Datasheet AD9280 (Analog Devices) - 8

AD9280 –30 105 –35 100 –40 95 –45 –20.0 AMPLITUDE –50 90 THD – dB –55 –6.0 AMPLITUDE 85 –60 POWER CONSUMPTION – mW 80 –65 –0.5 AMPLITUDE –70 75 1.00E+05 1.00E+06 1.00E+07 1.00E+08 0 5 10 15 20 25 30 35 40 INPUT FREQUENCY – Hz CLOCK FREQUENCY – MHz
Figure 7. THD vs. Input Frequency Figure 10. Power Consumption vs. Clock Frequency (MODE = AVSS)
–80 1M 1M –70 900k AIN = –0.5dBFS 800k –60 700k –50 600k –40 500k THD – dB HITS –30 400k 300k –20 200k –10 100k 0 0 0 0 1.00E+06 1.00E+07 1.00E+08 N–1 N N+1 CLOCK FREQUENCY – Hz CODE
Figure 8. THD vs. Clock Frequency Figure 11. Grounded Input Histogram
1.01 30 20 CLOCK = 32MHz 10 FIN = 1MHz FUND F 1.009 0 S = 32MHz –10 –20 1.008 –30 – V –40 –50 V REF 1.007 –60 2nd3rd 5th 9th –70 7th8th –80 6th 4th 1.006 –90 –100 –110 1.005 –120 –50 –30 –10 10 30 50 70 90 0E+0 4E+6 8E+6 12E+6 16E+6 TEMPERATURE – °C SINGLE-TONE FREQUENCY DOMAIN
Figure 9. Voltage Reference Error vs. Temperature Figure 12. Single-Tone Frequency Domain REV. E –7– Document Outline FEATURES PRODUCT DESCRIPTION PRODUCT HIGHLIGHTS FUNCTIONAL BLOCK DIAGRAM AD9280-SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION PIN FUNCTION DESCRIPTIONS DEFINITIONS OF SPECIFICATIONS TYPICAL CHARACTERIZATION CURVES APPLYING THE AD9280 Theory of Operation Operational Modes Summary of Modes Voltage Reference Reference Buffer Analog Input Special Input and Reference Overview REFERENCE OPERATION Internal Reference Operation External Reference Operation STANDBY OPERATION CLAMP OPERATION Clamp Circuit Example DRIVING THE ANALOG INPUT DIFFERENTIAL INPUT OPERATION AD876-8 MODE OF OPERATION CLOCK INPUT DIGITAL INPUTS AND OUTPUTS APPLICATIONS Direct IF Down Conversion Using the AD9280 Grounding and Layout Rules Digital Outputs Three-State Outputs OUTLINE DIMENSIONS Ordering Guide REVISION HISTORY