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參數(shù)資料
| 型號： | 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/脈沖開關(guān)的撥號器與LCD接口及雙音的旋律發(fā)電機(jī) |
| 文件頁數(shù)： | 1/24頁 |
| 文件大?。?/td> | 175K |
| 代理商： | EM91420D |
EM91420 SERIES
AND DUAL-TONE MELODY GENERATOR
1
* This specification are subject to be changed without notice.
10.1.1997
GENERAL DESCRIPTION
The EM91420 is a series of tone/pulse switchable dialers that is composed of T/P dialer and T/P dialer with
20-set memories. The EM91420 series provides necessary functions of telephone set for application in any
environment, such as Pulse dialing, Tone (DTMF) dialing, Handfree dialing, keying tone ,and lock functions.
The lock function is designed to inhibit toll dialing operation. Beside this, melody generator, ring detector and
SDO (Serial Data Output) functions are provided in advance version. Melody generator will output dual-tone
music in line hold duration. Ring detector can prevent illegal dialing from pocket dialer. The SDO is designed
to drive LCD driver and voice synthesizer. In this application, the dialing numbers can be displayed on LCD
screen with EM32100 ( or EM32116 ).
FEATURES
Tone/Pulse switchable.
Wide operating voltage from 2.0 V to 5.5 V.
Low operating current, 0.15 mA (Pulse) and 0.3 mA (Tone) typically.
Adding resistor on keyboard scan pin that can select many telephone specifications, such as : Pulse rate,
M/B ratio, Flash time, lock dialing functions.
SDO function supports LCD driver and voice synthesizer to indicate dialing numbers.
Line hold function is designed for stopping conversation temporality.
Melody generator provides music on hold function.
Lock function provides conventionality key lock and password lock operations.
Ring detector is designed to prevent illegal dialing from pocket dialer.
20-set three touch repertory memory, each one can hold data up to 16 digits.
A 32-digit LNB (last number) redial memory.
Keytone function provides rapidly keying recognition.
Handfree function provides on-hook dialing and speakerphone application.
Pause and P-T time are fixed to 3.6 seconds.
Tone duration and inter-tone pause time are fixed to 98 ms.
Using 3.579545 MHz crystal or ceramic resonator.
Package forms: PDIP, skinny.
ORDERING INFORMATION
Versions list and function outline
VERSION
EM91420A
EM91420B
EM91420C
EM91420D
Note : PDP = Pocket Dialer Prevented
LNB
√
√
√
√
KT
√
√
√
√
HOLD(music)
√
√
√
√
LOCK
√
√
√
√
HF
SDO(LCD)
PDP
√
√
√
√
√
√
TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE
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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