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TS4890ID 数据表(PDF) 5 Page - STMicroelectronics |
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TS4890ID 数据表(HTML) 5 Page - STMicroelectronics |
5 / 32 page TS4890 5/32 REMARKS 1. All measurements, except PSRR measurements, are made with a supply bypass capacitor Cs = 100µF. 1. External resistors are not needed for having better stability when supply @ Vcc down to 3V. The quiescent current still remains the same. 2. The standby response time is about 1µs. Components Functional Description Rin Inverting input resistor which sets the closed loop gain in conjunction with Rfeed. This resistor also forms a high pass filter with Cin (fc = 1 / (2 x Pi x Rin x Cin)) Cin Input coupling capacitor which blocks the DC voltage at the amplifier input terminal Rfeed Feed back resistor which sets the closed loop gain in conjunction with Rin Cs Supply Bypass capacitor which provides power supply filtering Cb Bypass pin capacitor which provides half supply filtering Cfeed Low pass filter capacitor allowing to cut the high frequency (low pass filter cut-off frequency 1 / (2 x Pi x Rfeed x Cfeed)) Rstb Pull-down resistor which fixes the right supply level on the standby pin Gv Closed loop gain in BTL configuration = 2 x (Rfeed / Rin) |
类似零件编号 - TS4890ID |
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类似说明 - TS4890ID |
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