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AD9288BST-100 数据表(PDF) 4 Page - Analog Devices |
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AD9288BST-100 数据表(HTML) 4 Page - Analog Devices |
4 / 16 page REV. 0 AD9288 –4– PIN CONFIGURATION 36 35 34 33 32 31 30 29 28 27 26 25 13 14 15 16 17 18 19 20 21 22 23 24 1 2 3 4 5 6 7 8 9 10 11 12 48 47 46 45 44 39 38 37 43 42 41 40 PIN 1 IDENTIFIER TOP VIEW (Not to Scale) NC NC VDD GND GND VD VD GND AINA AINA DFS REFINA REFOUT REFINB NC = NO CONNECT S1 S2 AINB AINB GND GND VDD NC AD9288 GND NC PIN FUNCTION DESCRIPTIONS Pin No. Name Description 1, 12, 16, 27, 29, 32, 34, 45 GND Ground. 2AINA Analog Input for Channel A. 3 AINA Analog Input for Channel A (Complementary). 4 DFS Data Format Select: (Offset binary output available if set low. Twos complement output available if set high). 5 REFINA Reference Voltage Input for Channel A. 6 REFOUT Internal Reference Voltage. 7 REFINB Reference Voltage Input for Channel B. 8 S1 User Select #1 (Refer to Table I), Tied with Respect to VD. 9 S2 User Select #2 (Refer to Table I), Tied with Respect to VD. 10 AINB Analog Input for Channel B (Complementary). 11 AINB Analog Input for Channel B. 13, 30, 31, 48 VD Analog Supply (3 V). 14 ENCB Clock Input for Channel B. 15, 28, 33, 46 VDD Digital Supply (3 V). 17–24 D7B–D0B Digital Output for Channel B. 25, 26, 35, 36 NC Do Not Connect. 37–44 D0A–D7A Digital Output for Channel A. 47 ENCA Clock Input for Channel A. Aperture Delay The delay between a differential crossing of ENCODE and ENCODE and the instant at which the analog input is sampled. Aperture Uncertainty (Jitter) The sample-to-sample variation in aperture delay. Differential Nonlinearity The deviation of any code from an ideal 1 LSB step. Encode Pulsewidth/Duty Cycle Pulsewidth high is the minimum amount of time that the EN- CODE pulse should be left in Logic “1” state to achieve rated performance; pulsewidth low is the minimum time ENCODE pulse should be left in low state. At a given clock rate, these specs define an acceptable Encode duty cycle. Integral Nonlinearity The deviation of the transfer function from a reference line measured in fractions of 1 LSB using a “best straight line” deter- mined by a least square curve fit. Minimum Conversion Rate The encode rate at which the SNR of the lowest analog signal frequency drops by no more than 3 dB below the guaranteed limit. Maximum Conversion Rate The encode rate at which parametric testing is performed. Output Propagation Delay The delay between a differential crossing of ENCODE and ENCODE and the time when all output data bits are within valid logic levels. Power Supply Rejection Ratio The ratio of a change in input offset voltage to a change in power supply voltage. Signal-to-Noise-and-Distortion (SINAD) The ratio of the rms signal amplitude (set at 1 dB below full scale) to the rms value of the sum of all other spectral compo- nents, including harmonics but excluding dc. Signal-to-Noise Ratio (SNR) The ratio of the rms signal amplitude (set at 1 dB below full scale) to the rms value of the sum of all other spectral compo- nents, excluding the first five harmonics and dc. Spurious-Free Dynamic Range (SFDR) The ratio of the rms signal amplitude to the rms value of the peak spurious spectral component. The peak spurious compo- nent may or may not be a harmonic. May be reported in dBc (i.e., degrades as signal levels is lowered), or in dBFS (always related back to converter full scale). Two-Tone Intermodulation Distortion Rejection The ratio of the rms value of either input tone to the rms value of the worst third order intermodulation product; re- ported in dBc. Two-Tone SFDR The ratio of the rms value of either input tone to the rms value of the peak spurious component. The peak spurious component may or may not be an IMD product. May be reported in dBc (i.e., degrades as signal levels is lowered), or in dBFS (always related back to converter full scale). Worst Harmonic The ratio of the rms signal amplitude to the rms value of the worst harmonic component, reported in dBc. DEFINITION OF SPECIFICATIONS Analog Bandwidth (Small Signal) The analog input frequency at which the spectral power of the fundamental frequency (as determined by the FFT analysis) is reduced by 3 dB. |
类似零件编号 - AD9288BST-100 |
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类似说明 - AD9288BST-100 |
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