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ML7204-003 Datasheet(PDF) 28 Page - LAPIS Semiconductor Co., Ltd.

Part # ML7204-003
Description  VoIP CODEC
PDF  214 Pages
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Manufacturer  LAPIS [LAPIS Semiconductor Co., Ltd.]
Direct Link  http://www.lapis-semi.com/
Logo LAPIS - LAPIS Semiconductor Co., Ltd.

ML7204-003 Datasheet(HTML) 28 Page - LAPIS Semiconductor Co., Ltd.

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Data storage format
Figures 12 and 13 show the storage formats at transmit/receive processing in each parameter.
A. G.729.A
Figure 12 G.729.A Data Format
G.729.A(8 kbps)
· 1 frame 80 bits/10 ms
· 2 frames 160 bits/20 ms
bit15 bit0
bit31 ························bit16
bit63 ························bit48
bit79 ························bit64
(a) 10 ms/16-bit mode
(b) 20 ms/16-bit mode
bit7········bit0
·
·
(c) 10 ms/8-bit mode
bit15········bit8
bit71········bit64
bit79········bit72
·
·
(d) 20 ms/8-bit mode
D15
D0
·
·
D15
D0
D7
D0
D7
D0
Number
of words
1
2
4
5
bit47 ························bit32
3
Number
of words
1
2
·
9
·
10
bit7········bit0
bit15········bit8
bit71········bit64
bit79········bit72
bit7········bit0
bit15········bit8
bit71········bit64
bit79········bit72
bit15 ························bit0
bit31 ························bit16
bit63 ························bit48
bit79 ························bit64
bit47 ························bit32
bit15 ························bit0
bit31 ························bit16
bit63 ························bit48
bit79 ························bit64
bit47 ························bit32
Number
of words
1
2
·
9
10
11
12
19
20
Number
of words
1
2
4
5
3
6
7
9
10
8
GB2
0
GB2
1
GB2
2
GB2
3
GA2
0
GA2
1
GA2
2
S2
0
S2
1
S2
2
S2
3
C2
0
C2
1
C2
2
C2
3
C2
4
C2
5
C2
6
C2
7
C2
8
C2
9
C2
10
C2
11
C2
12
P2
0
P2
1
P2
2
P2
3
P2
4
GB1
0
GB1
1
GB1
2
GB1
3
GA1
0
GA1
1
GA1
2
S1
0
S1
1
S1
2
S1
3
C1
0
C1
1
C1
2
C1
3
C1
4
C1
5
C1
6
C1
7
C1
8
C1
9
C1
10
C1
11
C1
12
P0
P1
0
P1
1
P1
2
P1
3
P1
4
P1
5
P1
6
P1
7
L3
0
L3
1
L3
2
L3
3
L3
4
L2
0
L2
1
L2
2
L2
3
L2
4
L0
Number
of words
1
2
4
5
3
L1
0
L1
1
L1
2
L1
3
L1
4
L1
5
L1
6
B15
B14
B13
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
G.729.A code and word structure
Word structure
Symbol name
bit No
·
·
·



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