參數(shù)資料
型號： 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)： 61/80頁
文件大小： 1590K
代理商： UPD1723GF-213
61
μ
PD1723GF-013,
μ
PD1723GF-213
3.6
DESCRIPTION OF DISPLAYS
Description
Display
Indicates that the device is on the VF band.
Indicates that the SK signal is input.
It lights when the SK switch is turned on at the FM and VF bands.
Indicates that a STEREO signal is input.
It lights when the ST pin (pin 64) becomes Low on the FM and VF bands.
However, it does not light in the MONO mode.
Indicates that the device is in the MONORAL mode.
When the
key is pressed on the FM and VF bands, the display is inverted.
High level is output from the MONO/NR
2
pin (pin 18) while this display is lit.
It is invalid on the MW and LW bands.
Indicates that the device is in the LOCAL mode.
When AUTOLOC = 0, when the
key is pressed in a radio mode (FM, MW, LW
bands), the display is inverted.
When AUTOLOC = 1, this display lights during autotuning local search.
High level is output from the LOC pin (pin 10) during autotuning while this display is lit.
Indicates that the device is in the LOUDNESS state.
When the
key is pressed in the radio, tape, or CD mode, this display is
inverted.
High level is output from the LOUD pin (pin 19) while this display is lit.
Indicates that the device is in the METAL state.
When the
High level is output from the MTL pin (pin 21) while this display is lit.
function key is pressed in the tape mode, this display is inverted.
Indicates that the device is in the NR
1
(Noise Reduction) state.
When the device is placed into the NR
1
state by
function key in the tape mode,
this display lights.
High level is output from the NR
1
pin (pin 22) while this display is lit.
Indicates that the device is in the NR
2
(Noise Reduction) state.
The NR
2
function can be used with the initialize diode ENNR
2
switch.
When the device was placed into the NR
2
state by
function key in the tape
mode, this display lights.
High level is output from the MONO/NR
2
pin (pin 18) while this display is lit.
Lights in the DK standby and DK ON modes in the tape/CD mode.
Indicates the direction of tape travel.
In the tape mode, this display indicates the tape direction according to the state of the RL
switch. If the FF switch is ON, this display flashes. For more information, see the description
of each pin.
MONO
VF
SK
ST
MONO
LOC
LOUD
MTL
NR
1
NR
2
DKSTBY
METAL
NR
NR
LOC
LOUD
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