LA3246 Datasheet, PDF(4/13 Page) Sanyo Semicon Device – Stereo Preamplifier for Compact Double Cassette Playback-only Use

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LA3246 Datasheet, PDF (4/13 Pages) Sanyo Semicon Device – Stereo Preamplifier for Compact Double Cassette Playback-only Use

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LA3246

Sample Printed Circuit Pattern (Cu-foiled area)

Unit (resistance: â¦, capacitance: F)

IC Usage Notes

(1) It is recommended to connect a surge absorbing capacitor across input pins 1, 2 and GND and across input pins 19, 20 and

GND.

(2) The base of a PNP transistor is connected to input pins 1, 2 and 19, 20. If an electrolytic capacitor is connected in series with

the input pins, connect input resistor RIN must not exceed 500 kâ¦. (Reason: To minimize the variation in output DC voltage

at the time of input switching)

â¦

If a resistor of more than 500 kâ¦ is connected across input pin and GND, the noise (output) caused by amp 1 and amp 2 select is

liable to increase at the time of F/R switching.

No.2651-4/13

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