PEF 20954 HT V1.1 Infineon Technologies, PEF 20954 HT V1.1 Datasheet - Page 65
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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Figure 26
Data Sheet
UCCI/UCCO
UCCI/UCCO
(SYNCO)
(SYNCO)
TUCCO
SCLKI
UCCO
Timing Characteristics
SYNCI
SYNCI
Special Cases for Multiframe Alignment
Case 1: SYNCI at channel 31, bit 0, phase 3
SCLKI
Case 2: SYNCI at channel 0, bit 7, phase 0
SCLKI
UCCI
Special Cases for Multiframe Alignment and Timing Characteristics
Bit 0, channel 31
Phase 1
Phase 1
3
4
Bit 0, channel 31, frame 3
Bit 0, channel 31, frame 3
Phase 0
Phase 2
Phase 2
Phase 0
UCCMFR = 5
sampling of UCCI at the
beginning of phase 2
1
65
Phase 1
Phase 3
Phase 3
Phase 1
Bit 7, channel 0
UCCMFR = 4
Special Case for Multiframe Alignment
Phase 2
Phase 0
Phase 0
Phase 2
2
Operational Description
Bit 7, channel 0, frame 4
Bit 7, channel 0, frame 4
Phase 3
Phase 1
Phase 1
Phase 3
Rev. 2, 2004-07-28
5
PEB 20954
PEF 20954
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