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LC75371M Scheda tecnica(PDF) 7 Page - Sanyo Semicon Device |
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LC75371M Scheda tecnica(HTML) 7 Page - Sanyo Semicon Device |
7 / 17 page No. 5348-7/17 LC75371M Pin Functions Pin No. Symbol Function Notes Loudness circuit connections. Connect high-frequency compensation capacitors between the LCT1/RCT1 and LIN/RIN pins, and connect low- frequency compensation capacitors between LCT2/RCT2 and Vref2. LCT1 LCT2 RCT1 RCT2 10 9 27 28 Connections for the bass and treble supplementary capacitors for the tone control circuit Connect high-frequency compensation capacitors between the T1/T2 pairs. Connect low-frequency compensation capacitors between the T2/T3 pairs. LT1 LT2 LT3 RT1 RT2 RT3 8 7 6 29 30 31 Tone control outputs LOUT ROUT 5 32 • Fader inputs • These inputs must be driven by low-impedance outputs. LFIN RFIN 4 33 • Fader outputs. The front and rear can be attenuated independently. The left and right attenuation levels are identical. • These are low-impedance outputs, since they have built-in operational amplifiers. LROUT LFOUT RROUT RFOUT 2 3 35 34 VDD/2 voltage generation block. A capacitor must be connected between Vref1 and VSS to suppress power supply ripple. Vref1 36 • Common pin for the main volume control block, fader block, tone control block, gain control block, and input switching block. • Since the capacitor connected between Vref2 and VSS becomes the residual resistance when the volume control is set to maximum attenuation, the value of this capacitor must be selected carefully. • The voltage applied to this pin must never exceed VDD. Vref2 1 Continued on next page. |
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