參數(shù)資料
型號(hào): LC7233N-8818
廠商: Sanyo Electric Co.,Ltd.
英文描述: Single-Chip PLL and Controller with LCD Driver(用于電子調(diào)諧的單片微控制器(帶LCD驅(qū)動(dòng)器和鎖相環(huán)電路 ))
中文描述: 單芯片PLL和控制器LCD驅(qū)動(dòng)(用于電子調(diào)諧的單片微控制器(帶液晶顯示驅(qū)動(dòng)器和鎖相環(huán)電路))
文件頁(yè)數(shù): 17/36頁(yè)
文件大小: 598K
代理商: LC7233N-8818
7. BAND/ILL1
This key switches the band as shown below when released within 1.5 seconds.
This function is valid when HOLD is high, PANEL IN is low and main power is on.
Holding this key down for more than 1.5 seconds inverts the output of the LC75853E/W S1 pin from low to high
or from high to low. Its initial state is the low level. This function is valid when HOLD is high, PANEL IN is low
and main power is on.
8. VF
Pressing this key in radio mode switches the LC7233N-8818 to FM band radio mode regardless of which band was
previously selected. The VF display is turned on and the BAND1 and BAND2 outputs go high. The SD pin is
checked 375 ms later (500 ms later if the previous band was the AM band) and after another 375 to 500 ms the SKIN
input is checked. If the input was low, the current frequency is held, and if high, an automatic SK station search is
started. When the input goes low, that frequency is held. (See the state transition diagram on page 18.)
The SK display is lit if SKIN is low, the mode is FM, and the LC7233N-8818 is set for European reception.
Note:
*
The state from the previous band.
Pressing the VF SEEK key causes the LC7233N-8818 to perform the operation shown in the table below based on
the VF mode and the SKIN signal state.
In tape or CD mode (when VF mode is off), the operation shown in the table below is performed based on the
SKIN and DKIN signal states.
FM1
(FM2)
(FM3)
MW
LW
No. 4743-17/36
LC7233N-8818
Key
Display state
Output state
BAND1
BAND2
VF
VF
Lit
H
H
Off
*
*
When the VF key is
pressed
When the SEEK key is
pressed
When, during a seek,
the seek key for the same
direction is pressed
When the VF key is
pressed during a seek.
VF
SKIN
(VF mode)
VF mode is turned on and
an SK station search
is started.
A normal station search
is started.
The LC7233N-8818 stops
at the frequency where
pressed.
VF mode is turned on and
an SK station search is
started.
Off
H
A normal station search
is started.
The LC7233N-8818 stops
at the frequency where
pressed.
VF mode is turned on and
an SK station search is
started.
Off
L
VF mode is turned on.
VF mode is turned off and
the LC7233N-8818 returns
to the state prior to entering
VF mode.
On
H/L
VF mode is turned off.
An SK station search is
started.
The seek continues.
SKIN
DKIN
Operation when VF mode is switched from off to on by pressing the VF
key in tape or CD mode
Mode
The LC7233N-8818 displays the frequency and starts an SKIN signal
seek up operation. The display reverts to tape or CD when a low level
SKIN signal frequency is found. If DKIN is low, operation
below is
performed.
H
H
TAPE mode
CD mode
The display remains in tape or CD display mode. If DKIN is low,
operation
below is performed.
If the diode matrix VF AUTORETUNE setting is 0, a retune operation is
performed if SKIN had been low for 25 seconds (checked every 25 ms).
The frequencies in M1 to M6 are checked for a high SKIN signal, and if
none is found, a seek up operation is performed.
L
H
TAPE mode
CD mode
L
L
The frequency is displayed and an ARI broadcast is started.
VF mode
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