PEF 20954 HT V1.1 Infineon Technologies, PEF 20954 HT V1.1 Datasheet - Page 123

• Manufacturer Part Number: PEF 20954 HT V1.1
• Description: IC ECHO CANCELLER DGTL TQFP144
• Manufacturer: Infineon Technologies

Specifications of PEF 20954 HT V1.1

• Function: Smart Integrated Digital Echo Canceller (SIDEC)
• Interface: PCM, Serial, UCC
• Number Of Circuits: 1
• Voltage - Supply: 3 V ~ 3.6 V
• Current - Supply: 350mA
• Power (watts): 900mW
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 144-LFQFP
• Includes: Double Talk Detection
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: PEF20954HTV1.1; SP000007505

The content of this register is PCM encoded
MONSIL[7:0] (Addr.: 1EH): Monitor send input level
The content of this register is encoded logarithmically. The maximum value of 191
corresponds to 3 dBm0. A decrease of 16 is equivalent to a decrease of 6 dB. The
following table displays the relation between the register value and the dBm0 value.
Table 38
MONSOL[7:0] (Addr.: 1FH): Monitor send output level
The content of this register is encoded logarithmically. For conversion to dBm0 see
Table 38
Data Sheet
Register Value
SOL[7]
SIL[7]
MON
MON
HEX
C0
B8
B0
A8
A0
96
90
88
80
78
70
68
60
.
SOL[6]
SIL[6]
linear
MON
MON
Conversion of Monitor Register Values to dBm0 Values
191
184
176
168
160
152
144
136
128
120
112
104
96
Level [dBm0]/[dB]
SOL[5]
SIL[5]
MON
MON
-12
-15
-18
-21
-24
-27
-30
-33
+3
-3
-6
-9
0
SOL[4]
SIL[4]
MON
MON
123
Register Value
SOL[3]
SIL[3]
MON
MON
HEX
58
50
48
40
38
30
28
20
18
10
08
1
0
SOL[2]
SLI[2]
linear
MON
MON
48
40
32
24
16
88
80
72
64
56
8
1
0
Register Description
Level [dBm0]/[dB]
SOL[1]
SIL[1]
MON
MON
Rev. 2, 2004-07-28
- infinity
PEB 20954
PEF 20954
-36
-39
-42
-45
-48
-51
-54
-57
-60
-63
-66
-69
SOL[0]
SIL[0]
MON
MON