la6548nh Sanyo Semiconductor Corporation, la6548nh Datasheet
la6548nh
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la6548nh Summary of contents
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... Ordering number : EN8768A LA6548NH Overview The LA6548NH 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. LA6548NH Conditions Only used by the BTL amplifiers (Not used by the 3 ...
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... (NC) 7 GND FR (NC VG2 11 11kΩ REG_C 13 REG_B 14 LA6548NH 2.5 2 1.8 1.5 1 0.8 0.25 0.5 0 – 20 SANYO : HSOP28H(375mil) Mute (output on/off control) 15.4kΩ 15.4kΩ 15.4kΩ Connect to the external pnp transistor collector. 3.3VREG RESET Connect to the external pnp transistor base. ...
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... VG4 Output pins LA6548NH Description Description V CC GND V CC GND Equivalent circuit GND GND 11kΩ 33kΩ *-/+ GND Continued on next page ...
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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. LA6548NH Description MUTE V CC GND GND Equivalent circuit 40kΩ ...
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... REG_C + 100μF 14 REG_B V CC LA6548NH VREF VG4 (NC) 22 LA6548NH GND 21 (NC 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. LA6548NH td td 80mV ...