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GP2021 数据表(PDF) 42 Page - Mitel Networks Corporation |
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GP2021 数据表(HTML) 42 Page - Mitel Networks Corporation |
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42 / 62 page ![]() 42 GP2021 ELECTRICAL CHARACTERISTICS T amb = –40 °C to 85 °C, V DD = 5V 10%. The input thresholds and output voltage limits for the logic signal pins are tested and guaranteed by production test. All other parameters are guaranteed by characterisation and design. They apply within the specified ambient temperature and supply voltage ranges unless otherwise stated. Value Characteristics Symbol Min Typ Max Units Conditions Supply Current I DD 22 mA 0 Channels enabled. 27 mA 4 Channels enabled. 32 mA 8 Channels enabled. 38 mA 12 Channels enabled. 20 150 µA Power Down Mode 2.2V – 3.3V (Note 3) 50 500 µA Power Down Mode 5.0V (Note 3) Battery backup Voltage V BATT 2.2 V Power Down Mode All TTL Inputs, with and without Pull–up or Pull–down Resistors: type TTL High level Input Voltage 2.0 V Low level Input Voltage 0.8 V Schmitt Trigger inputs Type ST1 Positive–going Threshold VI + 1.9 2.3 V V DD = 3V Negative–going Threshold VI – 0.8 1.2 V V DD = 3V Hysteresis Vh 0.35 0.7 V V DD = 3V Schmitt Trigger inputs Type ST2 Positive–going Threshold VI + 1.72 2.32 V Negative–going Threshold VI – 0.72 1.10 V Hysteresis Vh 0.3 0.62 V Master clocks : type Diff Note 2 Input Voltage High 0.8V DD V D.C. coupled Input Voltage Low 0.2V DD V D.C. coupled OR D.C. coupled differential sinewave (pk–pk) 130 mV Mid point at nominal 4.3V OR Peak to Peak single sinewave 600 mV AC coupled Crystal Oscillator Type XTLI, XTLO Frequency Range f osc 32 1000 kHz Amplifier Transconductance gm 220 550 2500 µA/V Output Impedance Z0 20 56 100 kW |
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