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參數(shù)資料
| 型號： | ZL49021 |
| 廠商： | Zarlink Semiconductor Inc. |
| 英文描述： | CAP .12UF 100V PPS FILM 2820 5% |
| 中文描述： | 寬動態(tài)范圍的DTMF接收器 |
| 文件頁數(shù)： | 2/14頁 |
| 文件大?。?/td> | 353K |
| 代理商： | ZL49021 |
ZL49010/1, ZL49020/1, ZL49030/1
Data Sheet
2
Zarlink Semiconductor Inc.
detector circuit indicates the cadence (i.e., envelope) of the tone burst. The cadence information can then be
processed by an external microcontroller to identify specific call progress signals. The ZL4902x and ZL4903x can
be used with a crystal or a ceramic resonator without additional components. A power-down option is provided for
the ZL4901x and ZL4903x.
Figure 2 - Pin Connections
Pin Description
Pin #
4902x
1
2
3
Name
Description
4903x
2
4
6
4901x
1
-
3
INPUT
OSC2
OSC1
(CLK)
DTMF/CP Input.
Input signal must be AC coupled via capacitor.
Oscillator Output.
Oscillator/Clock Input.
This pin can either be driven by:
1)
an external digital clock with defined input logic levels. OSC2
should be left open.
2)
connecting a crystal or ceramic resonator between OSC1 and
OSC2 pins.
Ground.
(0V)
Serial Data/Call Progress Output.
This pin serves the dual function
of being the serial data output when clock pulses are applied after
validation of DTMF signal, and also indicates the cadence of call
progress input. As DTMF signal lies in the same frequency band as
call progress signal, this pin may toggle for DTMF input. The SD pin
is at logic low in powerdown state.
Acknowledge Pulse Input.
After ESt or DStD is high, applying a
sequence of four pulses on this pin will then shift out four bits on the
SD pin, representing the decoded DTMF digit. The rising edge of the
first clock is used to latch the 4-bit data prior to shifting. This pin is
pulled down internally. The idle state of the ACK signal should be
low.
Early Steering Output.
A logic high on ESt indicates that a DTMF
signal is present. ESt is at logic low in powerdown state.
9
11
4
5
4
5
V
SS
SD
13
6
6
ACK
15
7
7
ESt
(ZL490x0)
DStD
(ZL490x1)
Delayed Steering Output.
A logic high on DStD indicates that a
valid DTMF digit has been detected. DStD is at logic low in
powerdown state.
10
18
17
16
15
14
13
12
11
VDD
NC
NC
ESt/DStD
NC
ACK
NC
SD
NC
1
2
3
4
5
6
7
8
9
NC
INPUT
PWDN
OSC2
NC
OSC1
NC
NC
VSS
INPUT
PWDN
CLK
VSS
VDD
ESt/
DStD
ACK
SD
INPUT
OSC2
OSC1
VSS
VDD
ESt/
DStD
ACK
SD
ZL49010/1
ZL49020/1
ZL49030/1
8 PIN PLASTIC DIP
18 PIN PLASTIC SOIC
1
2
3
4
8
7
6
5
1
2
3
4
8
7
6
5
1
2
3
4
5
6
7
8
9
10
11
12
20
19
18
17
16
15
14
13
NC
NC
INPUT
PWDN
NC
NC
NC
OSC1
VSS
OSC2
20 PIN SSOP
NC
VDD
NC
ESt/DStD
NC
ACK
SD
NC
NC
ZL49030/1
NC
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ZL49030 | CAP .015UF 100V PPS FILM 1913 2% |
| ZL49030DCA | Wide Dynamic Range DTMF Receiver |
| ZL49030DCB | Wide Dynamic Range DTMF Receiver |
| ZL49031 | Wide Dynamic Range DTMF Receiver |
| ZL49031DDA | Wide Dynamic Range DTMF Receiver |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ZL49021DAA | 制造商:Microsemi Corporation 功能描述: |
| ZL49021DAA1 | 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 |
| ZL49030 | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Wide Dynamic Range DTMF Receiver |
| ZL49030DCA | 制造商:Microsemi Corporation 功能描述:DTMF RX 3.579MHZ 5V 18SOIC - Bulk |
| ZL49030DCB | 制造商:Microsemi Corporation 功能描述:DTMF RX 3.579MHZ 5V 18SOIC - Tape and Reel |
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