參數(shù)資料
型號： TECO3264
廠商： Lineage Power
英文描述： 32-Channel Echo Canceller(32通道回波清除器)
中文描述： 32通道回聲消除器（32通道回波清除器）
文件頁數(shù)： 42/128頁
文件大?。?/td> 2328K
代理商： TECO3264
Data Sheet
August 1999
TECO3264 32-Channel Echo Canceller
42
Lucent Technologies Inc.
Parameters
(continued)
Control Parameters
The parameters in Table 17 generally determine how the various detectors are used to control the operation of the
linear processor and NLP. Things such as near-end speech detection, adaptation control, NLP control, etc., fall
under this category of parameters.
Table 17. Control Parameters
Symbol
Description
Memory Map
Starting Address (Hex)
XLOSS[1:0]
X loss pad value.
0 = 0 dB
1 = 6 dB
2 = 12 dB
3 = Not allowed
Y loss pad value.
0 = 0 dB
1 = 6 dB
2 = 12 dB
3 = Not allowed
0x67
YLOSS[1:0]
0x67
NESPHOC[8:0] NES hangover.
FGAIN[7:0]
SGAIN[7:0]
FBETA[12:0]
P[1:0]
ZEROSVRAM
SBETA[12:0]
XSIGN
YSIGN
TGAIN[7:0]
TFNLP[7:0]
AVOICE[7:0]
MASK0
MASK1
MASK2
MASK3
ADATA[7:0]
NES1HOC[8:0] Near-end speech hangover.
NLPHOC[8:0]
NLP hangover.
NES3THR[8:0] NES3 hangover.
THR1[7:0]
E vs. Y fast convergence threshold.
THR2[7:0]
E vs. Y TNLP threshold.
THR3[7:0]
E vs. Y H-reset threshold.
B3[7:0]
NES3 X vs. E compare threshold.
TOFFSET[4:0] Sets channel alignment for control output signals.
0x4D
0x69
0x6A
0x6B
0x6C
0x6C
0x6D
0x6E
0x6E
0x6F
0x70
0x71
0x72
0x72
0x72
0x72
0x73
0x74
0x75
0x76
0x77
0x78
0x79
0x7A
0x7B
Fast convergence gain.
Slow convergence gain.
Fast convergence mode beta.
NBE threshold select.
Clear SV storage RAM in control circuit.
Slow convergence mode beta.
Controls X sign bit of control multiplier for test.
Controls Y sign bit of control multiplier for test.
Fast convergence gain time.
Fast convergence NLP fast beta time.
Hybrid return loss threshold for voice signals.
H-reset transition mask.
External event mask.
E vs. Y calculation mask.
VPA on-off mask.
Hybrid return loss threshold for data signals.
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