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CDK1308 数据表(PDF) 6 Page - Cadeka Microcircuits LLC. |
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CDK1308 数据表(HTML) 6 Page - Cadeka Microcircuits LLC. |
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6 / 14 page ![]() ©2008 CADEKA Microcircuits LLC www.cadeka.com 6 ADVANCE Data Sheet Electrical Characteristics - CDK1308A (AVDD = 1.8V, DVDD = 1.8V, DVDDCLK = 1.8V, OVDD = 2.5V, 20MSPS clock, 50% clock duty cycle, -1dBFS 8MHz input signal, unless otherwise noted) Symbol Parameter Conditions Min Typ Max Units Performance SNR Signal to Noise Ratio FIN = 2MHz 61.7 dBFS FIN = 8MHz 61.6 dBFS FIN ≃ FS/2 61.6 dBFS FIN = 20MHz 61.6 dBFS SINAD Signal to Noise and Distortion Ratio FIN = 2MHz 61.7 dBFS FIN = 8MHz 61.6 dBFS FIN ≃ FS/2 60.5 dBFS FIN = 20MHz 61.6 dBFS SFDR Spurious Free Dynamic Range FIN = 2MHz 84.1 dBc FIN = 8MHz 85.5 dBc FIN ≃ FS/2 70.3 dBc FIN = 20MHz 87.5 dBc HD2 Second order Harmonic Distortion FIN = 2MHz -88.8 dBc FIN = 8MHz -89.5 dBc FIN ≃ FS/2 -95.9 dBc FIN = 20MHz -91.4 dBc HD3 Third order Harmonic Distortion FIN = 2MHz -89.5 dBc FIN = 8MHz -90.5 dBc FIN ≃ FS/2 -70.3 dBc FIN = 20MHz -89.7 dBc ENOB Effective number of Bits FIN = 2MHz 10.0 bits FIN = 8MHz 9.9 bits FIN ≃ FS/2 9.8 bits FIN = 20MHz 9.9 bits Power Supply AIDD Analog Supply Current 5.6 mA DIDD Digital Supply Current Digital core supply 1.0 mA OIDD Output Driver Supply 2.5V output driver supply, sine wave input, FIN = 1MHz, CLK_EXT enabled 1.7 mA 2.5V output driver supply, sine wave input, FIN = 1MHz, CLK_EXT disabled 1.2 mA Analog Power Dissipation 10.1 mW Digital Power Dissipation OVDD = 2.5V, 5pF load on output bits, FIN = 1MHz, CLK_EXT disabled 4.8 mW Total Power Dissipation OVDD = 2.5V, 5pF load on output bits, FIN = 1MHz, CLK_EXT disabled 14.9 mW Power Down Dissipation 9.9 μW Sleep Mode Power Dissipation, Sleep mode 7.7 mW Clock Inputs Max. Conversion Rate 20 MSPS Min. Conversion Rate 15 MSPS |
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