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參數(shù)資料
| 型號(hào)： | CD22202 |
| 廠商： | Intersil Corporation |
| 英文描述： | 5V Low Power DTMF Receiver |
| 中文描述： | 5V的低功耗雙音多頻接收器 |
| 文件頁(yè)數(shù)： | 6/6頁(yè) |
| 文件大?。?/td> | 49K |
| 代理商： | CD22202 |
4-250
All Intersil semiconductor products are manufactured, assembled and tested under
ISO9000
quality systems certification.
Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design and/or specifications at any time without
notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate
and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which
may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see web site
http://www.intersil.com
CD22202, CD22203
FIGURE 6. CD22203 DTMF RECEIVER WITH GUARD TIME CIRCUIT TO PROVIDE EXCEPTIONAL TALK-OFF PERFORMANCE
D1
EN
IN1633
XEN
ANALOG IN
D2
D4
D8
CLRDV
DV
ATB
XIN
XOUT
V
DD
V
SS
V
SS
HEX/B28
ED
9
8
7
6
5
4
3
2
1
10
11
12
13
14
15
16
17
18
+5V
10
μ
F
R
2
≈
240K
(55ms)
IN4148
C
2
0.15
μ
F
R
5
1.8M
R
6
100K
ENABLE
INPUT
1
/
3
CD74HC04
(BUFFERS OPTIONAL)
DV
OUT
R
4
33K
R
≈
390K
C
1
4700pF
R
1
1M
3.58
MHz
AUDIO
IN
D8
HEX DATA OUT
D4 D2 D1
Handling
All inputs and outputs of CMOS devices have a network for
electrostatic protection during handling. Recommended han-
dling practices for CMOS devices are described in
ICAN-6525 “Guide to Better Handling and Operation of
CMOS Integrated Circuits”.
Operating
Operating Voltage
During operation near the maximum supply voltage limit,
care should be taken to avoid or suppress power supply
turn-on and turnoff transients, power supply ripple, or ground
noise; any of these conditions must not cause V
DD
- V
SS
to
exceed the absolute maximum rating.
Input Signals
To prevent damage to the input protection circuit, input sig-
nals should never be greater than V
DD
nor less than V
SS
.
Input currents must not exceed 20mA even when the power
supply is off.
Unused Inputs
A connection must be provided at every input terminal. All
unused input terminals must be connected to either V
DD
or
V
SS
, whichever is appropriate.
Output Short Circuits
Shorting of outputs to V
DD
or V
SS
may damage CMOS
devices by exceeding the maximum device dissipation.
Operating and Handling Considerations
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| CD22202E | 5V Low Power DTMF Receiver |
| CD22203 | 5V Low Power DTMF Receiver |
| CD22204 | 5V Low Power Subscriber DTMF Receiver |
| CD22204E | R8C Series, 23 Group, WDTO 48P6Q-A |
| CD22301 | Monolithic PCM Repeater |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CD22202_02 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:5V Low Power DTMF Receiver |
| CD22202E | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:5V Low Power DTMF Receiver |
| CD22203 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:5V Low Power DTMF Receiver |
| CD22203E | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:5V Low Power DTMF Receiver |
| CD22203ES2497 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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