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參數(shù)資料
| 型號(hào)： | MT8924AE |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | PCM Conference Circuit (PCC) Preliminary Information |
| 中文描述： | 會(huì)議的PCM電路（PCC）的初步信息 |
| 文件頁(yè)數(shù)： | 4/18頁(yè) |
| 文件大?。?/td> | 102K |
| 代理商： | MT8924AE |
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MT8924
Preliminary Information
8-6
Table 1 - PCM Noise Suppression Threshold Levels
Noise
Threshold
PCM Byte
+ve input
-ve input
B7 - B0
B7 - B0
A-Law
1/4096
1000 0000
0000 0000
9/4096
1000 0100
0000 0100
16/4096
1000 1000
0000 1000
32/4096
1000 1111
0000 1111
μ
-Law
1/8159
1111 1111
0111 1111
9/8159
1111 1011
0111 1011
16/8159
1111 0111
0111 0111
32/8159
1111 0000
0111 0000
Table 2 - PCM Byte Format
B7 (sign bit) is the MSB and B0 is the LSB
F1-F0 corresponds to the D5-D4 bits of the control byte of Operating Mode Instruction 5
F1
F0
B7
B6
B5
B4
B3
B2
B1
B0
Comments
0
0
+ Full Scale
+ 0 Level
- 0 Level
- Full Scale
+ Full Scale
+ 0 Level
- 0 Level
- Full Scale
+ Full Scale
+ 0 Level
- 0 Level
- Full Scale
+ Full Scale
+ 0 Level
- 0 Level
- Full Scale
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
0
0
1
0
1
1
0
1
0
0
1
0
1
1
0
1
0
0
1
1
0
0
1
0
1
1
0
0
1
1
0
1
0
0
1
0
1
1
0
1
0
0
1
0
1
1
0
1
0
0
1
1
0
0
1
0
1
1
0
0
1
1
0
1
0
0
1
0
1
1
0
1
0
0
1
0
1
1
0
1
0
0
1
1
0
0
1
0
1
1
0
0
1
1
0
1
0
0
1
0
1
1
0
1
0
0
1
0
1
1
0
No Inversion
0
1
Even Bit Inversion
1
0
Odd Bit Inversion
1
1
Bit Inversion
Overflow Detection / Input Channel Attenuation
If the sum of the channels involved in one conference
exceeds the full scale value of the accumulator, an
overflow condition is generated which can be
monitored specifically by reading the status of the
overflow register. If an overflow condition occurs,
then each channel in a conference can be
independently attenuated if desired.
Alternatively, a conference in the overflow condition
can be detected using the OS signal in conjunction
with frame pulse F0i. OS will be low during the
second half of a general output channel slot time N,
if channel N belongs to a conference in overflow (see
Figure 11). This information can be used to control
input channel attenuation through software control.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MT8924AS | PCM Conference Circuit (PCC) Preliminary Information |
| MT8924 | PCM Conference Circuit (PCC) Preliminary Information |
| MT8930B | () |
| MT8931B | () |
| MT8930C-1 | SWITCH, ON-OFF, CHROM/BLK BTN; Switch function type:SPST Latching; Voltage, contact AC max:125V; Voltage, contact DC max:24V; Temp, op. max:85(degree C); Temp, op. min:-40(degree C); Diameter, panel cut-out:13.6mm; Length / Height, RoHS Compliant: Yes |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MT8924AS | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:PCM Conference Circuit (PCC) Preliminary Information |
| MT8926 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:ISO-CMOS ST-BUS⑩ FAMILY T1 Performance Monitoring Adjunct Circuit (PMAC) |
| MT8926AE | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:ISO-CMOS ST-BUS⑩ FAMILY T1 Performance Monitoring Adjunct Circuit (PMAC) |
| MT8926AP | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:ISO-CMOS ST-BUS⑩ FAMILY T1 Performance Monitoring Adjunct Circuit (PMAC) |
| MT8930 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:CMOS ST-BUS⑩ FAMILY Subscriber Network Interface Circuit Preliminary Information |
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