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M74HC4351TTR Folha de dados(PDF) 5 Page - STMicroelectronics |
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M74HC4351TTR Folha de dados(HTML) 5 Page - STMicroelectronics |
5 / 12 page M74HC4351 5/12 CAPACITIVE CHARACTERISTICS 1) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC ANALOG SWITCH CHARACTERISTICS (GND = 0V;TA = 25°C) (*) : Input COMMON Terminal, and measured at SWITCH Terminal. NOTE : These Characteristics are determined by design of device. Symbol Parameter Test Condition Value Unit VCC (V) VEE (V) TA = 25°C -40 to 85°C -55 to 125°C Min. Typ. Max. Min. Max. Min. Max. CIN Input Capacitance 5 10 10 10 pF CIS Common Terminal Capacitance 5.0 -5.0 36 70 70 70 pF COS Switch Terminal Capacitance 5.0 -5.0 7 15 15 15 pF CIOS Feed Through Capacitance 5.0 -5.0 0.95 2 2 2 pF CPD Power Dissipation Capacitance (note 1) 5.0 GND 23 pF Symbol Parameter Test Condition Value Unit VCC (V) VEE (V) VIN (Vp-p) Typ. Sine Wave Distortion (THD) 2.25 -2.25 4 fIN = 1 KHz RL = 10 KΩ, CL = 50 pF 0.025 % 4.5 -4.5 8 0.020 fMAX Frequency Response (Switch ON) 4.5 -4.5 Adjust fIN voltage to obtain 0 dBm at VOS. Increase fIN Frequency until dB meter reads -3dB RL = 50Ω, CL = 10 pF(*) 200 MHz Feed through Attenuation (Switch OFF) 2.25 -2.25 VIN is centered at (VCC - VEE) /2. Adjust input for 0 dBm RL = 600Ω, CL = 50 pF, fIN = 1MHz sine wave -50 dB 4.5 -4.5 -50 6.0 -6.0 -50 Crosstalk Control to Switch 2.25 -2.25 tr = tf =6ns RL = 600Ω, CL = 50 pF fIN = 1MHz square wave 110 mV 4.5 -4.5 225 6.0 -6.0 310 Crosstalk (Between Any Switches) 2.25 -2.25 Adjust VIN to Obtain 0 dBm at input RL = 600Ω, CL = 50 pF, fIN = 1MHz sine wave -50 dB 4.5 -4.5 -50 6.0 -6.0 -50 |
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