PSB4860 Ver la hoja de datos (PDF) - Siemens AG
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PSB4860 Datasheet PDF : 250 Pages
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PSB 4860
Functional Description
2
Functional Description
FFuunnccttiioonnaall UUnniittss
The PSB 4860 contains several functional units that can be combined with almost no
restrictions to perform a given task. Figure 7 gives an overview of the important
functional units.
SSDI/IOM®-2
Channel 1
S6
IOM®-2
Channel 2
S8
S4
loud-
speaker
I1
I2
I3
micro-
phone
S3
S9
DTMF
Generator
S10
S2
line
out
I1
I2
I3
line
in
S1
I1
S5 I1 I2 I3
I1 I2 S11
S14
Universal
Attenuator
I1
acoustic side
Speaker-
phone
line side
S12 I3 I4
S7 I1 I2 I3
S13
Speech
Decoder
Speech
Coder
I1 I2
I1 I2
I1 I2
I1
Line Echo
Canceller
AGC
Equalizer
S15
S16 S17
S18
I1
I1
I1
I1
CNG
Detector
Alert Tone
Detector
CPT
Detector
CID
Decoder
DTMF
Detector
signal summation:
I1
I2
I3
signal sources:
S1,...,S18
Figure 7 Functional Units - Overview
Memory
SCI
Semiconductor Group
23
10.97
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