[AKD4420-SC] AKD4420-SC AK4420 Evaluation Board Rev.2 General Description AKD4420-SC is an evaluation board for AK4420 (192kHz sampling 24Bit StereoΔΣDAC with 2Vrms Output). AKD4420-SC has a digital audio interface (AK4115) of Optical input and can easily achieve the interface with digital audio system. Therefore, it is easy to evaluate the sound quality of AK4420. Ordering Guide AKD4420-SC ---- AK4420 Evaluation Board Function □ On-board digital audio interface. (AK4115) REG:12V->3.3V VCC:3.3V REG:12V->5V VDD:5V CVDD:5V BNC Connector Lch COAX In AK4115 AK4420 Opt In TORX141 BNC Connector Rch DIR Port2 External Figure 1. AKD4420-SC Block diagram (* Circuit diagram are attached at the end of this manual.) KM091904 - 1 - 2009/07 [AKD4420-SC] Board Outline Chart Outline Chart PORT1 CVDD COAX AGND VDD VCC REG U3 SW2 T2 T1 U2 H LOUT 1 SW1 1 L U1 TEST1 PORT2 ROUT 1 10 Figure 2. AKD4420-SC Outline Chart Comment (1) LOUT, ROUT (BNC-JACK) It is analog signal output Jack. The signal is output from LOUT/ROUT pins. (2) COAX, PORT1, PORT2 (Digital signal connector) COAX (BNC-JACK): Digital signal (SPDIF, Fs: 24∼48kHz) is input to the AK4115. (Default) PORT1 (Optical Connecter): Optical digital signal (SPDIF, Fs: 32∼48kHz) is input to the AK4115. PORT2 (10 pin header): The clock and data can be input and output with this connector. (3) REG, VDD, AGND, CVDD, VCC These are the power supply connectors. Connect power supply with these pins. As for the detail comments, refer to the setup of power supply in P3. (4) SW1, SW2 (Switch) SW1: Setting of frequency of MCKO that is output from AK4115. SW2: Reset of AK4115. Keep “H” during normal operation. KM091904 - 2 - 2009/07 [AKD4420-SC] Operation sequence 1) Set up the power supply lines. Each supply line should be distributed from the power supply unit. Name of jack VCC1 (Note 1) Color of jack Red Typ Voltage +12V Voltage Range +7∼+15V VDD1 Red +5V CVDD1 Red AGND2 REG (Note 2) Using Default Setting Connected to +12V +4.5∼+5.5V AVDD, DVDD, TVDD, OVDD of AK4115 and VCC of Logic circuit (Regulator:T2) VDD of AK4420 +5V +4.5∼+5.5V CVDD of AK4420 Connected to +5V Black 0V 0V Ground Connected to GND (Should be connected) Red +12V +7V~+15V VDD, CVDD of AK4420 (Regulator:T1) Open Connected to +5V Table 1.Set up of power supply lines Note 1 ) In case of using +3.3V power supply to connect VCC1, It is possible to supply the voltage to AK4115 and the Logic circuit without using Regulator. In this case, change to R36: OpenÆ Short (0Ω); R34,R35: Short (0Ω) Æ Open Note 2 ) In case of using +12V power supply to connect REG, Use regulator: T1 can supply AK4420 with clean voltage. In this case, change to R25,R44: Short (0Ω)Æ Open; R37,R43:OpenÆ Short (0Ω); VDD, CVDD should be open. 2) DIP Switch setting: Refer to Table 2 and Table 3 3) Power Down: The AK4115 should be reset once by bringing SW2 (AK4115 PDN) “L” upon power-up. Evaluation mode 1. Using DIR (Optical Link) The DIR generates MCLK, BICK, LRCK and SDATA from the received data through optical connector (PORT1: TORX141). It is possible to evaluate the AK4420 by using CD disk. Setting: R19: Open Æ470Ω; R33: short (0Ω)ÆOpen 2. Using DIR (COAX) (Default) The DIR generates MCLK, BICK, LRCK and SDATA from the received data through BNC connector (J3). It is possible to evaluate the AK4420 by using CD disk. Setting: R19: Open; R33: short (0Ω); (Default) ＊ COAX is recommended for an evaluation of the Sound quality. 