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TS4990IDT Scheda tecnica(PDF) 11 Page - STMicroelectronics |
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TS4990IDT Scheda tecnica(HTML) 11 Page - STMicroelectronics |
11 / 32 page TS4990 Electrical characteristics 11/32 Figure 20. PSRR vs. DC output voltage Figure 21. PSRR vs. DC output voltage -2.5 -2.0 -1.5 -1.0 -0.5 0.0 0.5 1.0 1.5 2.0 2.5 -70 -60 -50 -40 -30 -20 -10 0 Vcc = 2.6V Vripple = 200mVpp RL = 8 Ω Cb = 1 μF AV = 2 Tamb = 25 °C Differential DC Output Voltage (V) -2.5 -2.0 -1.5 -1.0 -0.5 0.0 0.5 1.0 1.5 2.0 2.5 -50 -40 -30 -20 -10 0 Vcc = 2.6V Vripple = 200mVpp RL = 8 Ω Cb = 1 μF AV = 10 Tamb = 25 °C Differential DC Output Voltage (V) Figure 22. Output power vs. power supply voltage Figure 23. PSRR vs. DC output voltage 2.5 3.0 3.5 4.0 4.5 5.0 5.5 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 THD+N=10% RL = 4 Ω F = 1kHz BW < 125kHz Tamb = 25 °C THD+N=1% Vcc (V) -2.5 -2.0 -1.5 -1.0 -0.5 0.0 0.5 1.0 1.5 2.0 2.5 -60 -50 -40 -30 -20 -10 0 Vcc = 2.6V Vripple = 200mVpp RL = 8 Ω Cb = 1 μF AV = 5 Tamb = 25 °C Differential DC Output Voltage (V) Figure 24. PSRR at F = 217 Hz vs. bypass capacitor Figure 25. Output power vs. power supply voltage 0.1 1 -80 -70 -60 -50 -40 -30 Av=10 Vcc: 2.6V 3.3V 5V Av=5 Vcc: 2.6V 3.3V 5V Av=2 Vcc: 2.6V 3.3V 5V Tamb=25 °C Bypass Capacitor Cb ( F) 2.5 3.0 3.5 4.0 4.5 5.0 5.5 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 THD+N=10% RL = 8 Ω F = 1kHz BW < 125kHz Tamb = 25 °C THD+N=1% Vcc (V) |
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