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AKD4708-A

AK4708 Evaluation Board Rev.0

ASAHI KASEI
AKD4708-A
AK4708 Evaluation Board Rev.0
GENERAL DESCRIPTION AKD4708 is an evaluation board for quickly evaluating the AK4708, AV SCART switch. Evaluation requires audio / video analog analyzers / generators and a power supply. Ordering guide
AKD4708-A -AK4708 Evaluation Board (Cable for connecting with printer port of IBM-AT, compatible PC and control software are packed with this.)
FUNCTION · BNC connectors for analog audio input / output · BNC connectors for analog video input / output · 10pin header for serial control interface
VP VD VVD AGND TVOUTL TVOUTR VCROUTL VCROUTR
TVINL TVINR VCRINL VCRINR AINL+ AINL (AINL+-) AINRAINR (AINR+-) VCRFB ENCB ENCC ENCG ENCV ENCY ENCRC
AK4708
TVFB TVSB VCRSB TVVOUT TVB TVG TVRC VCRVOUT
TVVIN VCRVIN VCRB VCRG VCRRC
VCRC VCRGO VCRBO VCRFBO
Figure 1. AKD4708 Block Diagram Circuit diagram and PCB layout are attached at the end of this manual.
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AKD4708-A
EVALUATION BOARD MANUAL Operation sequence
Jumper pins set up
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AKD4708-A
The function of the toggle SW
SW1 (PDN): Resets the AK4708. Keep "H" during normal operation.
The indication content for INT pin
Changes of the 08H status can be monitored via the TEST1 (INT). The INT pin is the open drain output and goes "L" for 2µs (typ.) when the status of 08H is changed.
Serial Control
The AK4708 can be controlled via the printer port (parallel port) of IBM-AT compatible PC. Connect PORT1 (CTRL) with PC by 10-line flat cable packed with the AKD4708-A. The control software packed with this evaluation board supports I2C control only.
Connect PC
SCL SDA ACK
AKD4708-A
10 wire flat cable
10pin Connector
10pin Header
Figure 2. Connect of 10-line flat cable
Analog Input / Output List
Signal Name J1 (TVINL), J4 (TVINR), J7 (VCRINL), J11 (VCRINR) J14 (AINL+, AINL-), J18 (AINR+, AINR-), J34 (AINL-), J35 (AINR-) J24 (TVOUTL), J27 (TVOUTR), J30 (VCROUTL), J32 (VCROUTR) J2 (ENCB), J5 (ENCC), J8 (ENCG), J12 (ENCV), J15 (ENCY) J17 (ENCRC), J3 (TVVIN), J6 (VCRVIN), J9 (VCRB) J13 (VCRG), J16 (VCRRC) J19 (TVVOUT), J20 (TVB), J23 (TVG), J26 (TVRC) J29 (VCRVOUT), Jxx (VCRC), Jxx (VCRGO), Jxx (VCRBO) J25 (VCRSB) J22 (TVSB), J25 (VCRSB) J10 (VCRFB) J28 (TVFB), Jxx (VCRFBO) Table 1. Analog Input / Output List Note Max. 2Vrms Max. 2Vrms Max. 2.15Vrms Max. 1.5Vpp Max. 3.0Vpp Max. VP+0.3V Max. VP Max. VVD1+0.3V Max. VVD2
Input Audio Output Input Video Output Slow Blanking Fast Blanking Input Output Input Output
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AKD4708-A
CONTROL SOFTWARE MANUAL Set-up of evaluation board and control software
1. Set up the AKD4708-A according to previous term. 2. Connect IBM-AT compatible PC with AKD4708-A by 10-line type flat cable (packed with AKD4708-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 "AK4708 Evaluation Kit" into the CD-ROM drive. 4. Access the CD-ROM drive and double-click the icon of "akd4708-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. 3. Click "Write default" button
Explanation of each buttons
1. Port Reset: 2. Write default: 3. All Write: 4. Function1: 5. Function2: 6. Function3: 7. Function4: 8. Function5: 9. SAVE: 10. OPEN: 11. Write: Set up the USB interface board (AKDUSBIF-A) when using the board. Initialize the register of AK4708. Write all registers that is currently displayed. Dialog to write data by keyboard operation. 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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AKD4708-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". If you want to write the input data to the AK4708, click OK button. If not, click Cancel button.
2. Function1 Dialog : Dialog to write data by keyboard operation
Address Box: Data Box: Input registers address in 2 figures of hexadecimal. Input registers data in 2 figures of hexadecimal.
