參數(shù)資料
型號(hào)： UPD1723GF-213
廠商： NEC Corp.
英文描述： PLL FREQUENCY SYNTHESIZER AND CONTROLLER FOR FM/MW/LF TUNER CAR AUDIO
中文描述： 鎖相環(huán)頻率合成器和控制器的調(diào)頻/中波/低頻調(diào)諧器汽車音響
文件頁數(shù)： 33/80頁
文件大?。?/td> 1590K
代理商： UPD1723GF-213
33
μ
PD1723GF-013,
μ
PD1723GF-213
RDMUTE Pin
Output
50
ms
40
ms
Within
2 sec.
375 to 500 ms
B
E
E
P
M6
(TP6)
M1
(TP1)
to
Key Operation
Display
Frequency or
Clock Display
Preset memory number of
pressed key and frequency
received last are displayed.
Key OFF
Preset memory number
of pressed key and called
frequency are displayed.
Key ON
When the same preset memory key is pressed while the current preset memory contents
are being received, nothing is performed. However, if the clock is being displayed, BEEP
is output when the key is released or after 2 seconds and the display switches to
frequency display. At this time, radio muting is not output.
If a key is pressed during the seek operation, the call operation is immediately performed
(2-second count is ignored).
When a
to
key is pressed and released within 2 sec-
onds, the preset memory contents at the time the key was released are called.
Function
Symbol
M2S
Description
When one of the key
to
is pressed for more than 2 sec-
onds, the preset memory corresponding to the pressed key is written.
At the end of writing to the preset memory, radio muting is output as acknowledgment.
M6
M1
(TP1)
M6
M1
(TP1)
When the same preset memory key is pressed while the current preset memory contents
are being received, nothing is performed. However, if the clock is being displayed, BEEP
is output and the display switches to frequency display. Radio muting is not output.
If a key is pressed during the seek operation, the call operation is immediately performed.
M1
(TP1)
M2
(TP2)
M3
(TP3)
M4
M5
M6
C
1
W
RDMUTE Pin
Output
50
ms
2 sec.
250 to 375 ms
B
E
E
P
M6
(TP6)
M1
(TP1)
to
Key Operation
Display
Frequency or
Clock Display
Preset memory number of
pressed key and frequency
received last are displayed.
Key On
40
ms
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