參數(shù)資料
型號: 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
文件頁數(shù): 38/52頁
文件大?。?/td> 222K
代理商: PCD5096
1997 Jan 22
38
Philips Semiconductors
Preliminary specification
Universal codec
PCD5096
Table 37
Control registers for two active channels
13.2
Conference call between one PSTN line and two IOM buffers
The PCD5096 is able to perform a 3 party conference call. Figure 23 shows a typical configuration, with two handsets in
conference call with an PSTN line. Tables 38, 39 and 40 show possible settings for the DSP parameters, the IOM control
table and the control registers in the PCD5096.
Note that the LLb block of the PCD5096 could be used in parallel to connect a second PSTN line to another IOM buffer.
This is not covered in this example.
SDR
ADDRESS
(HEX)
PARAMETER NAME
VALUE
(HEX)
FUNCTION
78
79
7A
7B
7C
codec control
IOM control
gain settings A/D and D/A paths
VREF1, VREF2 settings
DSP modes
005B
0004
D0D0
A0A0
0048
Codec 1 ON, Codec 2 ON
IOM slave mode, 768 kbits/s
A/D gain = +9 dB, D/A gain = 0 dB for both channels
default setting for VREF1 and VREF2
both channels run in speech and tone mode
Fig.23 Conference call between one PSTN line and two IOM buffers.
handbook, full pagewidth
MBH879
PPa, PPb
RADIO
CIRCUIT
IOM-2
LLa
LLb
CCa
a/b
PCD5093
PCD5096
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