參數(shù)資料
型號: PEF24901H
英文描述: ?Quad ISDN Echocancellation Circuit Digital Front-End for 4B3T Line Code?
中文描述: ?四整體數(shù)位服務(wù)網(wǎng)路Echocancellation電路數(shù)字前端4B3T線路碼的終結(jié)?
文件頁數(shù): 64/73頁
文件大?。?/td> 1618K
代理商: PEF24901H
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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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PEF24901H V2.2 制造商:Lantiq 功能描述:
PEF24901HV2.2 功能描述:ISDN 接口 ISDN RoHS:否 制造商:Texas Instruments 封裝:Tube
PEF24902 制造商:未知廠家 制造商全稱:未知廠家 功能描述:ISDN Line Interface
PEF24902H 制造商:未知廠家 制造商全稱:未知廠家 功能描述:?Quad ISDN Echocancellation Circuit Analog Front End - 2B1Q/4B3T Code?
PEF24902HV2.1 制造商:Rochester Electronics LLC 功能描述:- Bulk