參數(shù)資料
型號(hào): PEB2265
廠商: SIEMENS AG
元件分類: Codec
英文描述: Two Channel Codec Filter with IOM㈢-2 Interface (IOM㈢-2 - SICOFI㈢-2)
中文描述: 雙信道編解碼器與國(guó)際移民組織㈢-2接口(移徙㈢-2 - SICOFI㈢-2)
文件頁數(shù): 76/77頁
文件大?。?/td> 851K
代理商: PEB2265
PEB 2265
Test Features
Semiconductor Group
76
1997-07-01
8.3
Two independent Tone Generators are available per channel. When one or both
tone-generators are switched on, the voice signal is switched off automatically for the
selected voice channel. To make the generated signal sufficient for DTMF, a
programmable bandpass-filter is included. The default frequency for both tone
generators is 1000 Hz.
The QSICOS-program contains a program for generating coefficients for variable
frequencies.
Byte sequences for programming both the tone generators and the bandpass-filters:
Programming the IOM
-2 – SICOFI
-2 Tone Generators
The resulting signal amplitude can be set by transmitting the AR1 and AR2 filters. By
switching a “digital loop” the generated sine-wave signal can be fed to the transmit path.
1)
0C is used for programming Tone Generator 1, in channel 1.
0D is used for programming Tone Generator 2, in channel 1.
Table 24
Frequency
697 Hz
770 Hz
852 Hz
941 Hz
1209 Hz
1336 Hz
1477 Hz
800 Hz
950 Hz
1008 Hz
2000 Hz
Command
0C/0D
1)
0C/0D
1)
0C/0D
1)
0C/0D
1)
0C/0D
1)
0C/0D
1)
0C/0D
1)
0C/0D
1)
0C/0D
1)
0C/0D
1)
0C/0D
1)
Byte 1
0A
12
13
1D
32
EC
AA
12
1C
1A
00
Byte 2
33
33
3C
1B
32
1D
AC
D6
F0
AE
80
Byte 3
5A
5A
5B
5C
52
52
51
5A
5C
57
50
Byte 4
2C
C3
32
CC
B3
22
D2
C0
C0
70
09
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