PEF 20954 HT V1.1 Infineon Technologies, PEF 20954 HT V1.1 Datasheet - Page 100
PEF 20954 HT V1.1
Manufacturer Part Number
PEF 20954 HT V1.1
Description
IC ECHO CANCELLER DGTL TQFP144
Manufacturer
Infineon Technologies
Datasheet
1.PEB_20954_HT_V1.1.pdf
(164 pages)
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
SP000007505
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SGMOD1
SPTP [6:0]
TSGRPP[7:0] (Addr.: 3AH): Test signal generator for receive path pattern,
Reset value = 55H
SGMOD0
RPTP[6:0]
The sign of the test sequence is determined by the following table. The amplitude is
given by TSGSPP[6:0] and TSGRPP[6;0]. Hence, rectified test signals are generated
(see
Table 36
Figure 28
HTIM[7:0] (Addr.: 3BH): High-Byte for Timer, Reset value = 00H
Data Sheet
TIM[15]
MOD0
TSGRPP[6:0]
SG
Figure
SGMOD1
0
0
1
1
TIM[14]
28).
TSGSPP[6:0]
TP[6]
SGMOD1/0 Configuration
Explanation of Test Pattern Generation (random sign signal)
RP
TEDEL
operation mode1 for signal generator (see
Send path test pattern amplitude, log, A-/µ-Law encoded
operation mode 0 for signal generator (see
receive path test pattern amplitude, log, A-/µ-Law encoded
TIM[13]
TP[5]
RP
SGMOD0
0
1
0
1
TIM[12]
TP[4]
RP
100
Test Signal Sign changes
according to:
2105 Hz
2105 Hz inverted
2010 Hz
random sequence
TIM[11]
TP[3]
RP
TIM[10]
TP[2]
RP
Table
Table
Register Description
TIM[9]
TP[1]
36)
36)
RP
Rev. 2, 2004-07-28
time
PEB 20954
PEF 20954
TIM[8]
TP[0]
RP
time
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