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參數(shù)資料
| 型號(hào)： | MT8979 |
| 廠商： | Mitel Networks Corporation |
| 元件分類： | 通信及網(wǎng)絡(luò) |
| 英文描述： | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| 中文描述： | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| 文件頁數(shù)： | 2/30頁 |
| 文件大?。?/td> | 190K |
| 代理商： | MT8979 |
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MT8979
ISO-CMOS
4-88
Figure 2 - Pin Connections
Pin Description
Pin #
Name
Description
DIP
PLCC
1
2
TxA
Transmit A (Output):
A split phase unipolar signal suitable for use with TxB and an
external line driver and transformer to construct the bipolar line signal.
2
3
TxB
Transmit B (Output
:) A split phase unipolar signal suitable for use with TxA and an
external line driver and transformer to construct the bipolar line signal.
3
5
DSTo
Data ST-BUS (Output)
: A 2048 kbit/s serial output stream which contains the 30 PCM or
data channels received from the CEPT line.
4
4
NC
No Connection.
5
9
RxA
Receive A (Input)
: Received split phase unipolar signal decoded from a bipolar line
receiver.
6
10
RxB
Receive B (Input)
: Received split phase unipolar signal decoded from a bipolar line
receiver.
7
11
RxD
Received Data (Input)
: Input of the unipolar data generated from the line receiver. This
data may be NRZ or RZ.
8
13
CSTi1
Control ST-BUS Input #1
: A 2048 kbit/s stream that contains channel associated
signalling, frame alignment and diagnostic functions.
9
NC
No Connection.
10
NC
No Connection.
11
17
ADI
Alternate Digit Inversion (Input)
: If this input is high, the CEPT timeslots which are
specified on CSTi0 as voice channels are ADI coded and decoded. When this bit is low it
disables ADI coding for all channels. This feature allows either ADI or non-ADI codecs to
be used on DSTi and DSTo.
12
19
CSTi0
Control ST-BUS Input #0
: A 2048 kbit/s stream that contains 30 per channel control
words and two Master Control Words.
44 PIN PLCC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
28
27
26
25
24
23
22
21
28 PIN PDIP
TxA
TxB
DSTo
NC
RxA
RxB
RxD
CSTi1
NC
NC
ADI
CSTi0
E8Ko
VSS
VDD
IC
F0i
E2i
NC
RxMF
TxMF
C2i
NC
DSTi
NC
CSTo
XSt
XCtl
V
D
T
T
I
N
F
N
E
NC
RxMF
TxMF
NC
NC
C2i
NC
NC
NC
NC
NC
NC
NC
RxA
RxB
RxD
NC
CSTi1
NC
NC
NC
ADI
V
C
E
N
V
X
N
C
N
D
X
V
1
6 5 4 3 2
7
8
9
10
11
12
13
14
15
16
17
4443424140
39
38
37
36
35
34
33
32
31
30
29
23
1819202122
2425262728
N
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MT8979 | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| MT8979AE | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| MT8979AP | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| MT8979AC | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| MT8980D | Digital Switch(數(shù)字開關(guān)（在微處理器控制下，轉(zhuǎn)換PCM編碼控制的話音或數(shù)據(jù)）) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MT8979AC | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:ISO-CMOS ST-BUS⑩ FAMILY CEPT PCM 30/CRC-4 Framer & Interface |
| MT8979AE | 制造商:Microsemi Corporation 功能描述: 制造商:Zarlink Semiconductor Inc 功能描述: |
| MT8979AE1 | 制造商:Microsemi Corporation 功能描述:FRAMER CRC-4/PCM 30 5V 28PDIP - Rail/Tube 制造商:Zarlink Semiconductor Inc 功能描述:FRAMER CRC-4/PCM 30 5V 28PDIP - Rail/Tube |
| MT8979AP | 制造商:MITEL 功能描述: |
| MT8979AP1 | 制造商:Microsemi Corporation 功能描述:FRAMER CRC-4/PCM 30 5V 44PLCC - Rail/Tube 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC FRAMER/INTERFACE CEPT 44PLCC 制造商:Microsemi Corporation 功能描述:IC FRAMER/INTERFACE CEPT 44PLCC |
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