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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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TA2170FTG 데이터시트(PDF) 6 Page - Toshiba Semiconductor |
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TA2170FTG 데이터시트(HTML) 6 Page - Toshiba Semiconductor |
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6 / 12 page  TA2170FTG 2006-04-19 6 (2) 2 inputs mode Attenuation to an input signal (dB) MUTE SW BUF1 BUF2 BUF3 Total gain (dB) MUTE1 MUTE1A MUTE2 MUTE3 Ach Bch Ach Bch Ach Bch Ach Bch Input signal is applied to BUF 1 and BUF 2. OFF OFF OFF ON −6 −6 −6 −6 ⎯ ⎯ 0 0 OFF OFF OFF OFF −9.5 −9.5 −9.5 −9.5 ⎯ ⎯ −3.5 −3.5 OFF ON OFF ON ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ OFF ON OFF OFF ⎯ −6 −9.5 −6 ⎯ ⎯ −3.5 0 Input signal is applied to BUF 1 and BUF 3. OFF OFF ON OFF −6 −6 ⎯ ⎯ −6 −6 0 0 OFF OFF OFF OFF −9.5 −9.5 ⎯ ⎯ −9.5 −9.5 −3.5 −3.5 OFF ON ON OFF ⎯ −6 ⎯ ⎯ −6 −6 −6 0 OFF ON OFF OFF ⎯ −9.5 ⎯ ⎯ −9.5 −9.5 −9.5 −3.5 Input signal is applied to BUF 2 and BUF 3. ON ON/OFF OFF OFF ⎯ ⎯ −6 −6 −6 −6 0 0 OFF ON OFF OFF ⎯ ⎯ −6 −9.5 −6 −9.5 0 −3.5 OFF OFF OFF OFF ⎯ ⎯ −9.5 −9.5 −9.5 −9.5 −3.5 −3.5 (3) 3 inputs mode Attenuation to an input signal (dB) MUTE SW BUF1 BUF2 BUF3 Total gain (dB) MUTE1 MUTE1A MUTE2 MUTE3 Ach Bch Ach Bch Ach Bch Ach Bch OFF OFF OFF OFF −9.5 −9.5 −9.5 −9.5 −9.5 −9.5 0 0 OFF ON OFF OFF ⎯ −9.5 −9.5 −9.5 −9.5 −9.5 −3.5 0 2. Low-cut compensation The low-frequency range can be decreased using an output-coupling capacitor and a load (fc = 50 Hz at C = 100 µF, R = 32 Ω). However, since the capacitor is connected between the IC’s output pin (pin 9/11) and EQ pin (pin 8/12), the low-frequency gain of the power amplifier increases, enabling low-cut compensation to be performed. For the response of capacitors of different values, please refer to Figure 1. Figure 1 Capacitor response Frequency f (Hz) RES – f Coupling C = 100 µF RL = 32 Ω 0.15 µF 4.0 −12.0 −10.0 −8.0 −6.0 −4.0 −2.0 0.0 2.0 10 50 100 500 1000 5000 0.1 µF 0.22 µF No compensation |
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