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TDA7448 Scheda tecnica(PDF) 3 Page - STMicroelectronics |
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TDA7448 Scheda tecnica(HTML) 3 Page - STMicroelectronics |
3 / 14 page 3/14 TDA7448 Table 5. Electrical Characteristcs (refer to the test circuit Tamb = 25°C, VS = 9V, RL = 10KΩ, RG = 600Ω, unless otherwise specified) Symbol Parameter Test Condition Min. Typ. Max. Unit SUPPLY VS Supply Voltage 4.75 9 10 V IS Supply Current 7 mA SVR Ripple Rejection 80 dB INPUT STAGE RIN Input Resistance 35 50 65 K Ω VCL Clipping Level THD = 0.3% 2 2.5 Vrms SIN Input Separation The selected input is grounded through a 2.2 µ capacitor 90 dB VOLUME CONTROL CRANGE Control Range 79 dB AVMAX Max. Attenuation 79 dB ASTEP Step Resolution 0.5 1 1.5 dB EA Attenuation Set Error AV = 0 to -24dB -1 0 1 dB AV = -24 to -79dB -2.0 0 2.0 dB ET Tracking Error AV = 0 to -24dB -1 0 1 dB AV = -24 to -79dB -2 0 2 dB VDC DC Step adyacent attenuation steps -3 0 3 mV Amute Mute Attenuation 90 db AUDIO OUTPUTS VCLIP Clipping Level THD = 0.3% 2 2.5 Vrms RL Output Load Resistance 2 K Ω VDC DC Voltage Level 4.5 V GENERAL ENO Output Noise BW = 20Hz to 20KHz All gains = 0dB, Flat 10 15 µV S/N Signal to Noise Ratio All gains = 0dB; VO = 1Vrms 100 dB SC Channel Separation left/Right 80 90 dB THD Distortion AV = 0; VI = 1Vrms 0.01 0.1 % BUS INPUT VIl Input Low Voltage 1V VIH Input High Voltage 2.5 V IIN Input Current VIN = 0.4V -5 5 µA VO Output Voltage SDA Achnowledge IO = 1.6mA 0.4 0.8 V |
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