參數(shù)資料
型號(hào)： AN12943A
廠商： PANASONIC CORP
元件分類： 消費(fèi)家電
英文描述： Audio signal processing IC for notebook PC
中文描述： SPECIALTY CONSUMER CIRCUIT, PDSO56
封裝： 0.300 INCH, PLASTIC, HSOP-56
文件頁(yè)數(shù)： 19/32頁(yè)
文件大?。?/td> 501K
代理商： AN12943A
19
SDC00057AEB
AN12943A
Technical Data (continued)
y
Control sequence at power on/off
At power on/off, as for the timing of each control pin, it much more recommends a procedure below the purpose of the pop noise
measure in changing.
Moreover, this IC builds in a charge pump circuit and constitutes the substrate potential in IC. In order for substrate potential to be
in a high impedance state and to prevent unusual operation before starting of a power supply, please do not impress voltage to each
mode control pin.
Note) The characteristics listed above are reference values based on the IC design and are not guaranteed.
V
CC
_SP
(Pin 1, pin 56)
V
CC
(Pin 16)
Standby control
(Pin 31)
Speaker power save control
(Pin 47, pin 50)
Each mode control
Power on
Power off
As for the occurrence of
time-lag between V
CC
-on and
V
CC
_SP-on, no problem.
As for the occurrence
of time-lag between
V
CC
-off and V
CC
_SP-
off, no problem.
Please carry out standby
release after a power
supply on for the measure
aganist a pop noise.
Please carry out standby on
after a power supply off for
the measure aganist a pop
noise.
Please rise to simultaneous
with a power supply on, or
the back.
Please bring down to
simultaneous with a power
supply off, or a front.
Control timing
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