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ISL54402EVAL1Z Scheda tecnica(PDF) 8 Page - Intersil Corporation |
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ISL54402EVAL1Z Scheda tecnica(HTML) 8 Page - Intersil Corporation |
8 / 15 page 8 FN6240.3 July 12, 2006 Test Circuits and Waveforms Logic input waveform is inverted for switches that have the opposite logic sense. FIGURE 1A. MEASUREMENT POINTS Repeat test for all switches. CL includes fixture and stray capacitance. FIGURE 1B. TEST CIRCUIT FIGURE 1. SWITCHING TIMES (ISL54402 ONLY) FIGURE 2A. MEASUREMENT POINTS Repeat test for all switches. CL includes fixture and stray capacitance. FIGURE 2B. TEST CIRCUIT FIGURE 2. BREAK-BEFORE-MAKE TIME (ISL54402 ONLY) FIGURE 3. RON TEST CIRCUIT FIGURE 4. AUDIO CROSSTALK TEST CIRCUIT 50% tr < 20ns tf < 20ns tOFF 90% VINH 0V VNO VINL tON LOGIC INPUT SWITCH INPUT SWITCH OUTPUT 90% VOUT V OUT V (NO or NC) R L R L R ON () + ------------------------------ = SWITCH INPUT CONTROL INPUT VOUT RL CL COM NO or NC IN 300 Ω 35pF GND VDD C 90% VINH VINL tD LOGIC INPUT SWITCH OUTPUT 0V VOUT LOGIC INPUT IN COM RL CL VOUT 35pF 300 Ω NO NC VDD GND VNX C VDD C Dx or L or R or Nx COM IN GND VNX V1 RON = V1/40mA 40mA Repeat test for all switches. Note: COM designation in diagram refers to: D-/L, D+/R, COM1, and COM2. VBUS or VIN 0V or VDD ANALYZER VDD C L or R or NC SIGNAL GENERATOR RL GND IN1 COM 32 Ω N.C. COM R or L or NC Signal direction through switch is reversed, worst case values are recorded. Repeat test for all switches. COM designation in diagram refers to: D-/L, D+/R, COM1, and COM2. ISL54400, ISL54401, ISL54402 |
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