- 您现在的位置：买卖IC网 > PDF目录381694 > D1723GF (NEC Corp.) PLL FREQUENCY SYNTHESIZER AND CONTROLLER FOR FM/MW/LF TUNER CAR AUDIO PDF资料下载
参数资料
| 型号： | D1723GF |
| 厂商： | NEC Corp. |
| 英文描述： | PLL FREQUENCY SYNTHESIZER AND CONTROLLER FOR FM/MW/LF TUNER CAR AUDIO |
| 中文描述： | 锁相环频率合成器和控制器的调频/中波/低频调谐器汽车音响 |
| 文件页数： | 13/80页 |
| 文件大小： | 1590K |
| 代理商： | D1723GF |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页当前第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页
13
μ
PD1723GF-013,
μ
PD1723GF-213
PIN NAME
PIN No.
SYMBOL
Beep output pin when momentary key pressed. A 2.25
kHz and 50 % duty square wave is output for approx.
40 ms. This time is equal to the premuting time.
When a momentary key is pressed and the state of the
LCD panel display or output port is changed (valid key)
and at the end of 5 seconds hold during preset memory
scan and scan operations, a beep is output.
To disable the beep, float (leave open) this pin.
The beep output is also used at SK alarm at DK standby.
LCD panel segment signal output (pins 28 to 55) and
key matrix key source signal output (pins 40 to 55)
pins.
56-dot display is performed at the LCD panel by matrix
with the COM
1
pin (pin 56) and COM
2
pin (pin 57).
Since LCD
15
/KS
15
(pin 40) to LCD
0
/KS
0
(pin 55) share the
key source signal and LCD segment signal, to use them
as key source signals, a reverse current prevention
diode is necessary. For the connection method, see
1.3
“Key Matrix Connection”
and
6 “Application Circuits”.
Common signal output to LCD panel.
56-dot display is performed at the LCD panel by matrix
with LCD
27
(pin 28) to LCD
0
/KS
0
(pin 55).
Key matrix key return signal input pin.
Since the key source signal output is shared with the
LCD segment signal, do not connect a pull-down resis-
tor to this pin.
DESCRIPTION
OUTPUT
TYPE
BEEP
27
Beep output
CMOS
pushpull
LCD segment
and key
source
output
CMOS
pushpull
56
57
LCD common
signal output
COM
1
COM
2
CMOS
pushpull
Input
K
3
to
K
0
59
to
62
Key return
signal input
LCD
27
to
LCD
16
LCD
15
/KS
15
to
LCD
0
/KS
0
28
to
39
40
to
55
相关PDF资料 |
PDF描述 |
|---|---|
| D1758 | Medium Power Transistor 32V, 2A |
| D18754EJ1V0DS00 | MOS FIELD EFFECT TRANSISTOR |
| D1950 | NPN SILICON EPITAXIAL TRANSISTOR POWER MINI MOLD |
| D1990 | SERIAL I/O CALENDAR & CLOCK CMOS LSI |
| D2364 | READ ONLY MEMORY 8192 WORDS, 8BITS/WORD |
相关代理商/技术参数 |
参数描述 |
|---|---|
| D1723MG | 制造商:PANDUIT 制造商全称:PANDUIT CORP. 功能描述:ADJUSTABLE SLIDE DRAWER |
| D-1723-MG | 功能描述:机架和机柜配件 DWR 16.56X6.31X19.18 RoHS:否 制造商:Bivar 产品:Rack Accessories 面板空间: 颜色:Black |
| D1723WH | 制造商:PANDUIT 制造商全称:PANDUIT CORP. 功能描述:ADJUSTABLE SLIDE DRAWER |
| D-1723-WH | 功能描述:机架和机柜配件 DWR 16.56X6.31X19.18 RoHS:否 制造商:Bivar 产品:Rack Accessories 面板空间: 颜色:Black |
| D172A4PJ80 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
发布紧急采购，3分钟左右您将得到回复。