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| ASAHI KASEI [AKD4250-A] AKD4250-A Evaluation Board Rev.2 for AK4250 General Description AKD4250-A is an evaluation board for quickly evaluating the AK4250VU, 1ch video amplifier with low pass filter (LPF). Ordering Guide AKD4250-A --Evaluation Board for AK4250 Function * Easy to evaluate AK4250VU VDD1 VSS1 VIN AK4250VU VOUT Figure 1. AKD4250-A Block diagram * Circuit diagram and PCB layout are attached at the end of this manual. 2006/08 ASAHI KASEI [AKD4250-A] Operation sequence 1) Set up the power supply lines. [VDD1] (Red) = 2.5V~3.6V [VSS1] (Black) = 0V 2) Set up the jumper pins. (Refer the next section.) They should be set a default state. 3) Turn on the power supply. AK4250VU includes a power-on-reset function. Therefore any reset is not required upon power-up externally. Jumper pins set up Jumper pins should be set the default state. 1) JP1(DVDD) : DVDD and AVDD OPEN : Separated. SHORT: Connected. 2006/08 ASAHI KASEI [AKD4250-A] Analog Input/Output Circuits (1) Input Circuit J1 C7 2 3 1 MR-552LS VIN R2 75 0.1u VIN Figure 2. VIN input circuit (2) Output Circuit J2 R4 75 VOUT R3 100k 2 3 1 VOUT MR-552LS Figure 3. VOUT output circuit 2006/08 ASAHI KASEI [AKD4250-A] MEASUREMENT RESULTS 1. VIDEO PLOT DATA [Measurement condition] * Measurement unit: Tektronix VM700T Video Measurement set * Power Supply: VDD=3V * Temperature: Room 1-1. S/N * Measurement Frequency: 100kH 6MHz Figure 4. S/N (Noise Spectrum) 2006/08 ASAHI KASEI [AKD4250-A] 1-2. Vector * Input signal: 75% color Figure 5. 75% Color Vector 2006/08 ASAHI KASEI [AKD4250-A] Revision History Date (yy/mm/dd) 06/07/11 06/08/01 Manual Revision KM083302 KM083303 Board Revision 1 2 Reason First Edition Device Rev. changed Measurement data changed AK4250:(Rev.B Rev.D) Measurement data changed. (Video Plot Data : S/N and Vector) 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. 2006/08 5 4 3 2 1 VDD1 T45_R CN1 VSS1 T45_BK AVDD D C2 L1 2 2 CN2 1 1 D 1 C1 47u 1 1 + 2 (short) DVDD C6 DVDD R1 75 0.1u 2 3 4 C J2 VIN 2 3 1 MR-552LS 8pin_1 B A 5 4 + JP1 1 C3 C4 U1 0.1u 1 2 3 4 1u CP CN VDD VEE VIN VSS PDN VOUT AK4250 8 7 6 5 C5 1u 8 10u AVDD VSS 7 6 5 J1 R2 8pin_2 R3 100k C 75 2 3 1 VOUT MR-552LS DVDD DVDD JP2 PDN B OPEN A Title AKD4250-A Size A Date: 3 Document Number AK4250VU Wednesday, February 15, 2006 2 Rev 1 of 1 |
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