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)： 57/80頁
文件大?。?/td> 1590K
代理商： UPD1723GF-213
57
μ
PD1723GF-013,
μ
PD1723GF-213
2.3
DESCRIPTION OF EACH MODE
Description
Mode
Backup mode.
When the NOCLK switch is set to no-clock, low consumption current (400 nA max.) backup
is possible.
When clock is selected, the device is set to the clock count mode. In the clock mode, the
maximum consumption current is 500
μ
A.
When the CE pin is High level and the TPSET and CDSET switches are OFF, the device is
set to the radio mode.
When the CE pin is High level and the TPSET switch is ON and the CDSET switch is OFF,
the device is set to the tape mode.
When the CE pin is High level and the CESET switch is ON, the device is set to the CD mode.
When the VF band is received in the radio mode and the mode is switched to the tape or
CD mode by TPSET or CDSET switch, the device is set to the DK standby mode.
The device is also set to the DK standby mode by pressing the
key in the tape
or CD modes.
In the DK standby mode, VF band tuning operation is enabled.
When the DK switch is set to ON in the DK standby mode, the device enters the DK ON
mode.
In the DK ON mode, radio muting (RDMUTE pin) is turned off and audio muting (AMUTE
pin) is turned on.
When the tape mode is set by TPSET switch when the radio monitor mode is ON
by
in the radio mode, the device enters the radio monitor mode.
The radio monitor mode is also set by pressing the
key in the tape and CD
modes.
In the radio monitor mode, normal tuning operation is possible.
In the radio monitor mode, radio muting (RDMUTE pin) is turned off and audio muting
(AMUTE pin) is turned on.
NOCLK = 0
Only clock display is performed.
Clock adjustment is also possible.
NOCLK = 1
Function is disabled.
However, since the CE pin is High level, the consumption current is 500
μ
A TYP.
CE = Low
Radio
Tape
CD
DK standby
D K
Radio monitor
Clock
VF
RDMONI
0
RDMONI
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