LA4555 Sanyo Semiconductor Corporation, LA4555 Datasheet
LA4555
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LA4555 Summary of contents
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... 21800TN (KT)/90196RM/O147KI/5275MW, TS No.1697–1/10 Monolithic Linear IC LA4555 [LA4555 3.6 1.3 SANYO : DIP12F – ...
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... Equivalent Circuit Block Diagram Sample Application Circuit : Stereo Use LA4555 =9V, f=1kHz, Rg=600 , ...
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... A capacitor value more is required. C5 (C6) : Oscillation blocking capacitor. Use a polyester film capacitor that is good in high frequency response and temperature characteristic. The use of an electrolytic capacitor, ceramic capacitor may cause oscillation to occur at low temperatures. LA4555 fL : Low cutoff frequency Rf : Feedback resistance Continued on next page. ...
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... The CH1 is a noninverting amplifer and the CH2 is an inverting amplifier. The total voltage gain, being apparently higher than that of the CH1 by 6dB, is approximately calculated by the following formula. VG=20log R2/R1+6 (dB) To reduce the voltage gain connected and the following formula is used. VG=20log R2/Rf+R1+6 (dB) LA4555 fL : Low cutoff frequency RL : Load resistance Vi [dB] ...
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... Proper Cares in Using LA4555-Applied Set 1. If the transformer regulation is not as specified, the supply voltage drops momentarily when the motor is an AC- powered set is turned ON. In this case, hum noise may be generated. So, be careful of the transformer regulation muting To apply DC muting by controlling the NF pin recommended to use the circuit configuration shown right ...
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... LA4555 No.1697–6/10 ...
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... LA4555 No.1697–7/10 ...
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... LA4555 No.1697–8/10 ...
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... When the IC is used in radios or radio cassette tape recorders, keep a good distance between IC and bar antenna. 5. When making the board, refer to the sample printed circuit pattern should be noted that some plug jacks to be used for connecting to the external speaker are such that both poles are shorted once when connecting. LA4555 No.1697–9/10 ...
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... SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties. This catalog provides information as of February, 2000. Specifications and information herein are subject to change without notice. LA4555 PS No.1697–10/10 ...