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參數(shù)資料
| 型號： | ZL49031DDB |
| 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, PDSO20 |
| 封裝： | 5.30 MM, MO-150AE, SSOP-20 |
| 文件頁數(shù)： | 1/14頁 |
| 文件大小： | 353K |
| 代理商： | ZL49031DDB |
1
Zarlink Semiconductor Inc.
Zarlink, ZL and the Zarlink Semiconductor logo are trademarks of Zarlink Semiconductor Inc.
Copyright 2003, Zarlink Semiconductor Inc. All Rights Reserved.
Features
Wide dynamic range (50dB) DTMF Receiver
Call progress (CP) detection via cadence
indication
4-bit synchronous serial data output
Software controlled guard time for ZL490x0
Internal guard time circuitry for ZL490x1
Powerdown option (ZL4901x & ZL4903x)
3.579MHz crystal or ceramic resonator (ZL4903x
and ZL4902x)
External clock input (ZL4901x)
Guarantees non-detection of spurious tones
Applications
Integrated telephone answering machine
End-to-end signalling
Fax Machines
Description
The ZL490xx is a family of high performance DTMF
receivers which decode all 16 tone pairs into a 4-bit
binary code. These devices incorporate an AGC for
wide dynamic range and are suitable for end-to-end
signalling. The ZL490x0 provides an early steering
(ESt) logic output to indicate the detection of a DTMF
signal and requires external software guard time to
validate the DTMF digit. The ZL490x1, with preset
internal guard times, uses a delay steering (DStD)
logic output to indicate the detection of a valid DTMF
digit. The 4-bit DTMF binary digit can be clocked out
synchronously at the serial data (SD) output. The SD
pin is multiplexed with call progress detector output. In
the presence of supervisory tones, the call progress
September 2003
Ordering Information
ZL49010DAA
ZL49011DAA
ZL49020DAA
ZL49021DAA
ZL49030DCA
ZL49030DCB
ZL49030DDA
ZL49030DDB
ZL49031DCA
ZL49031DCB
ZL49031DDA
ZL49031DDB
8 Pin PDIP
8 Pin PDIP
8 Pin PDIP
8 Pin PDIP
18 Pin SOIC
18 Pin SOIC
20 Pin SSOP
20 Pin SSOP Tape & Reel
18 Pin SOIC
18 Pin SOIC
20 Pin SSOP
20 Pin SSOP
Tubes
Tubes
Tubes
Tubes
Tubes
Tape & Reel
Tubes
Tubes
Tape & Reel
Tubes
Tape & Reel
-40
°
C to +85
°
C
ZL49010/1, ZL49020/1, ZL49030/1
Wide Dynamic Range DTMF Receiver
Data Sheet
Figure 1 - Functional Block Diagram
VDD
VSS
OSC2
1.
ZL49010/1 and ZL49030/1 only.
2.
ZL49020/1 and ZL49030/1 only.
3.
ZL490x1 only.
Voltage
Bias Circuit
AGC
Anti-
alias
Filter
High
Group
Filter
Low
Group
Filter
Steering
Circuit
Digital
Detector
Algorithm
Code
Converter
and
Latch
Digital
Guard
Time
3
Parallel to
Serial
Converter
& Latch
Mux
Energy
Detection
Oscillator
and
Clock
Circuit
To All Chip Clocks
Dial
Tone
Filter
ESt
or
DStD
ACK
SD
1
2
PWDN
OSC1
(CLK)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ZL49031DDE1 | 制造商:Microsemi Corporation 功能描述: 制造商:Microsemi Corporation 功能描述:PB FREE WIDE DYN RAMGE DTMF RCVR 3.58MHZ - Rail/Tube 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC RECEIVER DTMF 16PAIR 20SSOP 制造商:Microsemi Corporation 功能描述:IC RECEIVER DTMF 16PAIR 20SSOP |
| ZL49031DDF1 | 制造商:Microsemi Corporation 功能描述:PB FREE WIDE DYN RANGE DTMF RCVR 3.58MHZ - Tape and Reel |
| ZL49170DCF1 | 制造商:Microsemi Corporation 功能描述:PB FREE DTMF RECEIVER SOIC |
| ZL49200 | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Dual Channel SLIC |
| ZL49200MDC | 制造商:Microsemi Corporation 功能描述:SLIC 2CH 55DB 27MA 5V 38PIN SIL - Trays |
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