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CMX608 参数 Datasheet PDF下载

CMX608图片预览
型号: CMX608
PDF下载: 下载PDF文件 查看货源
内容描述: [Integrated Input and Output Channel Filters]
分类和应用:
文件页数/大小: 70 页 / 3411 K
品牌: CMLMICRO [ CML MICROCIRCUITS ]
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RALCWI Vocoder  
CMX608/CMX618/CMX638  
2400bps  
A 20ms Vocoder frame consists of 48 bits. 24 bits are more sensitive and 24 bits are less sensitive. A  
single frame is transferred between the device and the host as 6 bytes. The table below shows the bit  
positions in the transferred bytes. The more sensitive bits are shown white on black. The byte at the top is  
the first out of the C-BUS for the encoder and the first into the C-BUS for the decoder.  
7
6
5
4
3
2
1
0
B7  
B6  
B5  
B4  
B3  
B2  
B1  
B0  
B15  
B23  
B31  
B39  
B47  
B14  
B22  
B30  
B38  
B46  
B13  
B21  
B29  
B37  
B45  
B12  
B20  
B28  
B36  
B44  
B11  
B19  
B27  
B35  
B43  
B10  
B18  
B26  
B34  
B42  
B9  
B8  
B17  
B25  
B33  
B41  
B16  
B24  
B32  
B40  
There are no un-used bits in the packet. For multiple frame packets, each frame is 6 bytes and is read or  
written to the C-BUS in chronological order.  
2750bps  
A 20ms Vocoder frame consists of 55 bits. 23 bits are more sensitive and 32 bits are less sensitive. A  
single frame is transferred between the device and the host as 7 bytes. The table below shows the bit  
positions in the transferred bytes. The more sensitive bits are shown white on black. The byte at the top is  
the first out of the C-BUS for the encoder and the first into the C-BUS for the decoder.  
7
6
5
4
3
2
1
0
B7  
B6  
B5  
B4  
B3  
B2  
B1  
B0  
B15  
B23  
B31  
B39  
B47  
x
B14  
B22  
B30  
B38  
B46  
B54  
B13  
B21  
B29  
B37  
B45  
B53  
B12  
B20  
B28  
B36  
B44  
B52  
B11  
B19  
B27  
B35  
B43  
B51  
B10  
B18  
B26  
B34  
B42  
B50  
B9  
B8  
B17  
B25  
B33  
B41  
B49  
B16  
B24  
B32  
B40  
B48  
The most significant bit of the last byte is un-used. Its value is indeterminate. For multiple frame packets,  
each frame is 7 bytes (with 1 unused bit in the last byte) and is read or written to the C-BUS in  
chronological order.  
2014 CML Microsystems Plc  
21  
D/608_18_38/11  
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