參數(shù)資料
型號： MT90812
廠商： Mitel Networks Corporation
英文描述： Integrated Digital Switch (IDX)(集成數(shù)字開關(guān))
中文描述： 綜合數(shù)字交換機(jī)（IDX的）（集成數(shù)字開關(guān)）
文件頁數(shù)： 54/105頁
文件大?。?/td> 334K
代理商： MT90812
MT90812
Advance Information
50
21.0 Connection Memory Bits
Locations in the Connection Memory are associated with the local TDM output streams and the Expansion Bus
streams. It also determines whether individual output channels are in Message Mode, allows individual output
channel to go into a high-impedance state and specifies the gain control for the outgoing channels. Refer to
Section 5.2, “Data Memory and Connect Memory” for further description.
21.1
Connection Memory High
Bit
Name
Description
7-3
Channel
Attenuation
G4,G3, G2, G1,
G0
Defines gain from +3 to -27 dB in steps of 1dB, as well as -
channel
dB for the outgoing
2
Message Channel/
Conference
Inversion Bit
When 1, the contents of the corresponding location in Connection Memory Low are
output on the location’s channel. When 0, the contents of the corresponding
location in Connection Memory Low act as an address for the Data Memory and so
determine the source of the connection to the location’s channel and stream.
Conference Inversion Bit: (For Conference address locations 60-6E) The inversion
bit allows for every other channel in a conference to be inverted. This reduces noise
due to reflections and line impedance mismatch.
1
CST
(address
locations other
than 60-6E)
This bit is used to select minimum(low) or constant(high) delay, on a per channel
basis.
0
Output Enable
(address
locations other
than 60-6E)
If the ODE pin is high and bit 5 of the Control Register is 0, then this bit enables the
output driver for the location’s channel and stream. This allows individual channels
on individual streams to be made high-impedance, allowing switching matrices to
be constructed. A 1 enables the driver and a 0 disables it.
1-0
NS1-NS0
(for Conference
address locations
60-6E)
Channel Noise Suppression
00 = no noise suppression
01 = 9/4096 (A-Law), 9/8159 (u-Law)
10 = 16/4096 (A-Law), 16/8159 (u-Law)
11 = 32/4096 (A-Law), 32/8159 (u-Law)
7
6
5
4
3
2
1
0
MSG/
INV
G0
G1
G4
G2
G3
CST/
NS1
OE/
NS0
∞
0000 = +3 dB
0001 = +2 dB
0010 = +1 dB
0011 = 0 dB
0100 = -1 dB
0101 = -2 dB
0110 = -3 dB
0111 = -4 dB
1000 = -5 dB
1001 = -6 dB
1010 = -7 dB
1011 = -8 dB
1100 = -9 dB
1101 = -10 dB
1110 = -11 dB
1111 = -12 dB
10000 = -13dB
10001 = -14dB
10010 = -15dB
10011 = -16dB
10100 = -17dB
10101 = -18 dB
10110 = -19 dB
10111 = -20 dB
11000 = -21 dB
11001 = -22 dB
11010 = -23 dB
11011 = -24 dB
11100 = -25 dB
11101 = -26 dB
11110 = -27 dB
11111 = -
dB
∞
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參數(shù)描述
MT90812AL 制造商:Microsemi Corporation 功能描述:SWIT FABRIC 192 X 192 16.384MBPS 5V 64MQFP - Trays 制造商:Zarlink Semiconductor Inc 功能描述:SWIT FABRIC 192 X 192 16.384MBPS 5V 64MQFP - Trays
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MT90812AP 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Integrated Digital Switch (IDX)
MT90812AP1 制造商:Zarlink Semiconductor Inc 功能描述:SWIT FABRIC 192 X 192 16.384MBPS 5V 68PLCC /BAKE/DRYPACK - Rail/Tube 制造商:Zarlink Semiconductor Inc 功能描述:INTEGRATED DIGITAL SWCH
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