Technical Note
15/17
www.rohm.com
2010.06 - Rev.A
© 2010 ROHM Co., Ltd. All rights reserved.
BD3813KS,BD3815KS
●Notes for use
(1) The numbers and data shown above are representative design values and are not guaranteed.
(2) Although the sample application circuits are guaranteed, further verification of the electrical characteristics are
recommended. When modifying external components before use, ensure that sufficient margins are in place by taking
into account variations in the external components themselves as well as the LSI regarding both static and transient
characteristics.
(3) Absolute maximum ratings
Operating or testing the IC over the maximum ratings may damage the part itself as well as peripheral components.
Therefore, please ensure that the specifications are never exceeded. In addition, implementation of fuses or other physical
safety measures is recommended.
(4) V
EE
potential
Ensure that the V
EE
pin voltage is at the lowest potential and that no other pin is at a lower voltage, including transient
phenomena.
(5) Thermal design
Implement thermal designs that take into account the power dissipation under actual operating conditions.
(6) Shorts between pins and erroneous installation
Incorrect mounting may damage the IC. In addition, the presence of foreign particles between the pins, a pin and the
power supply, or a pin and GND may result in destruction.
(7) Operation in a strong magnetic field
Operation in a strong magnetic field may cause malfunction.
(8) Serial control
The wiring pattern of the CL and DA terminals should be routed so as not to cause interference with the analog signal
related lines.
(9) Power ON/OFF
(a) During power ON/OFF a shock sound will be generated. Therefore, use the MUTE function.
(b) When turning ON the power supplies, V
EE
and V
CC
should either be powered on simultaneously, or V
EE
first,
followed by V
CC
, since if V
CC
is started up first, an excessive current may pass V
CC
through to V
EE
.
(10) Function switching
For functions except the Master Volume, Treble and Bass controls, use of the MUTE function is recommended.
(11) Port power supply
The port power supply should be turned ON following V
CC
and V
EE
. If the port is not used, the port power supply must be
connected to V
EE
.
