Datasheet AD9229 (Analog Devices) - 10

AD9229 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS A B C D DCO+ DCO– FCO+ FCO– D+A D– D+B D– D+C D– D+D D– 48 47 46 45 44 43 42 41 40 39 38 37 PIN 1 DRGND 1 INDICATOR 36 DRGND DRVDD 2 35 DRVDD NC 3 34 LVDSBIAS EXPOSED PADDLE, PIN 0 DTP 4 (Bottom of Package) 33 AGND AVDD 5 32 AVDD AGND 6 AD9229 31 AGND PDWN 7 TOP VIEW 30 CLK AVDD 8 (Not to Scale) 29 AVDD AGND 9 28 AGND VIN+A 10 27 VIN+D VIN–A 11 26 VIN–D AGND 12 25 AGND NC = NO CONNECT 13 14 15 16 17 18 19 20 21 22 23 24 B C
003
VIN– VIN+B AGND AVDD VREF REFB REFT AVDD SENSE AGND VIN+C VIN–
04418- Figure 3. LFCSP Top View
Table 6. Pin Function Descriptions Pin No. Mnemonic Description Pin No. Mnemonic Description
5, 8, 16, 21, AVDD Analog Supply 26 VIN–D ADC D Analog Input— 29, 32 Complement 6, 9, 12, 15, 22, AGND Analog Ground 27 VIN+D ADC D Analog Input—True 25, 28, 31, 33 30 CLK Input Clock 2, 35 DRVDD Digital Output Supply 34 LVDSBIAS LVDS Output Current Set 1, 36 DRGND Digital Ground Resistor Pin 0 AGND Exposed Paddle/Thermal Heat 37 D–D ADC D Complement Digital Slug (Located on Bottom of Output Package) 38 D+D ADC D True Digital Output 3 NC No Connect 39 D–C ADC C Complement Digital 4 DTP Digital Test Pattern Enable Output 7 PDWN Power-Down Selection (AVDD = 40 D+C ADC C True Digital Output Power Down) 41 D–B ADC B Complement Digital 10 VIN+A ADC A Analog Input—True Output 11 VIN–A ADC A Analog Input— 42 D+B ADC B True Digital Output Complement 43 D–A ADC A Complement Digital 13 VIN–B ADC B Analog Input— Output Complement 44 D+A ADC A True Digital Output 14 VIN+B ADC B Analog Input—True 45 FCO– Frame Clock Indicator— 17 SENSE Reference Mode Selection Complement Output 18 VREF Voltage Reference Input/Output 46 FCO+ Frame Clock Indicator—True 19 REFB Differential Reference (Bottom) Output 20 REFT Differential Reference (Top) 47 DCO– Data Clock Output— 23 VIN+C ADC C Analog Input—True Complement 24 VIN–C ADC C Analog Input— 48 DCO+ Data Clock Output—True Complement Rev. B | Page 9 of 40 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION PRODUCT HIGHLIGHTS REVISION HISTORY SPECIFICATIONS AC SPECIFICATIONS DIGITAL SPECIFICATIONS SWITCHING SPECIFICATIONS TIMING DIAGRAM ABSOLUTE MAXIMUM RATINGS EXPLANATION OF TEST LEVELS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS EQUIVALENT CIRCUITS TYPICAL PERFORMANCE CHARACTERISTICS TERMINOLOGY THEORY OF OPERATION ANALOG INPUT CONSIDERATIONS Differential Input Configurations Single-Ended Input Configuration CLOCK INPUT CONSIDERATIONS Power Dissipation and Power-Down Mode Digital Outputs Timing DTP Pin Voltage Reference Internal Reference Connection External Reference Operation Power and Ground Recommendations Exposed Paddle Thermal Heat Slug Recommendations EVALUATION BOARD POWER SUPPLIES INPUT SIGNALS OUTPUT SIGNALS DEFAULT OPERATION AND JUMPER SELECTION SETTINGS ALTERNATE ANALOG INPUT DRIVE CONFIGURATION OUTLINE DIMENSIONS ORDERING GUIDE