參數(shù)資料
型號: MT9075A
廠商: Mitel Networks Corporation
英文描述: E1 Single Chip Transceiver
中文描述: 素E1單芯片收發(fā)器
文件頁數(shù): 9/78頁
文件大?。?/td> 1008K
代理商: MT9075A
Preliminary Information
MT9075A
4-137
Figure 4 - Analog Line Interface
The template for the transmitted pulse, as specified in
G703, is shown in Figure 5. The nominal peak voltage
of a mark is 3 volts for 120
twisted pair applications
and 2.37 volts for 75
coax applications. The ratio of
the amplitude of the transmit pulses generated by TTP
and TRING is between 0.95 and 1.05.
Figure 5 - Pulse Template (G.703)
Transformer Recommendation
Table 1 shows a list of recommended transformers
for the MT9075A line interface.
Table 1 - Transformer Manufacturers and Part
Numbers
Timing Source
The MT9075A can use either a clock or crystal,
connecting to pins OSC1 and OSC2, as the
reference timing source.
Figure 6 shows a 20MHz clock oscillator, with 50ppm
tolerance, directly connected to the OSC1 pin of the
MT9075A.
Figure 6 - Clock Oscillator Circuit
Alternatively, a crystal oscillator may be used. A
complete oscillator circuit made up of a crystal,
resistors and capacitors is shown in Figure 7. The
crystal specification is as follows.
Frequency:
Tolerance:
Oscillation Mode:
Resonance Mode:
Load Capacitance:
Maximum Series Resistance:
Approximate Drive Level:
20MHz
50ppm
Fundamental
Parallel
32pF
35
1mW
TTIP
TRING
RTIP
RRING
1:2
1:1
2.4
*
0.68uF
* 2.4
resistors are only
required with 75
coax
2.4
*
120
/
75
MT9075A
Tx
Rx
269nS
244nS
194nS
219nS
488nS
Nominal Pulse
120
110
100
90
80
50
10
0
-10
-20
Percentage of
Nominal Peak
Manufacturer
For Tx
For Rx
Filtran
5721-1
5721-2
Pulse Engineering
PE-65351
PE-64934
Midcom
50027
50026
OSEC
02934/A
02935/A
MT9075A
OSC1
OSC2
(
open
)
20MHz
OUT
Vdd
GND
+
5V
.1
μ
F
相關PDF資料
PDF描述
MT9075AL E1 Single Chip Transceiver
MT9075AP E1 Single Chip Transceiver
MT9075BL E1 Single Chip Transceiver
MT9075BP E1 Single Chip Transceiver
MT9075B-1 E1 Single Chip Transceiver
相關代理商/技術參數(shù)
參數(shù)描述
MT9075AL 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:E1 Single Chip Transceiver
MT9075AP 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:E1 Single Chip Transceiver
MT9075B 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:E1 Single Chip Transceiver
MT9075B-1 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:E1 Single Chip Transceiver
MT9075BL 制造商:Microsemi Corporation 功能描述:FRAMER E1 5V 100MQFP - Trays