전자부품 데이터시트 검색엔진 |
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TDA1905 데이터시트(PDF) 5 Page - STMicroelectronics |
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TDA1905 데이터시트(HTML) 5 Page - STMicroelectronics |
5 / 14 page Symbol Parameter Test conditions Min. Typ. Max. Unit BW Small signal bandwidth (-3dB) Vs = 14V RL =4 Ω Po = 1W 40 to 40,000 Hz Gv Voltage gain (open loop) Vs = 14V f = 1KHz 75 dB Gv Voltage gain (closed loop) Vs = 14V f = 1KHz RL =4 Ω Po =1W 39.5 40 40.5 dB eN Total input noise Rg =50 Ω Rg =1K Ω Rg = 10K Ω ( °) 1.2 1.3 1.5 4.0 µV Rg =50 Ω Rg =1K Ω Rg = 10K Ω ( °°) 2.0 2.0 2.2 6.0 µV S/N Signal to noise ratio Vs = 14V Po = 5.5W RL =4 Ω Rg = 10K Ω Rg =0 ( °) 90 92 dB Rg = 10K Ω Rg =0 ( °°) 87 87 dB SVR Supply voltage rejection Vs = 18V RL =8 Ω fripple = 100 Hz Rg = 10K Ω Vripple = 0.5Vrms 40 50 dB Tsd Thermal shut-down case temperatura (*) Ptot = 2.5W 115 °C MUTING FUNCTION VTOFF Muting-off threshold voltage (pin 4) 1.9 4.7 V VTON Muting-on threshold voltage (pin 4) 0 1.3 V 6.2 Vs R5 Input-resistance (pin 5) Muting off 80 200 K Ω Muting on 10 30 Ω R4 Input resistance (pin 4) 150 K Ω AT Muting attenuation Rg +R1 = 10K Ω 50 60 dB ELECTRICAL CHARACTERISTICS (continued) Note: ( °) Weighting filter = curve A. ( ° °) Filter with noise bandwidth: 22 Hz to 22 KHz. (*) See fig. 30 and fig. 31 5/14 TDA1905 |
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