Datasheet AD9288 (Analog Devices) - 19

AD9288
00585-027
GND DRA GND D9P D8P D7P D6P D5P D4P D3P D2P D1P D0P GND GND GND GND GND GND GND GND DRB GND D9Q D8Q D7Q D6Q D5Q D4Q D3Q D2Q D1Q D0Q GND GND GND GND GND GND GND 39 37 35 33 31 29 27 25 23 21 19 17 15 13 11 9 7 5 3 1 39 37 35 33 31 29 27 25 23 21 19 17 15 13 11 9 7 5 3 1 9 7 5 3 1 9 7 5 3 1 39 37 35 33 31 29 27 25 23 21 19 17 15 13 11 39 37 35 33 31 29 27 25 23 21 19 17 15 13 11 P3 P2 HEADER40 HEADER40 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 GND GND D9P D8P D7P D6P D5P D4P D3P D2P D1P D0P D0Q D1Q D2Q D3Q D4Q D5Q D6Q D7Q D8Q D9Q 20 19 18 17 16 15 14 13 12 11 20 19 18 17 16 15 14 13 12 11 20 19 18 17 16 15 14 13 12 11 20 19 18 17 16 15 14 13 12 11 50 50 U9 U10 CTS20 CTS20 VALUE = VALUE = 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 D9X D8X D7X D6X D5X D4X D3X D2X D1X D0X D0Y D1Y D2Y D3Y D4Y D5Y D6Y D7Y D8Y D9Y
µ
F
µ
F VDL D9X D8X D7X D6X D5X D4X D3X D2X D1X D0X CLKLATA VDL D0Y D1Y D2Y D3Y D4Y D5Y D6Y D7Y D8Y D9Y CLKLATB C21 0.1 C20 0.1 GND GND 24 23 22 21 20 19 18 17 16 15 14 13 24 23 22 21 20 19 18 17 16 15 14 13 K K Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7 Y8 Y9 L Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7 Y8 Y9 L VCC C VCC C U2 U3 74LCX821 74LCX821 OE X0 X1 X2 X3 X4 X5 X6 X7 X8 X9 GND OE X0 X1 X2 X3 X4 X5 X6 X7 X8 X9 GND 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 GND D9M D8M D7M D6M D5M D4M D3M D2M D1M D0M GND GND D0N D1N D2N D3N D4N D5N D6N D7N D8N D9N GND D9M D8M D7M D6M D5M D4M D3M D2M D1M D0M D0N D1N D2N D3N D4N D5N D6N D7N D8N D9N 20 19 18 17 16 15 14 13 12 11 20 19 18 17 16 15 14 13 12 11 20 19 18 17 16 15 14 13 12 11 20 19 18 17 16 15 14 13 12 11 50 50 U7 U8 CTS20 CTS20 VALUE = VALUE = 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 D9A D8A D7A D6A D5A D4A D3A D2A D1A D0A D0B D1B D2B D3B D4B D5B D6B D7B D8B D9B
Ω Ω
R18 500 R26 500
Ω Ω Ω Ω
R19 4k R21 1k R27 4k R28 1k V V +5 GND V +5 GND V
Ω Ω
+5
µ
F +5
µ
F R16 525 C32 0.1 R25 525 C35 0.1
Ω Ω
GND R22 50 GND GND R30 50 AMPINA 1 2 3 4 1 2 3 4 U11 AMPOUTA U12 T T AMPOUTBB –IN V+ U –IN V+ U VOCM +O VOCM +O C2 15pF C36 15pF AD8138 AD8138 +IN NC V– –OUT +IN NC V– –OUT 8 7 6 5 8 7 6 5
Ω Ω
R23 50 AMPOUTAB R24 AMPOUTB 50 OPAMP INPUT OFF PIN ONE OF TRANSFORMER GND
Ω µ
F AMPINB
Ω µ
F R17 V C33 R29 V C34 500 0.1 500 –5 0.1 –5
Ω Ω
R15 R31 500 500
Figure 27. PCB Schematic (Continued) Rev. C | Page 18 of 24 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM SPECIFICATIONS EXPLANATION OF TEST LEVELS TIMING DIAGRAMS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS TEST CIRCUITS TERMINOLOGY THEORY OF OPERATION USING THE AD9288 ENCODE INPUT DIGITAL OUTPUTS ANALOG INPUT VOLTAGE REFERENCE TIMING USER-SELECTABLE OPTIONS AD9218/AD9288 CUSTOMER PCB BOM EVALUATION BOARD POWER CONNECTOR ANALOG INPUTS VOLTAGE REFERENCE CLOCKING DATA OUTPUTS DATA FORMAT/GAIN TIMING TROUBLESHOOTING OUTLINE DIMENSIONS ORDERING GUIDE