PEF 20954 HT V1.1 Infineon Technologies, PEF 20954 HT V1.1 Datasheet - Page 100

• 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

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