If you want to write the input data to the AK4708, click OK button. If not, click Cancel button.
3. Function2 Dialog : Dialog to evaluate DATT
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AKD4708-A
4. SAVE and OPEN
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AKD4708-A
5. Function3 Dialog
The sequence of register setting can be set and executed.
(1) Click F3 Button. The following is displayed.
Figure 1. Window of F3
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AKD4708-A
6. Function4 Dialog
The sequence file (.aks) saved by Function3 can be listed up to 10 files, assigned to buttons and then executed. When F4 button is clicked, the window as shown in Figure 2 opens.
Figure 2. F4 window
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AKD4708-A
Figure 3. F4 window(2) (2) Click START button, then the sequence is executed.
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AKD4708-A
7. Function5 Dialog
The register setting file(.akr) saved by SAVE function on main window can be listed up to 10 files, assigned to buttons and then executed. When F5 button is clicked, the window as shown in Figure 4 opens.
Figure 4. F5 window
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AKD4708-A
7-1. OPEN buttons on left side and WRITE button
Figure 5. F5 windows(2) 7-2. SAVE and OPEN buttons on right side SAVE : The name assign of register setting file displayed on Function5 window can be saved to the file. The file name is ".ak5". OPEN : The name assign of register setting file(.ak5) saved by SAVE is loaded. 7-3. Note (1) All files used by SAVE and OPEN function on right side need to be in the same folder. (2) When the register setting is changed by SAVE Button on the main window, the register setting file (.akr) should be loaded again in order to reflect the change.
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AKD4708-A
MEASUREMENT RESULTS Audio
Plots
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AKD4708-A
Video
Plots
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AKD4708-A
Plots (Audio)
+0 -10 -20 -30 -40 -50 -60 -70 d B r A -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200 500 Hz 1k 2k 5k 10k 20k
AK4708 AINL / AINR
+0 -10 -20 -30 -40 -50 -60 -70 d B r A -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200 500 Hz 1k 2k 5k 10k 20k
AK4708 AINL / AINR
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AKD4708-A
+0 -10 -20 -30 -40 -50 -60 -70 d B r A -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 20 50
AK4708 AINL / AINR
TVOUTL / TVOUTR: FFT: No-input
500 Hz
Figure1-3. FFT (Noise Floor)
-90 -90.5 -91 -91.5 -92 -92.5 -93 -93.5 -94 d B r A -94.5 -95 -95.5 -96 -96.5 -97 -97.5 -98 -98.5 -99 -99.5 -100 -140 -130 -120 -110 -100 -90 -80 -70 dBr -60 -50 -40 -30 -20 -10 +0
AK4708 AINL / AINR
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AKD4708-A
AK4708 AINL / AINR
-90.5 -91 -91.5 -92 -92.5 -93 -93.5 -94 d B r A -94.5 -95 -95.5 -96 -96.5 -97 -97.5 -98 -98.5 -99 -99.5 -100 20 50 100 200 500 Hz 1k 2k 5k 10k 20k
AK4708 AINL / AINR
-70 dBr
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AKD4708-A
+1 +0.9 +0.8 +0.7 +0.6 +0.5 +0.4 +0.3 +0.2 d B r A +0.1 +0 -0.1 -0.2 -0.3 -0.4 -0.5 -0.6 -0.7 -0.8 -0.9 -1
AK4708 AINL / AINR
10k Hz
-70 -75 -80 -85 -90 -95 d B -100 -105 -110 -115 -120 -125
AK4708 AINL / AINR
500 Hz
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AKD4708-A
Plots(Video)
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AKD4708-A
AK4708 ENCV
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AKD4708-A
AK4708 ENCV
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AKD4708-A
Revision History
Date (YY / MM / DD) 06 / 09 / 30 07 / 01 / 09 Manual Revision KM085100 KM085101 Board Reason Revision First Edition 0 0 Add Measurement Results Contents
Add Table Data, Plot Data
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.
