參數(shù)資料
型號： PEB2466-H
英文描述： LTC3409 Evaluation Kit
中文描述： A-Law/u-Law編解碼器
文件頁數(shù)： 64/73頁
文件大?。?/td> 1618K
代理商： PEB2466-H
PEB 2466
PEF 2466
Test Modes
Hardware Reference Manual
55
2001-02-20
9.3
Cut-Off
’
s
The transmit path and the receive path can be cut off at two locations each.
Figure 35
shows the locations in the signal paths.
Figure 35
Cut-Off
’
s
Table 36
Cut-Off Programming in Register CR2, Bits 7 to 5.
COT/R
000
001
010
Cut-Off
’
s in the Transmit and the Receive Paths
All Cut-offs disabled (Normal Operation).
COT16
Cut Off Transmit path at 16 kHz (input of TH-Filter).
COT8
Cut Off Transmit path at 8 kHz (shortens the input of the
compressor unit to ground, resulting in PCM idle codes in the
transmit time slot).
COR4M
Cut Off Receive path at 4 MHz (POFI-output).
COR64
Cut Off Receive path at 64 kHz (IM-filter input).
101
110
Receive Path
Transmit Path
Analog
Output
Analog
Input
PCM
Input
PCM
Output
IM1
TH
Digital Gain 2
Digital Gain 2
IM2
Frequency
Response
Digital Gain 1
Frequency
Response
Digital Gain 1
HPX
HPR
ADC
DAC
AGX
AGR
CMP
EXP
COT8
COT16
COR64
COR4M
2466_235
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