ADC12J1600_16 Datasheet, PDF (29/98 Pages) Texas Instruments – GSPS ADCs With Integrated DDC

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ADC12J1600, ADC12J2700
SLAS969C – JANUARY 2014 – REVISED JULY 2015
Typical Characteristics (continued)
Unless otherwise noted, these specifications apply for V_(VA12) = V_(VD12) = 1.2 V, V_(VA19) = 1.9 V, VIN FSR (AC coupled) =
Default setting, differential AC-coupled sinewave input clock, ƒ_(DEVCLK) = 2.7 or 1.6 GHz at 0.5 V_PP with 50% duty cycle,
R_(RBIAS) = 3.3 kΩ ±0.1%, after a Foreground mode calibration with Timing Calibration enabled. T_A = 25°C. V_I = –1 dBFS.
30
0.0025
Filter Response
0
-80dB
0
-30
-60
-0.0025
-90
-120
-150
-0.005
-0.0075
-180
0
0.1
0.2
0.3
0.4
Normalized to Filter Input Sample Rate
0.5
D061
-0.01
0
0.006
0.012
0.018
0.024
Normalized to Filter Input Sample Rate
0.03
D062
Figure 57. Decimate by 16 - Stopband Response
30
Filter Response
0
-80dB
-30
-60
-90
-120
-150
-180
0
0.1
0.2
0.3
0.4
Normalized to Filter Input Sample Rate
0.5
D063
Figure 58. Decimate by 16 - Passband Response
0.0025
0
-0.0025
-0.005
-0.0075
-0.01
0
0.005
0.01
0.015
0.02
Normalized to Filter Input Sample Rate
0.025
D064
Figure 59. Decimate by 20 - Stopband Response
30
Filter Response
0
-30
-60
-90
-120
-150
-180
0
0.1
0.2
0.3
0.4
Normalized to Filter Input Sample Rate
0.5
D065
Figure 60. Decimate by 20 - Passband Response
0.0025
0
-0.0025
-0.005
-0.0075
-0.01
0
0.003
0.006
0.009
0.012
Normalized to Filter Input Sample Rate
0.015
D066
Figure 61. Decimate by 32 - Stopband Response
Figure 62. Decimate by 32 - Passband Response
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29
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