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參數(shù)資料
| 型號(hào)： | ZL49011DAA |
| 廠商： | ZARLINK SEMICONDUCTOR INC |
| 元件分類： | 信令電路 |
| 英文描述： | Wide Dynamic Range DTMF Receiver |
| 中文描述： | TELECOM, DTMF SIGNALING CIRCUIT, PDIP8 |
| 封裝： | PLASTIC, MS-001BA, DIP-8 |
| 文件頁數(shù)： | 6/14頁 |
| 文件大小： | 353K |
| 代理商： | ZL49011DAA |
ZL49010/1, ZL49020/1, ZL49030/1
Data Sheet
6
Zarlink Semiconductor Inc.
Applications
The circuit shown in Figure 3 illustrates the use of a ZL4902x in a typical receiver application. It requires only a
coupling capacitor (C1) and a crystal or ceramic resonator (X1) to complete the circuit.
The ZL490x0 is designed for user who wishes to tailor the guard time for specific applications. When a DTMF
signal is present, the ESt pin will go high. An external microcontroller monitors ESt in real time for a period of time
set by the user. A guard time algorithm must be implemented such that DTMF signals not meeting the timing
requirements are rejected. The ZL490x1 uses an internal counter to provide a preset DTMF validation period. It
requires no external components. The DStD output high indicates that a valid DTMF digit has been detected.
Figure 3 - Application Circuit for ZL4902x
DTMF/CP Input
C1
X1
1
2
3
4
8
7
6
5
INPUT
OSC2
OSC1
V
SS
V
DD
ESt/DStD
ACK
SD
V
DD
COMPONENTS LIST:
C
1
= 0.1
μ
F
±
10 %
X1 = Crystal or Resonator (3.579MHz)
To microprocessor or
microcontroller
ZL4902x
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ZL49020 | CAP .012UF 100V PPS FILM 1913 5% |
| ZL49020DAA | Wide Dynamic Range DTMF Receiver |
| ZL49021 | CAP .12UF 100V PPS FILM 2820 5% |
| ZL49030 | CAP .015UF 100V PPS FILM 1913 2% |
| ZL49030DCA | Wide Dynamic Range DTMF Receiver |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ZL49011DAA1 | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Wide Dynamic Range DTMF Receiver |
| ZL49020 | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Wide Dynamic Range DTMF Receiver |
| ZL49020DAA | 制造商:Microsemi Corporation 功能描述:DTMF RX 3.579MHZ 5V 8PDIP - Bulk |
| ZL49020DAA1 | 制造商:Microsemi Corporation 功能描述:DTMF RX 3.579MHZ 5V 8PDIP - Rail/Tube 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC RECEIVER DTMF 16PAIR 8PDIP 制造商:Microsemi Corporation 功能描述:IC RECEIVER DTMF 16PAIR 8PDIP |
| ZL49021 | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Wide Dynamic Range DTMF Receiver |
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