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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Power dissipation Pd is increased depending on the supply voltage and load. The potential at point A is set to 3. For AC power supply, however, it is recommended to actually measure Pd on the transformer of each set. Supply voltage at maximum output. DC muting To apply DC muting by controlling the NF pin, it is recommended to use the circuit configuration shown right.
Capacitors C9 and C10 are meant for coupling the speaker to the IC. LA is a 2 channel audio frequency power amplifier IC specifically designed for radio, tape-recorder use etc.
Cu-foiled area in the vicinity of the heat sink of the IC as large as possible when designing the printed circuit board. In this case, hum noise may be generated.
View la4550 datasheet:
The following is a formula to be used to calculate Pd. However, if slider contact noise of the variable resistor presents any problem, connect a.
To apply DC muting by controlling the NF pin, it is recommended. Supply voltage at Pd max. 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.
LA (Sanyo) – 2-channel Af Power Amp For Radio, Tape Recorder Use | eet
Since the input circuit uses PNP transistors, no input coupling capacitor is required. Leave a Reply Datassheet reply Your email address will not be published. The material of the heat sink is recommended to be copper or iron which is solderable. Your email address will not be published. Slider contact noise of variable resistor.
For stereo application, two identical amplifier modes have to be built according to the circuit diagram. 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.
LA Sanyo Semiconductor Corporation, LA Datasheet
For the datasheett of the heat sink, refer to the Pd — Ta characteristic. 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.
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 Cu-foiled area in the vicinity of the heat sink of the IC as large as possible when designing the printed circuit board. Supply voltage at Pd max V CC 1: For AC power supply, however, it is recommended to actually measure Pd on the transformer of each. Supply voltage at maximum output r: You may also like: The LA can be operated from 12 Vdc and can deliver 4W of output power into an datwsheet ohm speaker.
In the circuit capacitors C6 and C3 provides feedback and their value determines the lower cut-off frequency.
SANYO assumes no responsibility for equipment failures that result from using products at values that. Example of Heat Sink Mounting Method. If the transformer regulation is not as specified, the supply voltage drops momentarily when the motor of an AC.
In this circuit LA is wired in bridge mode.
However, if slider contact noise of the variable resistor presents any problem, connect a capacitor in series with input. Since the DIPF package is such that the Cu-foiled area of the printed circuit board is used to dissipate heat, make the. Branch C2, R1 and C8, R3 are meant for preventing oscillations, and so the high frequency stability of the LA audio amplifier gets improved.
AUDIO Cross Reference LA4550
Audio input can be applied to pin 8 of the IC with respect to the ground. So, it is recom- mended to use the printed circuit board together with the heat sink. The following is a formula to be used to calculate Pd for stereo use. The material of the. LA audio amplifier circuit.