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AD1846 Scheda tecnica(PDF) 4 Page - Analog Devices |
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AD1846 Scheda tecnica(HTML) 4 Page - Analog Devices |
4 / 28 page AD1846 REV. A –4– DAC ATTENUATOR Min Typ Max Units Step Size (0 dB to –60 dB) 1.3 1.5 1.7 dB (Tested at Steps 0 dB, –19.5 dB and –60 dB) Step Size (–60 dB to –94.5 dB)* 1.0 1.5 2.0 dB Output Attenuation Range Span* 93.5 94.5 95.5 dB ANALOG OUTPUT Min Typ Max Units Full-Scale Output Voltage 0.707 V rms 1.8 2.0 2.2 V p-p Output Impedance* 600 Ω External Load Impedance 10 k Ω Output Capacitance* 15 pF External Load Capacitance 100 pF VREF 2.00 2.25 2.50 V VREF Current Drive 100 µA VREF Output Impedance 4 k Ω Mute Attenuation of 0 dB –80 dB Fundamental* (OUT) Mute Click 5mV (|Muted Output Minus Unmuted Midscale DAC Output|) SYSTEM SPECIFICATIONS Min Typ Max Units Peak-to-Peak Frequency Response Ripple* 1.0 dB (Line In to Line Out) Differential Nonlinearity* ±1 Bit Phase Linearity Deviation* 5 Degrees STATIC DIGITAL SPECIFICATIONS Min Max Units High Level Input Voltage (VIH) Digital Inputs 2.4 (VDD) + 0.3 V XTAL1/2I 2.4 (VDD) + 0.3 V Low Level Input Voltage (VIL) –0.3 0.8 V High Level Output Voltage (VOH) at IOH = –2 mA 2.4 V Low Level Output Voltage (VOL) at IOL = 2 mA 0.4 V Input Leakage Current –10 10 µA (GO/NOGO Tested) Output Leakage Current –10 10 µA (GO/NOGO Tested) DIGITAL MIX ATTENUATOR Min Typ Max Units Step Size (0 dB to –94 dB) (Tested at Steps 0 dB, –19.5 dB) 1.0 1.5 2.0 dB Output Attenuation Range Span* –93.5 95.5 dB *Guaranteed, not tested. |
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