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AD6654BBC Arkusz danych(PDF) 7 Page - Analog Devices |
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AD6654BBC Arkusz danych(HTML) 7 Page - Analog Devices |
7 / 88 page AD6654 Rev. 0 | Page 7 of 88 ADC SWITCHING SPECIFICATIONS AVDD = 5.0 V, DRVDD = 3.3 V, VDDCORE = 1.8 V, VDDIO = 3.3 V, maximum rated sample rate, differential input, unless otherwise noted. Table 4. Parameter (Conditions) Temp Test Level Min Typ Max Unit SWITCHING PERFORMANCE Maximum Conversion Rate Full II 92.16 MSPS Minimum Conversion Rate Full IV 30 MSPS ENC Pulse Width High1 (tENCH) Full IV 5.154 5.425 ns ENC Pulse Width Low1 (tENCL) Full IV 5.154 5.425 ns 1 Several internal timing parameters are a function of t ENCL and tENCH, optimum performance will be achieved with 50/50 duty cycle. ADC AC SPECIFICATIONS AVDD = 5.0 V, DRVDD = 3.3 V, VDDCORE = 1.8 V, VDDIO = 3.3 V, maximum rated sample rate, differential input, unless otherwise noted. Table 5. Parameter (Conditions) Temp Test Level Min Typ Max Unit SIGNAL-TO-NOISE RATIO1 (WITHOUT HARMONICS) Analog Input Frequency 37 MHz ADC (46.08 MHz BW) 25°C V 74.5 dB CDMA (1.25 MHz BW) Full II 88 90.0 dB WCDMA (5.0 MHz BW) 25°C V 84 dB Analog Input Frequency 70 MHz ADC (46.08 MHz BW) 25°C V 73.5 dB CDMA (1.25 MHz BW) Full II 87.5 89 dB WCDMA (5.0 MHz BW) 25°C V 83 dB Analog Input Frequency 150 MHz ADC (46.08 MHz BW) 25°C V 73 dB CDMA (1.25 MHz BW) 25°C V 88 dB WCDMA (5.0 MHz BW) 25°C V 82 dB Analog Input Frequency 200 MHz ADC (46.08 MHz BW) 25°C V 72 dB CDMA (1.25 MHz BW) 25°C V 87 dB WCDMA (5.0 MHz BW) 25°C V 81 dB WORST HARMONIC2 (ANALOG INPUT @ −1 dBFS) 37 MHz Full II 85 93 dBc 70 MHz Full V 91 dBc 150 MHz Full V 71 dBc 200 MHz Full V 63 dBc INTERMODULATION DISTORTION (TWO-TONES SEPARATED BY 1 MHz)3 Analog Input = 55/56 MHz 25°C V 90 dBc ANALOG INPUT BANDWIDTH 25°C V 270 MHz 1 Analog input = −1 dB below full scale. 2 Includes Harmonic 2 through Harmonic 6. 3 Analog input = each −7 dB below full scale. |
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