3. Supply all interface signals that includ master clock via PORT2 from external equipments.. Setting: R11: 5.1ΩÆOpen R12, R13, R14: 51ΩÆOpen R15, R16, R17, R18: OpenÆ51Ω or short (0Ω) Note) The above work of removing (open) or shorting resistors need to modify the connection by soldering. KM091904 - 3 - 2009/07 [AKD4420-SC] Setting of DIP switch [SW1]: AK4115 setting No. Pin 1 2 OCKS0 OCKS1 OCKS1 0 1 1 OCKS0 0/1 0 1 OFF (“L”) ON (“H”) AK4115’s Master Clock setting Look Table 3 Table 2. SW1 setting MCLK Frequency 256fs @ fs=96kHz 512fs @ fs=48kHz 128fs @ fs=192kHz Default の状態 OFF ON Default Table 3. MCLK clock setting Setting of SW2 switch [SW2](PDN): Reset of AK4115. Keep “H” during normal operation. KM091904 - 4 - 2009/07 [AKD4420-SC] Measurement Results [Measurement condition] • Measurement unit • MCLK • BICK • fs • Bit • Power Supply • Interface • Temperature : Audio Precision System two Cascade (AP2) : 512fs, 256fs, 128fs : 64fs : 44.1kHz, 96kHz, 192kHz : 24bit : VDD=CVDD=5V : DIR : Room Table Data fs=44.1kHz Parameter S/(N+D) DR S/N Input signal 1kHz, 0dB 1kHz, -60dB “0” data Measurement filter 20kLPF 20kLPF, A-weighted 20kLPF, A-weighted fs=96kHz Parameter S/(N+D) DR S/N Input signal 1kHz, 0dB 1kHz, -60dB “0” data Measurement filter 40kLPF 40kLPF, A-weighted 40kLPF, A-weighted fs=192kHz Parameter S/(N+D) DR S/N Input signal 1kHz, 0dB 1kHz, -60dB “0” data Measurement filter 40kLPF 40kLPF, A-weighted 40kLPF, A-weighted KM091904 - 5 - Lch 92.3 105.1 106.0 Lch 92.2 105.7 105.9 Lch 93.0 105.2 105.4 Rch 92.3 105.1 105.7 Rch 92.2 105.3 105.7 Rch 92.8 105.1 105.3 2009/07 [AKD4420-SC] Plot Data (fs=44.1kHz) AKM AK4420 FFT VDD=CVDD=5V, MCLK=512fs, fs=44.1kHz, 0dBFS Input +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 1k 2k 5k 10k 20k 5k 10k 20k Hz Figure 2. FFT (0dB) AKM AK4420 FFT VDD=CVDD=5V, MCLK=512fs, fs=44.1kHz, -60dBFS Input +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 1k 2k Hz Figure 3. FFT (-60dB) KM091904 - 6 - 2009/07 [AKD4420-SC] AKM AK4420 FFT VDD=CVDD=5V, MCLK=512fs, fs=44.1kHz, No signal Input +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 1k 2k 5k 10k 20k 20k 50k 100k Hz Figure 4. FFT (No Signal) AKM AK4420 FFT Out of Band Noise VDD=CVDD=5V, MCLK=512fs, fs=44.1kHz, No signal Input +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 1k 2k 5k 10k Hz Figure 5. FFT (Out of Band Noise) KM091904 - 7 - 2009/07 [AKD4420-SC] AKM AK4420 S/(N+D) vs. Input Level VDD=CVDD=5V, MCLK=512fs, fs=44.1kHz, fin=1kHz -80 -82 -84 -86 -88 -90 -92 -94 -96 d B r A -98 -100 -102 -104 -106 -108 -110 -112 -114 -116 -118 -120 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 +0 dBFS Figure 6. S/(N+D) vs. Input Level AKM AK4420 S/(N+D) vs. Input Frequency VDD=CVDD=5V, MCLK=512fs, fs=44.1kHz, 0dBFS Input -80 -82 -84 -86 -88 -90 -92 -94 -96 d B r A -98 -100 -102 -104 -106 -108 -110 -112 -114 -116 -118 -120 20 50 100 200 500 1k 2k 5k 10k 20k Hz Figure 7. S/(N+D) vs. Input Frequency KM091904 - 8 - 2009/07 [AKD4420-SC] AKM AK4420 Linearity VDD=CVDD=5V, MCLK=512fs, fs=44.1kHz, fin=1kHz +0 -10 -20 -30 -40 -50 d B r -60 -70 A -80 -90 -100 -110 -120 -130 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 +0 dBFS Figure 8. Linearity AKM AK4420 Frequency Response VDD=CVDD=5V, MCLK=512fs, fs=44.1kHz, 0dBFS Input +1 +0.8 +0.6 +0.4 +0.2 +0 -0.2 d B r -0.4 -0.6 A -0.8 -1 -1.2 -1.4 -1.6 -1.8 -2 2k 4k 6k 8k 10k 12k 14k 16k 18k 20k Hz Figure 9. Frequency Response KM091904 - 9 - 2009/07 [AKD4420-SC] AKM AK4420 Crosstalk VDD=CVDD=5V, MCLK=512fs, fs=44.1kHz, 0dBFS Input -80 -85 -90 -95 -100 d B -105 -110 -115 -120 -125 -130 20 50 100 200 500 1k 2k 5k 10k 20k Hz Figure 10. Crosstalk KM091904 - 10 - 2009/07 [AKD4420-SC] (fs=96kHz) AKM AK4420 FFT VDD=CVDD=5V, MCLK=256fs, fs=96kHz, 0dBFS Input +0 -10 -20 -30 -40 -50 -60 -70 d B r A -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 40 50 100 200 500 1k 2k 5k 10k 20k 40k 10k 20k 40k Hz Figure 11. FFT (0dB) AKM AK4420 FFT VDD=CVDD=5V, MCLK=256fs, fs=96kHz, -60dBFS Input +0 -10 -20 -30 -40 -50 -60 -70 d B r A -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 40 50 100 200 500 1k 2k 5k Hz Figure 12. FFT (-60dB) KM091904 - 11 - 2009/07 [AKD4420-SC] AKM AK4420 FFT VDD=CVDD=5V, MCLK=256fs, fs=96kHz, No signal Input +0 -10 -20 -30 -40 -50 -60 -70 d B r A -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 40 50 100 200 500 1k 2k 5k 10k 20k 40k 50k 100k Hz Figure 13. FFT (No Signal) AKM AK4420 FFT Out of Band Noise VDD=CVDD=5V, MCLK=256fs, fs=96kHz, No signal Input +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 1k 2k 5k 10k 20k Hz Figure 14. FFT (Out of Band Noise) KM091904 - 12 - 2009/07 [AKD4420-SC] AKM AK4420 S/(N+D) vs. Input Level VDD=CVDD=5V, MCLK=256fs, fs=96kHz, fin=1kHz -80 -82 -84 -86 -88 -90 -92 -94 -96 d B r A -98 -100 -102 -104 -106 -108 -110 -112 -114 -116 -118 -120 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 +0 dBFS Figure 15. S/(N+D) vs. Input Level AKM AK4420 S/(N+D) vs. Input Frequency VDD=CVDD=5V, MCLK=256fs, fs=96kHz, 0dBFS Input -80 -82 -84 -86 -88 -90 -92 -94 -96 d B r A -98 -100 -102 -104 -106 -108 -110 -112 -114 -116 -118 -120 40 50 100 200 500 1k 2k 5k 10k 20k 40k Hz Figure 16. S/(N+D) vs. Input Frequency KM091904 - 13 - 2009/07 [AKD4420-SC] AKM AK4420 Linearity VDD=CVDD=5V, MCLK=256fs, fs=96kHz, fin=1kHz +0 -10 -20 -30 -40 -50 d B r -60 -70 A -80 -90 -100 -110 -120 -130 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 +0 dBFS Figure 17. Linearity AKM AK4420 Frequency Response VDD=CVDD=5V, MCLK=256fs, fs=96kHz, 0dBFS Input +1 +0.8 +0.6 +0.4 +0.2 +0 -0.2 d B r -0.4 -0.6 A -0.8 -1 -1.2 -1.4 -1.6 -1.8 -2 2.5k 5k 7.5k 10k 12.5k 15k 17.5k 20k 22.5k 25k 27.5k 30k 32.5k 35k 37.5k 40k Hz Figure 18. Frequency Response KM091904 - 14 - 2009/07 [AKD4420-SC] AKM AK4420 Crosstalk VDD=CVDD=5V, MCLK=256fs, fs=96kHz, 0dBFS Input -80 -85 -90 -95 -100 d B -105 -110 -115 -120 -125 -130 40 50 100 200 500 1k 2k 5k 10k 20k 40k Hz Figure 19. Crosstalk KM091904 - 15 - 2009/07 [AKD4420-SC] (fs=192kHz) AKM AK4420 FFT VDD=CVDD=5V, MCLK=128fs, fs=192kHz, 0dBFS Input +0 -10 -20 -30 -40 -50 -60 -70 d B r A -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 90 200 500 1k 2k 5k 10k 20k 50k 80k 20k 50k 80k Hz Figure 20. FFT (0dB) AKM AK4420 FFT VDD=CVDD=5V, MCLK=128fs, fs=192kHz, -60dBFS