欢迎访问ic37.com |
会员登录 免费注册
发布采购

EM91450D 参数 Datasheet PDF下载

EM91450D图片预览
型号: EM91450D
PDF下载: 下载PDF文件 查看货源
内容描述: 与LCD接口和I.P.P.音频/脉冲拨号器检测功能 [TONE/PULSE DIALER WITH LCD INTERFACE AND I.P.P. DETECT FUNCTION]
分类和应用: 脉冲
文件页数/大小: 24 页 / 215 K
品牌: EMC [ ELAN MICROELECTRONICS CORP ]
 浏览型号EM91450D的Datasheet PDF文件第2页浏览型号EM91450D的Datasheet PDF文件第3页浏览型号EM91450D的Datasheet PDF文件第4页浏览型号EM91450D的Datasheet PDF文件第5页浏览型号EM91450D的Datasheet PDF文件第6页浏览型号EM91450D的Datasheet PDF文件第7页浏览型号EM91450D的Datasheet PDF文件第8页浏览型号EM91450D的Datasheet PDF文件第9页  
TONE/PULSE DIALER WITH LCD INTERFACE
TONE/PULSE DIALER WITH LCD INTERFACE
AND I.P.P. DETECT FUNCTION
AND I.P.P. DETECT FUNCTION
EM91450 SERIES
EM91450 SERIES
GENERAL DESCRIPTION
The EM91450 is a series of tone/pulse switchable dialers that is composed of T/P dialer. The EM91465 provide
modern LCD driver's series data output port, which can display modern function operating icons. The
EM91450 series provide 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, ring detector and SDO (Serial Data Output) functions are provided
in advance version. 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 and modern function operating icons
can be displayed on LCD screen with LCD driver (EM32100 or EM32117 ). The EM91450 has a special I.P.
P. detect function (Illegal Parallel Phone Detect) can prevent the illegal connect external Phone. The I.P.P. will
detect the illegal user. When illegal user pickup phone, the function will alarm and send the alarm signal to the
telephone line to interfer the illegal dialing.
FEATURES
• I.P.P. detect function prevents the illegal connect external phone.
• SDO function supports LCD driver and voice synthesizer to indicate dialing numbers and function operat-
ing icons.
• Lock function provides conventionality key lock and password lock operations.
• Ring detector is designed to prevent illegal dialing from pocket dialer.
• Line hold function is designed for stopping conversation temporality.
• 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.
• 13 set one touch or (3 set one touch and 10 set two 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
LNB
KT
HOLD
I.P.P.
EM91450A
EM91450B
EM91450C
EM91450D
Note : PDP = Pocket Dialer Prevented
: I.P.P. detect=Illegal Parallel Phone Detect.
* This specification are subject to be changed without notice.
LOCK
HF
SDO(LCD)
PDP
2.10.1999
1