LA 2-channel af Power Amp For Radio, Tape Recoder Use. Features. Low quiescent current. On-chip 2 channels permitting use in stereo and bridge. LA Datasheet PDF Download – 2-Channel AF Power Amplifier, LA data sheet. Sanyo LA datasheet, 2-Channel AF Power Amplifier (1-page), LA datasheet, LA pdf, LA datasheet pdf, LA pinouts.
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So, datazheet is recom. The use of the Cu-foiled area indicated by shading in the above-mentioned sample printed circuit pattern makes it possible to dissipate more heat. SANYO assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values such as maximum ratings, operating condition ranges,or other parameters listed in products specifications of any and all SANYO products described or contained herein. So, it is recom- mended to use the printed circuit board together with the heat sink.
The material of the.
SANYO assumes no responsibility for equipment failures that result from lz4550 products at values that. The following is a formula to be used to calculate Pd. Supply voltage at quiescent mode.
Supply voltage at Pd max. The potential at point. It is recommended to apply silicone grease to the IC plastic area to reduce thermal resistance between the heat sink and the IC plastic area.
Cu-foiled area in the vicinity of the heat sink of the IC as large as possible when designing the printed circuit dtasheet. C4 is a ripple filtering capacitor while C11 and C12 are meant for power supply filtering. Since the input circuit uses PNP transistors, no input coupling capacitor is required. The material of the heat sink la455 recommended to be copper or iron which is solderable.
If the transformer regulation is not as specified, the supply voltage drops momentarily when the motor of an AC- powered set is turned ON.
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Since the DIPF package is such that the Cu-foiled datashedt of the printed circuit board is used to dissipate heat, make the. LA audio amplifier circuit. Previous post Next post. The LA can be operated from 12 Vdc and can deliver 4W of output power into an 8 ohm speaker. Dtasheet contact noise of variable resistor Since the input circuit uses PNP transistors, no input coupling capacitor is required. In the circuit capacitors C6 and C3 provides feedback and their value determines the lower cut-off frequency.
The following is a formula to be used to calculate Pd for stereo use. Power dissipation Pd is increased depending on the supply voltage and load.
Example of Heat Sink Mounting Method. For stereo application, two identical amplifier modes have to be built according to the circuit diagram. For AC power supply, however, it datashet recommended to actually measure Pd on the transformer of each.
Slider contact noise of variable resistor.
AUDIO Cross Reference LA4550
Supply voltage at quiescent mode V CC Pd: However, if slider contact noise of the variable resistor presents any problem, connect a capacitor in series with input. Capacitors C9 and C10 are meant for coupling the speaker to the IC. Supply voltage at maximum output.
The potential at point A is set to 3. Supply voltage at Pd max V CC 1: The heat sink must be of such a shape as to be able to dissipate heat from the IC plastic area and fin area and is soldered to. However, if slider datasjeet noise of the variable resistor presents any problem, connect a. In this circuit LA is wired in bridge mode.
LA Hoja de datos ( Datasheet PDF ) – 2-Channel AF Power Amplifier
Thermal Design Since the DIPF package is such that the Cu-foiled area of the printed circuit board is used to dissipate heat, make the Lx4550 area in the vicinity of the heat sink of the IC as large as possible when designing the printed circuit board. Dataasheet C1 and C7 are meant for bootstrapping. So, be careful of the transformer regulation. LA is a 2 channel audio frequency power amplifier IC specifically designed for radio, tape-recorder use etc.
If the transformer regulation is not as specified, the supply l4a550 drops momentarily when the motor of an AC. Branch C2, R1 and C8, R3 are meant for preventing oscillations, and so the high frequency stability of the LA audio amplifier gets improved.
(PDF) LA4550 Datasheet download
Audio input can be applied to pin 8 of the IC with respect to the ground. To apply DC muting by controlling the NF pin, it is recommended. For AC power supply, however, it is recommended to actually measure Pd on the transformer of each set.
It is recommended to apply silicone grease to the IC. For the size of the heat sink, refer to the Pd — Ta characteristic. DC muting To apply DC muting by controlling the NF pin, it is recommended to use the circuit configuration shown right. Leave a Reply Cancel reply Your email address will not be published. In this case, hum noise may be generated. You may also like: