參數(shù)資料
型號(hào)： EM91203B
廠商： ELAN Microelctronics Corp .
英文描述： TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE
中文描述： 音頻/脈沖開關(guān)的撥號(hào)器與LCD接口
文件頁(yè)數(shù)： 9/19頁(yè)
文件大小： 143K
代理商： EM91203B
EM91203 SERIES
TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE
9
* This specification are subject to be changed without notice.
10.1.1997
Keyboard debounce time
Key tone signal:
frequency
present duration
Pause time and pulse to tone
Tdb
-
20
-
ms
Fkt
Tkt
Tp
Tpt
Tf
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
600
30
3.6
2
600
100
80
300
300
20
10
40:60
33:66
800
500
-
-
160
2
-30
-
98
90
83
98
90
83
3.9
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Hz
ms
sec.
sec.
COL2=NR
COL2=R-Vss
Row3, Row4=NR, NR
Row3, Row4=NR, R-Vss
Row3, Row4=R-Vss, NR
Row3, Row4=R-Vss,R-Vss
Flash time
ms
Flash pause time
Pulse rate
Tfp
PSR
ms
pps
Row1 = R-Vdd
Row1 = R-Vss
Row2 = NR
Row2 = R-Vss
PSR = 10 pps
PSR = 20 pps
Vdtmf = 0.5 V
Vdd = 2.0V ~ 5.5V
Make/Break ratio
MBR
%
Inter-digit pause time
Tidp
ms
DTMF pin: sink current
DTMF signal DC level
DTMF signal: ac level
pre-emphase
distortion
load resistance
IoL
Vdc
Vdtmf
Twist
THD
ZL
-0.2
0.5
142
1
-
5
96
88
81
96
88
81
3.8
mA
Vdd
0.75
180 mVrms Row group
3
dB
-23
dB
-
K
100
92
ms
85
100
92
ms
85
4.1
ms
Column - Row
RL = 5 K
THD
<
23dB
Minimum tone duration
T
D
Memory dialing
Minimum inter-tone pause
Titp
Memory dialing
SDO every bit time
Tbit
Parameter
Sym.
Min.
Typ.
Max. Unit
Condition
ELECTRICAL CHARACTERISTIC
(Ambient temperature is 25
°
C, V
DD
=2.5V unless otherwise noted, all voltages referenced to Vss,Fosc=3.579545 MHz)
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
DTMF output frequency
(fosc = 3.579545 MHz)
Keyboard scan pin
ROW1 (f1)
ROW2 (f2)
ROW3 (f3)
ROW4 (f4)
COL1 (f5)
COL2 (f6)
COL3 (f7)
CCITT standard (Hz)
697
770
852
941
1209
1336
1477
Actual output (Hz)
699.1
766.2
847.4
947.9
1215.8
1331.6
1471.8
Deviation (%)
0.30
0.49
-0.53
0.73
0.56
-0.32
-0.35
相關(guān)PDF資料
PDF描述
EM91203BP TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE
EM91203C TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE
EM91203CK TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE
EM91210A TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE
EM91210AP TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
EM91203BP 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE
EM91203C 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE
EM91203CK 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE
EM91210 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE
EM91210A 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*