參數(shù)資料
型號(hào)： PCD5096
廠商： NXP Semiconductors N.V.
元件分類： Codec
英文描述： Universal codec
中文描述： 通用編解碼器
文件頁(yè)數(shù)： 33/52頁(yè)
文件大小： 222K
代理商： PCD5096
1997 Jan 22
33
Philips Semiconductors
Preliminary specification
Universal codec
PCD5096
12 APPLICATION INFORMATION
12.1
Small business systems
The PCD5096 is designed for business and residential phone systems. In combination with a processor like the
PCD5093, two simultaneous calls on 2 PSTN lines (Ba, Bb) can be processed. To realize single line systems with
hands-free functionality one analog interface port can be connected to a speaker phone and the other to the line
interface. A typical small business system consists of a PCD5093 DECT processor with radio interface and a single
universal codec (see Fig.19).
The possible configurations for speech connections in the universal codec are listed in Table 34.
A real hands-free solution can also be implemented by using one PSTN line port and connecting a corded handset, a
hands-free microphone and a loudspeaker to the second analog interface port of the universal codec.
Table 34
Possible speech connections in a small business system
SINGLE CONNECTIONS
LOCAL
Ba
LOCAL
Bb
LOCAL
PPa
LOCAL
PPb
Ba
PPa
Ba
PPb
Bb
PPa
Bb
PPb
DUAL CONNECTIONS
(LOCAL
Ba) + (Bb
PPa)
(LOCAL
Bb) + (Ba
PPa)
(LOCAL
PPa) + (Ba
PPb)
(LOCAL
PPb) + (Ba
PPa)
(Ba
PPa) + (Bb
PPb)
(Ba
PPb) + (Bb
PPa)
(LOCAL
Ba) + (Bb
PPb)
(LOCAL
Bb) + (Ba
PPb)
(LOCAL
PPa) + (Bb
PPb)
(LOCAL
PPb) + (Bb
PPa)
Fig.19 Small business system.
handbook, full pagewidth
MBH857
ECHO
CANCELLATION
DSP
PCD5096
PCD5093
IOM
I
2
C
2 x
PSTN
RADIO
CIRCUIT
PPa, PPb
local
(speaker phone)
IOM
I
2
C
A
D
A
D
Ba
Bb
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