Datasheet AD9248 (Analog Devices) - 39

AD9248 P P P P P P P P P P Q Q Q Q Q Q Q Q Q Q 13P 12P 11P 10P 13Q 12Q 11Q 10Q DRA GND D D D D D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 DORP DRB GND D D D D D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 DORQ 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 39 37 35 33 31 29 27 25 23 21 19 17 15 13 11 0 9 7 5 3 1 39 37 35 33 31 29 27 25 23 21 19 17 15 13 11 0 R4 R4 P3 P8 ADE ADE HE HE 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 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 P P P P P P P P P P Q Q Q Q Q Q Q Q Q Q 13P 12P 11P 10P 13Q 12Q 11Q 10Q DORP D8 D7 D6 D5 D4 D3 D2 D1 D0 D D D D D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 DORQ D D D D D9 16 15 14 13 12 11 10 9 16 15 14 13 12 11 10 9 16 15 14 13 12 11 10 9 16 15 14 13 12 11 10 9 220 220 220 220 R1 R2 R3 R4 R5 R6 R7 R8 0 R1 R2 R3 R4 R5 R6 R7 R8 R1 R2 R3 R4 R5 R6 R7 R8 R1 R2 R3 R4 R5 R6 R7 R8 SO16ISO SO16ISO SO16ISO SO16ISO 1 2 3 4 5 6 7 8 RZ5 R RZ6 R 1 2 3 4 5 6 7 8 RZ1 R 1 2 3 4 5 6 7 8 RZ9 R 1 2 3 4 5 6 7 8
μ
F C50 0.1 1
μ
F C5 0.1 L L L L 2
μ
F VD VD VD VD C5 0.1
μ
F 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 3 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 C5 0.1 C C C C ND ND OE2 2Q8 2Q7 2Q6 2Q5 2Q4 2Q3 2Q2 2Q1 G VC 1Q8 1Q7 1Q6 1Q5 1Q4 1Q3 1Q2 1Q1 OE1
μ
F OE2 2Q8 2Q7 2Q6 2Q5 2Q4 2Q3 2Q2 2Q1 1Q8 1Q7 1Q6 1Q5 1Q4 1Q3 1Q2 1Q1 GND GND VC 6 G VC GND GND VC GND OE1 GND UT C4 0.1 UT 16373A 16373A H H 7
μ
F U2 U4 OUTPUT OUTPUT C4 0.1 D = INP D = INP Q = 74LVC Q = 74LVC 8
μ
F 8 7 6 5 C 4 3 2 1 8 7 6 5 C 4 3 2 1 8 7 6 5 C 4 3 2 1 8 7 6 5 C 4 3 2 1 SN SN C4 0.1 LE2 2D 2D GND 2D 2D VC 2D 2D GND 2D 2D 1D 1D GND 1D 1D VC 1D 1D GND 1D 1D LE1 LE2 2D 2D GND 2D 2D VC 2D 2D GND 2D 2D 1D 1D GND 1D 1D VC 1D 1D GND 1D 1D LE1
μ
F 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 9 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 C4 0.1 L L L L L CLKLATB VD VD VD VD CLKLATA CLKLATA CLKLATB VD 16 15 14 13 12 11 10 9 16 15 14 13 12 11 10 9 16 15 14 13 12 11 10 9 16 15 14 13 12 11 10 9 220 220 220 220 R1 R2 R3 R4 R5 R6 R7 R8 R1 R2 R3 R4 R5 R6 R7 R8 R1 R2 R3 R4 R5 R6 R7 R8 R1 R2 R3 R4 R5 R6 R7 R8 SO16ISO SO16ISO RZ3 R 1 2 3 4 5 6 7 8 SO16ISO 1 2 3 4 5 6 7 8 RZ1 R 1 2 3 4 5 6 7 8 SO16ISO 1 2 3 4 5 6 7 8 RZ4 R RZ2 R A A A A A A A A A A B B B B B B B B B B 13A 12A 11A 10A D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 13B 12B 11B 10B D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 OTRA D D D D OTRB D D D D
04446-051 Figure 51. PCB Schematic (2 of 3) Rev. B | Page 38 of 48 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM PRODUCT HIGHLIGHTS TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS DC SPECIFICATIONS AC SPECIFICATIONS DIGITAL SPECIFICATIONS SWITCHING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS EXPLANATION OF TEST LEVELS ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TERMINOLOGY TYPICAL PERFORMANCE CHARACTERISTICS EQUIVALENT CIRCUITS THEORY OF OPERATION ANALOG INPUT Differential Input Configurations Single-Ended Input Configuration CLOCK INPUT AND CONSIDERATIONS POWER DISSIPATION AND STANDBY MODE DIGITAL OUTPUTS TIMING DATA FORMAT VOLTAGE REFERENCE Internal Reference Connection External Reference Operation AD9248 LQFP EVALUATION BOARD CLOCK CIRCUITRY ANALOG INPUTS REFERENCE CIRCUITRY DIGITAL CONTROL LOGIC OUTPUTS LQFP EVALUATION BOARD BILL OF MATERIALS (BOM) LQFP EVALUATION BOARD SCHEMATICS LQFP PCB LAYERS DUAL ADC LFCSP PCB POWER CONNECTOR ANALOG INPUTS OPTIONAL OPERATIONAL AMPLIFIER CLOCK VOLTAGE REFERENCE DATA OUTPUTS LFCSP EVALUATION BOARD BILL OF MATERIALS (BOM) LFCSP PCB SCHEMATICS LFCSP PCB LAYERS THERMAL CONSIDERATIONS OUTLINE DIMENSIONS ORDERING GUIDE