PEF 20954 HT V1.1 Infineon Technologies, PEF 20954 HT V1.1 Datasheet - Page 144

• 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

Figure 38
Data Sheet
UCCI/UCCO
UCCI/UCCO
(SYNCO)
(SYNCO)
TUCCO
Timing Characteristics
SCLKI
UCCO
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
Bit 0, channel 31
Special Cases for Multiframe Alignment and Timing Characteristics
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
Phase 1
Phase 3
Phase 3
144
Phase 1
Bit 7, channel 0
UCCMFR = 4
Special Case for Multiframe Alignment
Phase 2
Phase 0
Phase 0
Phase 2
Electrical Characteristics
2
Bit 7, channel 0, frame 4
Bit 7, channel 0, frame 4
Phase 3
Phase 1
Phase 1
Phase 3
5
Rev. 2, 2004-07-28
PEB 20954
PEF 20954