전자부품 데이터시트 검색엔진 |
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AD9244 데이터시트(PDF) 7 Page - Analog Devices |
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AD9244 데이터시트(HTML) 7 Page - Analog Devices |
7 / 37 page AD9244 Rev. C | Page 6 of 36 Test AD9244BST-65 AD9244BST-40 Parameter Temp Level Min Typ Max Min Typ Max Unit DIGITAL OUTPUTS (DRVDD = 3 V)2 Logic 1 Voltage (IOH = 50 μA) Full IV 2.95 2.95 V Logic 0 Voltage (IOL = 50 μA) Full IV 0.05 0.05 V Logic 1 Voltage (IOH = 0.5 mA) Full IV 2.8 2.8 V Logic 0 Voltage (IOL = 1.6 mA) Full IV 0.4 0.4 V 1 See the Clock Overview section for more details. 2 Output voltage levels measured with 5 pF load on each output. SWITCHING SPECIFICATIONS AVDD = 5 V, DRVDD = 3 V, unless otherwise noted. Table 4. Test AD9244BST-65 AD9244BST-40 Parameter Temp Level Min Typ Max Min Typ Max Unit CLOCK INPUT PARAMETERS Maximum Conversion Rate Full VI 65 40 MHz Minimum Conversion Rate Full V 500 500 kHz Clock Period1 Full V 15.4 25 ns Clock Pulse Width High2 Full V 4 4 ns Clock Pulse Width Low2 Full V 4 4 ns Clock Pulse Width High3 Full V 6.9 11.3 ns Clock Pulse Width Low3 Full V 6.9 11.3 ns DATA OUTPUT PARAMETERS Output Delay (tPD)4 Full V 3.5 7 3.5 7 ns Pipeline Delay (Latency) Full V 8 8 Clock cycles Aperture Delay (tA) Full V 1.5 1.5 ns Aperture Uncertainty (Jitter) Full V 0.3 0.3 ps rms Output Enable Delay Full V 15 15 ns OUT-OF-RANGE RECOVERY TIME Full V 2 1 Clock cycles 1 The clock period can be extended to 2 μs with no degradation in specified performance at 25°C. 2 With duty cycle stabilizer enabled. 3 With duty cycle stabilizer disabled. 4 Measured from clock 50% transition to data 50% transition with 5 pF load on each output. N N + 1 N + 2 N + 3 N + 4 N + 5 N + 6 N + 7 N + 8 N + 9 ANALOG INPUT CLOCK DATA OUT tPD tA N – 9 N – 8 N – 7 N – 6 N – 5 N – 4 N – 3 N – 2 N – 1 N N + 1 Figure 2. Input Timing |
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