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AD9774 Arkusz danych(PDF) 4 Page - Analog Devices |
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4 / 24 page –4– REV. B AD9774–SPECIFICATIONS DIGITAL FILTER SPECIFICATIONS Parameter Min Typ Max Units MAXIMUM INPUT CLOCK RATE (fCLOCK) DVDD = 5 V 32 MSPS DVDD = 3 V 25 32 MSPS DIGITAL FILTER CHARACTERISTICS Passband Width 1: 0.005 dB 0.410 fOUT/fCLOCK Passband Width: 0.01 dB 0.414 fOUT/fCLOCK Passband Width: 0.1 dB 0.420 fOUT/fCLOCK Passband Width: –3 dB 0.482 fOUT/fCLOCK LINEAR PHASE (FIR IMPLEMENTATION) STOPBAND REJECTION 0.591 fCLOCK to 3.419 fCLOCK –69.5 dB 0.591 fCLOCK to 1.409 fCLOCK –79.5 dB GROUP DELAY 2 38 Input Clocks IMPULSE RESPONSE DURATION –40 dB 53 Input Clocks –60 dB 62 Input Clocks NOTES 1Excludes sinx/x characteristic of DAC. 2Defined as the number of data clock cycles between impulse input and peak of output response. Specifications subject to change without notice. (TMIN to TMAX, AVDD = +2.7 V to +5.5 V, DVDD = +2.7 V to +5.5 V, IOUTFS = 20 mA unless otherwise noted) ABSOLUTE MAXIMUM RATINGS* With Respect Parameter to Min Max Units AVDD ACOM –0.3 +6.5 V DVDD DCOM –0.3 +6.5 V PLLVDD PLLCOM –0.3 +6.5 V ACOM DCOM –0.3 +0.3 V PLLCOM ACOM –0.3 +0.3 V PLLCOM DCOM –0.3 +0.3 V AVDD DVDD –6.5 +6.5 V PLLVDD DVDD –0.3 +6.5 V PLLVDD AVDD –0.3 +6.5 V CLKIN, CLK4 ×IN DVDD –0.3 +6.5 V SLEEP, SNOOZE DCOM –0.3 DVDD + 0.3 V Digital Inputs DCOM –0.3 DVDD + 0.3 V PLL DIVIDE, LPF ACOM –0.3 PLLVDD + 0.3 V PLLLOCK ACOM –0.3 PLLVDD + 0.3 V VCO IN/EXT ACOM –0.3 PLLVDD + 0.3 V IOUTA/IOUTB ACOM –0.3 AVDD + 0.3 V REFIO, FSADJ ACOM –0.3 AVDD + 0.3 V FSADJ ACOM –0.3 AVDD + 0.3 V ICOMP ACOM –0.3 AVDD + 0.3 V REFCOM ACOM –0.3 +0.3 V Junction Temperature +150 °C Storage Temperature –65 +150 °C Lead Temperature +300 °C (10 sec) *Stresses above those listed under Absolute Maximum Ratings may cause perma- nent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum ratings for extended periods may effect device reliability. ORDERING GUIDE Temperature Package Package Model Range Description Option* AD9774AS –40 °C to +85°C 44-Lead MQFP S-44 AD9774EB Evaluation Board *S = Metric Quad Flatpack. THERMAL CHARACTERISTIC Thermal Resistance 44-Lead MQFP θ JA = 53.2°C/W θ JC = 19°C/W |
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