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參數(shù)資料
| 型號： | MT8840-1 |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | ISO2-CMOS Data Over Voice Modem |
| 中文描述： | ISO2全CMOS數(shù)據(jù)超過語音調(diào)制解調(diào)器 |
| 文件頁數(shù)： | 5/8頁 |
| 文件大?。?/td> | 56K |
| 代理商： | MT8840-1 |
ISO
2
-CMOS
MT8840
5-7
Figure 5 - Smart Telephone Set Block Diagram
Figure 6 - Crystal Oscillator Connections for Driving Multiple MT8840s
Tx
Rx
Summing
Circuit
Telephone
line
MT8840
Micro-
processor
UART
Tx Data
Rx Data
Low-
Pass
Filter
Handset
(Optional)
2W/4W
Converter
When a single crystal is shared among a number of MT8840 devices, OSC1 and OSC2 should be a.c. coupled with a 1000
pF capacitor as shown above. This capacitor is not needed between the device with the crystal and the first driven device.
A capacitor should be used in the first stage whenever such a chain of devices is driven from a clock instead of a crystal. A
33pF capacitor should be connected between OSC1 and VSS to compensate for the load on OSC2.
V
DD
V
SS
OSC1
OSC2
MT8840
C=33pF
MT8840
OSC1
OSC2
C=1000pF
MT8840
OSC1
OSC2
C=1000pF
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MT8840AE | ISO2-CMOS Data Over Voice Modem |
| MT8840 | ISO2-CMOS Data Over Voice Modem |
| MT8840AS | ISO2-CMOS Data Over Voice Modem |
| MT884 | () |
| MT8860 | DTMF DECODER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MT8840AE | 制造商:Rochester Electronics LLC 功能描述: 制造商:MITEL / ZARLINK 功能描述: 制造商:Zarlink Semiconductor Inc 功能描述: |
| MT8840AS | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:ISO2-CMOS Data Over Voice Modem |
| MT8841 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:CMOS Calling Number Identification Circuit |
| MT8841AE | 制造商:Mitel Networks Corporation 功能描述:CALLER NUMBER ID CIRCUIT, 16 Pin, Plastic, DIP |
| MT8841AN | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:CMOS Calling Number Identification Circuit |
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