參數(shù)資料
型號(hào)： EM91420D
廠商： ELAN Microelctronics Corp .
英文描述： Oscillator; Frequency:1MHz; Frequency Tolerance:+/- 100 ppm; Load Capacitance:50pF; Crystal Terminals:PCB Thru Hole; Supply Voltage:5V; Mounting Type:Through Hole; Number of Pins:4
中文描述： 音頻/脈沖開(kāi)關(guān)的撥號(hào)器與LCD接口及雙音的旋律發(fā)電機(jī)
文件頁(yè)數(shù)： 17/24頁(yè)
文件大?。?/td> 175K
代理商： EM91420D
EM91420 SERIES
TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE
AND DUAL-TONE MELODY GENERATOR
17
* This specification are subject to be changed without notice.
10.1.1997
Figure 8. SDO operating timing
<Note>L=LSB,M=MSB, sT=START bit time, spT=STOP bit time
HF
HD
HF
HD
HF
HD
HD
HD
HD @
280
ms
Thdrdb
HKS
KEY IN
HFO
HDO
XMUTE
SDO
PO
MELODY
Hi-impedance
Figure 10. Off-Hook delay time
Tdly
"0" digit dialing time
0
5
HF
HFI
or
HKS
KEY
KT
OSC.
Hi-impedance
@ : It can be triggled by extension telephone set for hold function release
Figure 9. HF and HD operating timing
HKS
KEY IN
KT
SDO
Tdb
2
sT
sT b0
b1
b2
b3 b4
Tbit
b5 spT spT
0
1
0
1
0
0
0 0
0
1
L
M
Hi-impedance
相關(guān)PDF資料
PDF描述
EM91420 Tone/Pulse Switchable Dialer with LCD Interface and Dual-Tone Melody Generator(0.15mA（脈沖）/0.3mA（音調(diào)）工作電流的音調(diào)/脈沖可轉(zhuǎn)換的撥號(hào)器（帶LCD接口和雙音旋律發(fā)生器）)
EM91421 Tone/Pulse Switchable Dialer with LCD Interface and Dual-Tone Melody Generator(0.15mA（脈沖）/0.3mA（音調(diào)）工作電流的音調(diào)/脈沖可轉(zhuǎn)換的撥號(hào)器（帶LCD接口和雙音旋律發(fā)生器）)
EM91440BP TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE AND DUAL-TONE MELODY GENERATOR
EM91440DK TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE AND DUAL-TONE MELODY GENERATOR
EM91440A TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE AND DUAL-TONE MELODY GENERATOR
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
EM91420DK 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE AND DUAL-TONE MELODY GENERATOR
EM91440 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE AND DUAL-TONE MELODY GENERATOR
EM91440A 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE AND DUAL-TONE MELODY GENERATOR
EM91440A/B/C/D 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:Telephone Dialer Multi-Function Dialer
EM91440AP 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE AND DUAL-TONE MELODY GENERATOR
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