LA8518NM Datasheet, PDF (27/31 Pages) Sanyo Semicon Device – Signal Processor for Cordless Telephone Base Sets

LA8518NM
IC Usage Notes
1) Printed circuit board
When creating a printed circuit board, make the GND lines for pins 19 and 38 thick and short. Common impedance could
result in a worsening of distortion.
2) When used nearly at the maximum ratings, even a slight fluctuation in conditions could result in the maximum ratings being
exceeded, which may result in damage to the IC. Therefore, allow for an adequate safety margin in regards to the power supply
voltage, etc., and use the IC only within ranges that will not exceed the maximum ratings under any circumstances.
3) Short circuits between pins
Turning on the power while there is a short circuit between pins is a cause of IC damage and deterioration. Therefore, when
mounting the IC on a board, make sure that the pins are not short-circuited by solder, etc., before applying power.
4) Load short circuit
Leaving a load in a short-circuited state for an extended period of time is a cause of IC damage and deterioration. Therefore, do
not short-circuit the load at any time.
5) Power amplifier
A phase compensation capacitor must be connected between pin 39 (PWR OUT) and pin 38 (P. GND) and positioned near the
IC.
DC characteristics (power on)
Pin 64
Pin 62
Pin 61
Line current, I_L − mA
Transmitting characteristics (power on)
Pin 56 input
Open
DC characteristics (power off)
Pin 64
Pin 62
Pin 61
Line current, I_L − mA
Transmitting characteristics (power off)
Pin 56 input
Open
Line current, I_L − mA
Line current, I_L − mA
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