PSB4860HV4.1 Lantiq, PSB4860HV4.1 Datasheet - Page 28

• Manufacturer Part Number: PSB4860HV4.1
• Manufacturer: Lantiq

Specifications of PSB4860HV4.1

• Lead Free Status / Rohs Status: Supplier Unconfirmed

Data Sheet
In figure 10 a phone conversation using the speakerphone is in progress. One party is
using the base station of a DECT system while the other party is using a mobile handset.
At the same time an external call is serviced by the answering machine. In the current
state a message (recorded or outgoing) is being played back. In this case the DTMF
detector is used to detect signals for remote access while the CPT detector is used to
determine the end of the external call.
Figure 10 Functional Units - Simultaneous Internal and External Call
speaker
micro-
phone
loud-
line
line
out
in
0
0
0
0
Line Echo
Canceller
SSDI/IOM
Channel 1
acoustic side
Speaker-
line side
®
phone
0 0
0
28
-2
decoder
CPT
0
Equalizer
Detector
decoder
Speech
DTMF
PSB 4860
2000-01-14
Memory
SCI