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參數(shù)資料
| 型號： | MT8840 |
| 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)： | 2/8頁 |
| 文件大?。?/td> | 56K |
| 代理商： | MT8840 |
MT8840
ISO
2
-CMOS
5-4
Figure 2 - Pin Connections
Pin Description
Pin #
Name
Description
1
DET
Demodulator detection level adjust input (Analog). Internal resistor divider applies
2.36V in open circuit condition. Connection of external resistor will vary detect level.
External AGC time constant adjust input (Analog). Connect external capacitor to V
SS
.
Modulated receive signal input (Analog). Biased at V
Ref
.
Receive enable input (Digital) with internal pull up. Active high.
Self-test mode select input (Digital) with internal pull down. Active high.
Internal reference supply voltage input (Analog) .
Modulated transmit carrier output (Analog).
Transmit data input (Digital).
Negative power supply.
Tone caller center frequency adjust input (Analog).
Tone caller output (Digital).
Mute tone caller input (Digital) with internal pull down. Active high.
Enable tone caller input (Digital) with internal pull down. Active high.
32 kHz data strobe output (Digital).
Clock Input
Clock Output to drive external devices.
Receive data output (Digital). Synchronized to CK32.
Positive power supply.
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
CRx
RxI
RxE
LOOP
V
Ref
TxO
TxDI
V
SS
FATC
TCO
MTC
ETC
CK32
OSC1
OSC2
RxDO
V
DD
3.579545 MHz crystal connected between
these pins completes internal oscillator.
1
2
3
4
5
6
7
8
9
10
18
17
16
15
14
13
12
11
DET
CRx
Rxl
RxE
LOOP
VRef
TxO
TxDI
VSS
VDD
OSC2
OSC1
CK32
ETC
MTC
TCO
FATC
18 PIN PLASTIC DIP/SOIC
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MT8840AS | ISO2-CMOS Data Over Voice Modem |
| MT884 | () |
| MT8860 | DTMF DECODER |
| MT8860XC | DTMF DECODER |
| MT8860XE | DTMF DECODER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MT8840-1 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:ISO2-CMOS Data Over Voice Modem |
| 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 |
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