PEB2465 SIEMENS [Siemens Semiconductor Group], PEB2465 Datasheet - Page 84

• Manufacturer Part Number: PEB2465
• Description: Four Channel Codec Filter
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

Semiconductor Group
10.4
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:
Table 19
Frequency
1)
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.
697 Hz
770 Hz
852 Hz
941 Hz
1209 Hz
1336 Hz
1477 Hz
800 Hz
950 Hz
1008 Hz
2000 Hz
0C is used for programming Tone Generator 1, in channel 1(3).
0D is used for programming Tone Generator 2, in channel 1(3).
Programming the SICOFI
Command
0C/0D
0C/0D
0C/0D
0C/0D
0C/0D
0C/0D
0C/0D
0C/0D
0C/0D
0C/0D
0C/0D
1)
1)
1)
1)
1)
1)
1)
1)
1)
1)
1)
Byte 1
0A
12
13
1D
32
EC
AA
12
1C
1A
00
®
-4 Tone Generators
84
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
PEB 2465
Appendix
02.97