PEF 20954 HT V1.1 Infineon Technologies, PEF 20954 HT V1.1 Datasheet - Page 104
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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CONFSCU6[7:0] (Addr.: 17H): Configuration of speech control unit 6, write protected,
Reset value = 2AH
RELADD[2:0]
RIMIN[2:0]
Offset:
OFCNT[1:0]
CONFSCU7[7:0] (Addr.: 18H): Configuration of speech control unit 7, write protected,
Reset value = 8AH
NLP comfort noise:
NOISEINC[3:0]
BNINC[1:0]
BNDEC[1:0]
Data Sheet
ADD[2]
NOISE
INC[3]
REL
ADD[1]
NOISE
INC[2]
REL
Safety increment for the residual echo limiter threshold
"000": 0 dB
"100": 12 dB "101": 15 dB "110": 18 dB "111": 21 dB
Reduction of receive path level for determination of the temporary
NLP threshold
"000": 0 dB
"100": 12 dB "101": 15 dB "110": 18 dB "111": 21 dB
Count period for offset measurements
"00": disabled
"10": 16 ms
Increase of the noise level for maximum level evaluation
"0000": -6 dB
"0010": -3 dB
"0100": +0 dB
"0110": +3 dB
"1000": +6 dB
"1010": +9 dB
"1100": +12 dB
"1110": +15 dB
Incrementing period for background noise evaluation counter
"00": 64 ms
"00": 16 ms
Decrementing period for background noise evaluation counter
ADD[0]
NOISE
INC[1]
REL
"001": 3 dB
"001": 3 dB
"01": 32 ms
"01": 8 ms
NOISE
MIN[2]
INC[0]
RI
104
MIN[1]
INC[1]
BN
RI
"010": 6 dB
"010": 6 dB
"01": 64 ms
"11": 1 ms
"0001": -4.5 dB
"0011": -1.5 dB
"0101": +1.5 dB
"0111": +4.5 dB
"1001": +7.5 dB
"1011": +10.5 dB
"1101": +13.5 dB
"1111": +16.5 dB
"10": 16 ms
"10": 4 ms
MIN[0]
INC[0]
BN
RI
"011": 9 dB
"011": 9 dB
"11": 8 ms
"11": 2 ms
Register Description
DEC[1]
CNT[1]
OF
BN
Rev. 2, 2004-07-28
PEB 20954
PEF 20954
DEC[0]
CNT[0]
OF
BN
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