 8 7 74LVC07
U2E
11
14 10 7 74HC14
11
U3E 14 10 7 74LVC07
U2F
A
13
14 12 7 74HC14
13
U3F 14 12 7 74LVC07
A
Title Size A3 Date:
5 4 3 2
Document Number
AKD4254-A
Sheet
Rev
POWER SUPPLY
1
3
of
4
0
5
4
3
2
1
R13 75 VVOUT1 R14 (open)
D
J1 VOUT1
1 2 3 4 5 2 3 4 5
C13 (open)
C14 (open)
R15 (open)
J3 VIN1
R23
1
C27 0.1u VVIN1
D
(short) R24 75
2 3 4 5
J4 VIN2
R25
1
C28 0.1u VVIN2
(short) R26 75
2 3 4 5
C
J5 VIN3
R27
1
C29 0.1u VVIN3
(short) R28 75
C
2 3 4 5
J6 VIN4
R29
1
C30 0.1u VVIN4
(short) R30 75
R18 75 VVOUT2 R19 (open) C20 (open) C21 (open)
J2 VOUT2
1 2 3 4 5
R20 (open)
2 3 4 5
J7 VIN5
R31
1
C31 0.1u VVIN5
(short) R32 75
B
B
2 3 4 5
J8 VIN6
R33
1
C32 0.1u VVIN6
(short) R34 75
2 3 4 5
A
J9 VIN7
R35
1
C33 0.1u VVIN7
(short) R36 75
A
Title Size A3 Date:
5 4 3 2
Document Number
AKD4254-A
Sheet
Rev
Video Block Input/Output Circuit
4
of
1
4
0

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