Input +0 -10 -20 -30 -40 -50 -60 -70 d B r A -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 90 200 500 1k 2k 5k 10k Hz Figure 21. FFT (-60dB) KM091904 - 16 - 2009/07 [AKD4420-SC] AKM AK4420 FFT VDD=CVDD=5V, MCLK=128fs, fs=192kHz, No signal Input +0 -10 -20 -30 -40 -50 -60 -70 d B r A -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 90 200 500 1k 2k 5k 10k 20k 50k 80k Hz Figure 22. FFT (No Signal) AKM AK4420 FFT Out of Band Noise VDD=CVDD=5V, MCLK=128fs, fs=192kHz, No signal Input +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 1k 2k 5k 10k 20k 50k 100k Hz Figure 23. FFT (Out of Band Noise) KM091904 - 17 - 2009/07 [AKD4420-SC] AKM AK4420 S/(N+D) vs. Input Level VDD=CVDD=5V, MCLK=128fs, fs=192kHz, fin=1kHz -80 -82 -84 -86 -88 -90 -92 -94 -96 d B r A -98 -100 -102 -104 -106 -108 -110 -112 -114 -116 -118 -120 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 +0 dBFS Figure 24. S/(N+D) vs. Input Level AKM AK4420 S/(N+D) vs. Input Frequency VDD=CVDD=5V, MCLK=128fs, fs=192kHz, 0dBFS Input -80 -82 -84 -86 -88 -90 -92 -94 -96 d B r A -98 -100 -102 -104 -106 -108 -110 -112 -114 -116 -118 -120 90 200 500 1k 2k 5k 10k 20k 50k 80k Hz Figure 25. S/(N+D) vs. Input Frequency KM091904 - 18 - 2009/07 [AKD4420-SC] AKM AK4420 Linearity VDD=CVDD=5V, MCLK=128fs, fs=192kHz, fin=1kHz +0 -10 -20 -30 -40 -50 d B r -60 -70 A -80 -90 -100 -110 -120 -130 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 +0 dBFS Figure 26. Linearity AKM AK4420 Frequency Response VDD=CVDD=5V, MCLK=128fs, fs=192kHz, 0dBFS Input +1 +0.8 +0.6 +0.4 +0.2 +0 -0.2 d B r -0.4 -0.6 A -0.8 -1 -1.2 -1.4 -1.6 -1.8 -2 5k 10k 15k 20k 25k 30k 35k 40k 45k 50k 55k 60k 65k 70k 75k 80k Hz Figure 27. Frequency Response KM091904 - 19 - 2009/07 [AKD4420-SC] AKM AK4420 Crosstalk VDD=CVDD=5V, MCLK=128fs, fs=192kHz, 0dBFS Input -80 -85 -90 -95 -100 d B -105 -110 -115 -120 -125 -130 90 200 500 1k 2k 5k 10k 20k 50k 80k Hz Figure 28. Crosstalk KM091904 - 20 - 2009/07 [AKD4420-SC] REVISION HISTORY Date Manual (yy/mm/dd) Revision 08/01/15 KM091900 08/02/25 KM091901 Board Revision 0 1 Reason Page Contents First Edition Change 12 Circuit diagram was changed. : Regulator: T2: TA48033FÆuPC3533HF Figure 1. Block diagram was replaced. Table 1. Set up of power supply lines was replaced. Set up of power supply lines and setting of evaluation mode: error correction Table 1. Set up of power supply lines:Explanation changed. Note 1, Note 2: Explanation changed. Circuit diagram was changed. : R34,R35: open Æ short R36: short Æ open Circuit diagram was changed. : SW1: DSS102 Æ A6E-2104 Update of measurement results and Plots. 1 3 Correction 08/08/22 KM091902 2 Change 3 12 09/04/17 KM091903 2 Change 12 09/07/09 KM091904 2 Modification 5-20 IMPORTANT NOTICE z These products and their specifications are subject to change without notice. When you consider any use or application of these products, please make inquiries the sales office of Asahi Kasei Microdevices Corporation (AKM) or authorized distributors as to current status of the products. z AKM assumes no liability for infringement of any patent, intellectual property, or other rights in the application or use of any information contained herein. z 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. z