la6548nd Sanyo Semiconductor Corporation, la6548nd Datasheet
la6548nd
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la6548nd Summary of contents
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... Ordering number : EN8767A LA6548ND Overview The LA6548ND is a four-channel driver IC for CD players and recorders (four BTL amplifier channels). Functions • Four BTL connection power amplifier channels • max 0.7A • Built-in level shifters • Muting circuit (on/off control of all outputs) (This circuit applies to the BTL amplifier circuits. It does not control operation of the regulator.) • ...
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... MUTE is low, all the BTL amplifiers will be off The 3.3V regulator voltage when the RESET pin goes from high to low The 3.3V regulator voltage difference between the RESET pin going from high to low the RESET pin going from low to high. That is, the hysteresis. LA6548ND Conditions Only used by the BTL amplifiers (Not used by the 3 ...
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... GND VG2 12 11kΩ REG_C 14 Connect to the external pnp transistor collector. REG_B 15 Connect to the external pnp transistor base. LA6548ND 2.0 16 Independent IC 1 0.5 0 – 20 Mute (output on/off control) 15.4kΩ 15.4kΩ 15.4kΩ 15.4kΩ 3.3VREG RESET Pd max – Ta 1.5 ...
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... Power supply (This pin is shorted (pin 1) Equivalent Circuits Pin No. Pin Input pins. 4 VG1 VG2 VG3 VG4 LA6548ND Description Description Equivalent circuit VG GND GND Continued on next page No.8767-4/7 ...
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... CD Reset output delay time setting. The delay time until the point the reset output switches from low to high is set by the capacitor connected between this pin and ground. Reference to Reset operation. LA6548ND Description V CC GND MUTE V CC GND GND Equivalent circuit 33kΩ ...
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... REG_B V CC LA6548ND VREF VG4 GND 24 GND 23 LA6548ND 22 GND VG3 RESET VREF input (Reference voltage) FOCUS input FOCUS TRACKING TRACKING input Reset delay time setting ...
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... SANYO Semiconductor Co.,Ltd. shall not be liable for any claim or suits with regard to a third party's intellctual property rights which has resulted from the use of the technical information and products mentioned above. This catalog provides information as of April, 2007. Specifications and information herein are subject to change without notice. LA6548ND td td 80mV ...