參數(shù)資料
型號: MT9126
廠商: Mitel Networks Corporation
英文描述: Quad ADPCM Transcoder(四ADPCM編解碼器)
中文描述: 四差分PcM轉(zhuǎn)碼器(四差分PcM編解碼器)
文件頁數(shù): 11/25頁
文件大?。?/td> 138K
代理商: MT9126
MT9126
8-11
Figure 7 - ST-BUS 8-bit Companded PCM Relative Timing
MCLK/C4i
F0i
ADPCMi
ADPCMo
C2o (output)
B1
B2
B3
B4
EN1 (output)
EN2 (output)
PCMi2
PCMo2
B3
B4
PCMi1
PCMo1
B1
B2
D
C
D
C
B1
SEL=0
SEL=1
B2
B4
B3
B1 B2
B4
B3
B1 B2
B4
B3
B1 B2
B4
B3
32 kb/s is shown
In 24 kb/s, bit 4 becomes “X”
16 kb/s
SEL operates for
16 kb/s only
ENB2/F0od
7 6 5 4
7 6 5 4 3 2 1 0
3 2 1 0
7 6 5 4
7 6 5 4 3 2 1 0
3 2 1 0
7 6 5 4
7 6 5 4 3 2 1 0
3 2 1 0
0 1
7 6 5 4 3 2 1 0
1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2
1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2
1 2 3 4
1 2 3 4 1 2 3 4
1 2 3 4
7 6 5 4
7 6 5 4 3 2 1 0
3 2 1 0
0 1
7 6 5 4 3 2 1 0
transparent relay of D- and C- channels
when ENB1=0
0 1
7 6 5 4 3 2 1 0
1 2 3 4
1 2 3 4 1 2 3 4
1 2 3 4
0 1
7 6 5 4 3 2 1 0
outputs=High impedance
inputs = don’t care
X = undetermined logic level output; don’t care input
Outputs high impedance outside of channel boundaries
Two frame delay from data input to data output
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參數(shù)描述
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