VCC VCC U2 R13 10k R14 470
VCC R16 1.8K
74LS07
PORT1 A1-10PA-2.54DSA
C24 0.1u
SCL SDA ACK
74HCT157
VCRVOUT
CTRL VCC
VCRFBO
VCRGO
VCRBO
AINR+
AINL+
D1 HSU119
R15 10k
H SW1 PDN
74HCT14
AINR-
AINL-
C19 0.1u
C3 0.1u
+ C4 10u CN3 + C6 10u
VCRFBO
VCRGO
VCRBO
AINL-
VCRVOUT
AINL+
AINR+
AINR-
C5 0.1u
C1 0.1u
U3C C10+ 10u
TVVOUT
PVCOM
74LS07
74HCT14 VVD2
C9 0.1u
DVCOM
C7 0.1u
74LS07
74HCT14
U1 AK4708
TVOUTL
TVOUTR
74LS07
74HCT14 ENCB
9 9 ENCB VCROUTR 28 28
C12+ 10u
C11 0.1u
VCROUTL
VCROUTR
TVINL
74LS07
74HCT14
ENCRC
TVINR
TVINR VCRINL
ENCC VCRINR VCRVIN VCRRC VCRSB VCRFB TVVIN VCRG ENCV ENCY VCRB TVSB
VCRINL
74LS07
VCRVIN
VCRINR
VCRRC
VCRSB
VCRFB
TVVIN
Title Size Document Number
Date:
Wednesday, August 23, 2006
AKD4708-A AK4708 Logic 1
Sheet
Video Intput
J12 ENCV
Video Output
R39 75 ENCV TVVOUT J19 TVVOUT
Audio Intput
J7 C36 VCRINL 0.47u + R25 300 VCRINL TVOUTL
Audio Output
C50 10u + R45 300 J24 TVOUTL
C40 0.1u R30 75
R46 10k
J15 ENCY
C43 0.1u ENCY R33 75 TVRC
R48 75
J26 TVRC
J11 C39 VCRINR 0.47u
R29 300 VCRINR TVOUTR
C51 10u +
R49 300
J27 TVOUTR
R50 10k
J17 ENCRC
C46 0.1u ENCRC R36 75 TVG
R44 75
J23 TVG
J1 TVINL
C30 0.47u +
R19 300 TVINL VCROUTL
C52 10u +
R53 300
J30 VCROUTL
R54 10k
J5 ENCC
C34 0.1u ENCC R23 75 TVB
R40 75
J20 TVB
J4 TVINR
C33 0.47u +
R22 300 TVINR VCROUTR
C53 10u +
R56 300
J32 VCROUTR
R57 10k
J8 ENCG
C37 0.1u ENCG R26 75 VCRVOUT
R52 75
J29 VCRVOUT
J34 AINL+
C45 0.47u + J14 AINL
R35 300 AINL+
Blanking Output
R51 75 TVFB J28 TVFB
J2 ENCB
C31 0.1u ENCB R21 75 VCRC VCRCOUT
R59 75
J36 VCRCOUT
C42 0.47u +
R32 300 AINL-
JP10 GND
R43 300 TVSB
J22 TVSB
J3 TVVIN
C32 0.1u TVVIN R20 75 VCRGO VCRGOUT
R60 75
J37 VCRGOUT
R47 300 J35 AINR+ J6 VCRVIN
J25 VCRSB
C48 0.47u + J18 AINR
R38 300 AINR+
VCRSB
C35 0.1u VCRVIN R24 75 VCRBO VCRBOUT
R61 75
J38 VCRBOUT
R62 75 C47 0.47u + R37 300 AINRVCRFBO VCRFBOUT
J39 VCRFBOUT
VCRCOUT
J16 VCRRC
JP6 VCRRC I / O I R34 75
R101 (Short)
C44 0.1u VCRRC
JP11 GND
R17 10k
R18 300
TEST43 INT
Blanking Input
VCRGOUT J13 VCRG
R102 (Short)
C41 0.1u VCRG
VCRFBOUT J10 VCRFB VCRBOUT
JP9 VCRFB I / O I R28 75
R104 (Short) VCRFB
J9 VCRB
R103 (Short)
C38 0.1u VCRB
Title Size
Date:
AKD4708-A Audio Video Input Output Wednesday, August 23, 2006 2 3
Document Number Sheet of
L4 (short)
T1 NJM78M05FA
GND IN OUT 3
JP2 VD C22 + 0.1u
L1 (short)
C27 47u
C20 + 0.1u
C21 47u
C28 47u
+ VCC VCC C23 47u + C25 0.1u C26 0.1u
L5 (short)
JP4 VCC
for for 74HC14 74LS07 VVD
JP3 VVD VP
L2 (short)
C29 47u
L3 (short)
JP1 GND
Title Size Document Number
Date:
AKD4708-A Power Supply
Sheet
Rev of
Wednesday, August 23, 2006