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CXA1911Q датащи(PDF) 11 Page - Sony Corporation |
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CXA1911Q датащи(HTML) 11 Page - Sony Corporation |
11 / 18 page —11— CXA1911Q Description of Operation 1. Signal route Fig. 1 Op1 and Op2 are operational amplifiers. Op1 composes the playback equalizer by attaching a resistor and a capacitor to PBFB pin, and a capacitor to PBTC pin. Op2 is an input selector and a LINEOUT amplifier. The gain is 24 dB. The Dolby reference level is –6 dBm (LINEOUT). The adjustment method of playback equalizer is described in the paragraph (3). Note) Usually the TAPEIN pin level is adjusted by attenuator connected to PBOUT pin. The capacitance value connected to PBFB can be reduced by adjusting the resistance connected to PBFB to match the PBOUT level. With this method, the capacitance value can be reduced according to the amount that the resistance value is increased even for the same cut-off frequency. (These specifications use the latter method.) Op2 4dB 20dB 20dB NR OFF NR ON Op1 PBFB PBTC PBOUT TAPEIN Dolby level (–6dBm) LINEOUT PBIN F R NR |
Аналогичный номер детали - CXA1911Q |
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Аналогичное описание - CXA1911Q |
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