PEB3265 Infineon Technologies Corporation, PEB3265 Datasheet - Page 237

• Manufacturer Part Number: PEB3265
• Description: (PEB326x / PEB426x) Dual Channel Slicofi-2 / Slic Duslic
• Manufacturer: Infineon Technologies Corporation

Preliminary
Bit
DTMF Input Signal Gain:
G
– 24.08 dB
with
g = 2
0
Table 53
e
0
1
7
Alternative representation:
Choose "e" as the next integer number which is bigger than or equal to:
Table 54
G
0
– 6.02
6.02
Data Sheet
e
m
36
DTMF
DTMF
H
=
3
m
(9 - e)
–
G
[dB] = 20
[dB]
log
DTMF
DTMF-GAIN Gain Stage Control for DTMF Input Signal
31, 0
(32 + m) and
2 DTMF
G
7
G
Ranges of G
Example for DTMF-GAIN Calculation
DTMF
2
0.5
2
G
1
e
2
DTMF
+
log
=
e
7
–
3
DTMF Input Signal Gain G
23.95 dB
17.93 dB
– 18.20 dB
10
6
e
32
23.95 dB
–
16 + 20
log
------------------------------- -
=
log
DTMF
10 DTMF
10
G
e
3
4
2
G
------------------------------
10
5
DTMF
SLICOFI-2x Command Structure and Programming
[dB] dependent on “e”
2
G
G
log
20
DTMF
DTMF
G
10
DTMF
dB
[g/32768]
3
–
4
237
2
18.06 dB
12.04 dB
G
-------------------------------
2
– 24.08 dB
DTMF
+
m
0
0
0
e
6.02
–
DTMF
32
24.08 + 20
dB
3
[dB] Range
DTMF-GAIN
0x60
0x80
0x40
m
2
log
10
DuSLIC-E/-E2/-P
[g/32768]
1
2000-07-14
0
Y