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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AD9958/PCB датащи(PDF) 4 Page - Analog Devices |
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AD9958/PCB датащи(HTML) 4 Page - Analog Devices |
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4 / 40 page  AD9958 Rev. 0 | Page 4 of 40 SPECIFICATIONS AVDD and DVDD = 1.8 V ± 5%; DVDD_I/O = 3.3 V ± 5%; RSET = 1.91 kΩ; external reference clock frequency = 500 MSPS (REF_CLK multiplier bypassed), unless otherwise noted. Table 1. Parameter Min Typ Max Unit Test Conditions/Comments REF CLOCK INPUT CHARACTERISTICS See Figure 33 and Figure 34 Frequency Range REF_CLK Multiplier Bypassed 1 500 MHz REF_CLK Multiplier Enabled 10 125 MHz Internal VCO Output Frequency Range VCO Gain Bit Set High1 255 500 MHz Internal VCO Output Frequency Range VCO Gain Bit Set Low1 100 160 MHz Crystal REF_CLK Source Range 20 30 MHz Input Power Sensitivity −5 3 dBm Measured at the pin (single-ended) Input Voltage Bias Level 1.15 V Input Capacitance 2 pF Input Impedance 1500 Ω Duty Cycle w/REF_CLK Multiplier Bypassed 45 55 % Duty Cycle w/REF_CLK Multiplier Enabled 35 65 % CLK Mode Select (Pin 24) Logic 1 Voltage 1.25 1.8 V 1.8V digital input logic CLK Mode Select (Pin 24) Logic 0 Voltage 0.5 V 1.8 V digital input logic DAC OUTPUT CHARACTERISTICS Must be referenced to AVDD Resolution 10 Bits Full-Scale Output Current 1.25 10 mA Gain Error −10 10 %FS Channel-to-Channel Output Amplitude Matching Error –2.5 2.5 % Output Current Offset 1 25 µA Differential Nonlinearity ±0.5 LSB Integral Nonlinearity ±1.0 LSB Output Capacitance 3 pF Voltage Compliance Range AVDD – 0.50 AVDD + 0.50 V Channel-to-Channel Isolation 72 dB DAC supplies tied together (see Figure 21) WIDEBAND SFDR The frequency range for wideband SFDR is defined as dc to Nyquist 1 to 20 MHz Analog Out −65 dBc 20 to 60 MHz Analog Out −62 dBc 60 to 100 MHz Analog Out −59 dBc 100 to 150 MHz Analog Out −56 dBc 150 to 200 MHz Analog Out −53 dBc NARROWBAND SFDR 1.1 MHz Analog Out ( ±10 kHz) −90 dBc 1.1 MHz Analog Out ( ±50 kHz) −88 dBc 1.1 MHz Analog Out ( ±250 kHz) −86 dBc 1.1 MHz Analog Out ( ±1 MHz) −85 dBc 15.1 MHz Analog Out ( ±10 kHz) −90 dBc 15.1 MHz Analog Out ( ±50 kHz) −87 dBc 15.1 MHz Analog Out ( ±250 kHz) −85 dBc 15.1 MHz Analog Out ( ±1 MHz) −83 dBc 40.1 MHz Analog Out ( ±10 kHz) −90 dBc 40.1 MHz Analog Out ( ±50 kHz) −87 dBc 40.1 MHz Analog Out ( ±250 kHz) −84 dBc 40.1 MHz Analog Out ( ±1 MHz) −82 dBc 75.1 MHz Analog Out ( ±10 kHz) −87 dBc |
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