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参数资料
| 型号： | LC7232N-8819 |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP80 |
| 封装： | QFP-80 |
| 文件页数： | 7/23页 |
| 文件大小： | 219K |
| 代理商： | LC7232N-8819 |
PHONO key
When this key is pressed, data is sent to the source selector (LC7821N), and the source is switched to the record
player. The display then displays “PHO”.
7.
FUNC
This is a function selection key. Each time it is pressed the function switches as follows.
When ANTIPHON = 0:
TUNER
CD
TAPE
AUX
PHONO
When ANTIPHON = 1:
TUNER
CD
TAPE
AUX
8.
MO/ST
This key is only accepted when the FM band is selected. It switches the MO/ST port output.
9.
MUTE
Each time this key is pressed the states of the mute indicator and the mute output are inverted. However, note that if
this key is pressed to clear the muting function while band switching or seeking, although the key will be accepted
and the muting indicator turned off, the muting function itself will not be cleared.
Pressing any key other than the clock related keys will clear the muting function if the muting function is enabled.
Key
Indicator state
Output state
MUTE
On
H
Off
L
10. BASS
This key controls the super-bass function. Each time this key is pressed the states of the bass indicator and the bass
output are inverted. Also, loudness switching data is sent to the electronic volume control (LC7535).
Key
Indicator state
Output state
Transmitted data
BASS
On
H
Loudness on
Off
L
Loudness off
11. POWER
This key controls the system power. Each time the key is pressed the POWOUT output state is inverted. When the
power is on, the frequency and the name of the current function are displayed, and when the power is off, if the clock
is enabled the clock is displayed, and if the clock is disabled, the display is turned off.
12. V-UP , V-DOWN
These are the electronic volume up and down keys, and they transmit data to the electronic volume IC (LC7535).
Each time one of these keys is pressed the volume is increased or decreased by 1 dB, and if one of these keys is held
down for over 500 ms, the volume is increased or decreased at 1 dB every 150 ms. While these keys are held down, a
high level is output from the VUP or VDOWN port.
No. 4643-15/23
LC7232N-8819
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