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TEA7530FP bảng dữ liệu(PDF) 8 Page - STMicroelectronics |
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TEA7530FP bảng dữ liệu(HTML) 8 Page - STMicroelectronics |
8 / 11 page PIN 5-7: LOUDSPEAKER OUTPUTS Maximum outpt voltage: Vpp =2VLS - 2.5V (with a gain of 32dB). Maximum output current: depending of the supply current. Two loudspeaker connection methods are possi- ble, using the amplifier in either symmetrical or asymmetrical mode. Note: It is advisable to connect a 47nF capacitor in par- allel with the loudspeaker (between pins 5 and 7). - ”Symmetrical” mode This is for low voltage working, but at a higher supply current. The highest output power is avail- able in this mode, due to the 5.7V maximum sup- ply voltage restriction, imposed by the TEA7530 Loudspeaker impedance recommended value: 50 Ω. Nominal gain available between earphone input and loudspeaker outputs: 32dB. - ”Asymmetrical” Mode This allows higher voltage operation, but at a lower supply current. Loudspeaker impedance recommended value: 25 Ω. Nominal gain available between earphone input and loudspeaker output: 32 - 6 = 26dB. Pin 6: Vref: INTERNAL REFERENCE Output which provides an internally regulated ref- erence voltage. Vref = 1.2V typical MAXIMUM AVAILABLE CURRENT: 5 µA Pin 8: ADJUST VLS This pin is used to adjust the IC supply voltage. Figure 14 Figure 15 TEA7530 8/11 |
Số phần tương tự - TEA7530FP |
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Mô tả tương tự - TEA7530FP |
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