AKM products are neither intended nor authorized for use as critical componentsNote1) in any safety, life support, or other hazard related device or systemNote2), and AKM assumes no responsibility for such use, except for the use approved with the express written consent by Representative Director of AKM. As used here: Note1) 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. Note2) 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. z It is the responsibility of the buyer or distributor of AKM products, who distributes, disposes of, or otherwise places the product with a third party, to notify such third 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. KM091904 - 21 - 2009/07 A B C VCC_R VCC_R D E VCC_R C24 10u R45 + E 1 R7 VDD VDD 17 B 34 ELRCK SDTO 51 MCLK BICK 5 MCLK BICK C14 15 51 2 1 37 OVSS CM0/CDTO/CAD1 OVDD R27 10u (open) R40 CVDD TEST1 10 BICK VSS1 12 SDTI VDD 11 U1 AK4420 DZF J1 VSS1 C5 C6 R28 C15 0.1u 10u (open) (open) R3 VDD VDD 560 R14 51 7 LRCK AOUTL 10 8 DIF AOUTR 9 AOUTL C7 13 12 DIF R15 R16 R17 R18 (open) (open) (open) (open) OCKS1 R24 47k 47k (short) 38 CM1/CDTI/SDA MCKO2 11 39 OCKS1/CCLK/SCL MCKO1 10 VCC_R + U2 OCKS0/CSN/CAD0 41 DVDD 42 DVSS DVSS 9 DAUX 8 VIN 7 6 7 8 9 10 5 4 3 2 1 AOUTR C8 2.2nF (open) R4 R6 (short) AGND VCC_R DVDD (short) BNC-R-PC 2ROUT 3 4 5 R2 C10 C12 (open) 2.2nF (open) (short) R9 BVSS D J2 1 A1-10PA-2.54DSA DSP VDD VDD C20 0.1u 43 3 4 5 (open) 560 C32 0.1u C33 10u BNC-R-PC 2LOUT C11 (short) SDTO LRCK BICK MCLK R10 AK4115 1 C9 PORT2 40 R23 R5 R1 4 L OCKS0 3 D INT1 13 (open) LRCK 36 SW1 A6E-2104 CVDD 14 TEST3 H C4 14 CVDD DZF (open) STDI INT0 SMUTE 4 6 35 (open) C3 5.1 C13 R13 VSS2 0.1u 3 SMUTE 5.1 TEST2 1u 15 VSS2 (short) 16 R12 R41 + LRCK CP C2 + 18 19 U C 20 21 TVDD TX0 VOUT 22 23 TXP1 TXN1 25 24 27 26 XTI1 TVSS XTI2 XTO1 28 29 OVDD XTO2 30 31 32 OVSS EBICK R11 EMCK R22 AGND VEE + 33 C21 0.1u 16 VEE 1u 2 R8 CN C1 (open) + C23 0.1u VCC_R (open) C22 0.1u + E R42 (open) (open) R39 6 VCC 5.1 VCC_R C 44 IPS1/IIC 45 PSEL XSEL/RX7 5 PDN 4 VCC1 R20 46 XTL0 DIF1/RX6 3 47 XTL1 TEST 2 (short) 1 L4 1 R36 (short) C 2 VCC (open) T45-RED C37 0.1u (short) 1 R34 +12V IPS0/RX4 1 C36 (short) + 47u IN C41 2 0.1u OUT +3.3V 3 + C45 0.1u C17 47u 64 AVDD RX3 62 63 AVSS RX2 60 61 AVDD 59 RX1 AVSS 58 57 RXN0 RXP0 56 55 P/SN ACKS 54 53 AVDD 52 51 50 49 R VCOM DIF0/RX5 AVSS FILT T2 +12V-->+3.3V uPC3533HF GND 48 R35 (short) R21 C27 0.1u C30 4.7u C25 0.1u + T1 +12V-->+5V NJM78M05FA +12V T45-RED C29 0.1u 1 1 IN C40 + 470u C39 AGND2 T_45(BLACK) 3 OUT +5V B C42 2 + C38 0.1u 0.1u 47u 1 (open) REG(+12/5V) 1 VCC_R 2 R30 1 (open) B VCC_R C26 10u GND + R29 2 R31 10k + AGND C28 10u R37 R38 VCC VDD1 (short) L2 1 1 R25 (short) 2 VDD T45-RED VCC (open) C35 470u + (short) C34 0.1u K 1 VCC L1 A 47u R26 D1 HSU119 R43 10k U3 2 PORT1 2 1 TORX141 C18 0.1u + C19 10u R19 H L (open) SW2 C31 J3 C16 0.1u COAX BNC-R-PC R33 0 0.1u VCC 1A 2A 3A 4A 5A 6A VCC GND 1Y 2Y 3Y 4Y 5Y 6Y CVDD1 2 4 6 8 10 12 L3 1 1 R44 (short) 2 C44 470u + (open) CVDD T45-RED (short) C43 0.1u A 2 ATE1D-2M3 A 1 3 5 9 11 13 14 7 1 GND OUT 3 VCC 3 AK4115-PDN 74HC14 C48 0.1u R32 75 Title AK4420-SC AK4420 Size Document Number Custom Date: A B C D Thursday, July 09, 2009 E Sheet Rev 2 1 of 1