PEF 20954 HT V1.1 Infineon Technologies, PEF 20954 HT V1.1 Datasheet - Page 66

• 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

4.2.6
Figure 27
Data Sheet
SI
TMFBI
SYNCI
TSIGM
SO
TMFBO
SI
Speech Highway Control Signals for CAS in T1 Systems
Timing of Supporting signals for CAS-BR Applications
0
Frame 1
Frame 12
Transmit Multiframe Begin; indication bit 7 channel 0
System Synchronisation Input Pulse
Using FALC in channel translation mode 1
TSIGM marks robbed bit position in frame 6 and 12 in each multiframe
The delay of TMFBI to TMFBO is identical to the delay of SI to SO
1
Frame 2
2
bit 7 channel 0
Frame 1
Multiframe n (e.g. F12/SF)
Transmit Multiframe Begin; indication bit 7 channel 0
66
22
Frame 6
23
Multiframe n (e.g. F12/SF)
Frame 6
24
Frame 10
Operational Description
CAS-BR Applications
Frame 12
Rev. 2, 2004-07-28
Frame 11
PEB 20954
Frame 7
0
PEF 20954