| 전자부품 데이터시트 검색엔진 |
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SX28AC/SS 데이터시트(PDF) 42 Page - Parallax Inc |
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SX28AC/SS 데이터시트(HTML) 42 Page - Parallax Inc |
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42 / 51 page ![]() Parallax SX20AC/SX28AC www.parallax.com © Parallax Inc. Page 42 of 51 Rev 1.6 11/20/2006 17.3. AC Characteristics SX20/28AC at 75 MHz(Temp Range: 0°C <= Ta <= +70°C) SX20/28AC at 50 MHz (Temp Range: -40°C <= Ta <= +85°C) Symbol Parameter Min Typ Max Units Condition Fosc External CLKIN Frequency DC - 32 1.0 4.0 10 24 50 75 kHz MHz MHz MHz MHz MHz MHz LP1 LP2 RC XT1 XT2 HS1/HS2/HS3 HS3 Oscillator Frequency DC 0.032 DC 0.032 1.0 1.0 1.0 - 32 1.0 4.0 10.0 24.0 50 75 kHz MHz MHz MHz MHz MHz MHz LP1 LP2 RC XT1 XT2 HS1/HS2/HS3 HS3 Tosc External CLKIN Period 31.25 1.0 250 100 41.7 20 13.3 - - µs µs ns ns ns ns ns LP1 LP2 RC XT1 XT2 HS1/HS2/HS3 HS3 Oscillator Period 31.25 1.0 250 0.1 41.7 20 13.3 - - 31.25 - 31.25 1000.0 1000.0 - µs µs µs µs ns ns ns LP1 LP2 RC XT1 XT2 HS1/HS2/HS3 HS3 TosL, TosH Clock in (OSC1) Low or High Time 2.0 50 8.0 5.3 - - µs ns ns ns LP1/LP2 XT1/XT2 HS1/HS2/HS3 HS3 Note: Data in the Typical (“TYP”) column is at 25 °C unless otherwise stated. 17.4. Comparator DC and AC Specifications (50 MHz and 75 MHz Operation) Parameter Conditions Min Typ Max Units Input Offset Voltage 0.4 V < Vin < Vdd – 1.5 V +/- 10 +/- 25 mV Input Common Mode Voltage Range 0.4 Vcc - 1.3 V Voltage Gain 300 k V/V DC Supply Current (enabled) Vdd = 5.5 V 120 µA Response Time Voverdrive = 25 mV 250 ns |
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