參數(shù)資料
型號： PEF24901
英文描述： ISDN LINE INTERFACE|BASIC|CMOS|QFP|64PIN|PLASTIC
中文描述： 綜合業(yè)務數(shù)字網(wǎng)線接口|基本|的CMOS | QFP封裝| 64管腳|塑料
文件頁數(shù)： 25/73頁
文件大小： 1618K
代理商： PEF24901
PEB 2466
PEF 2466
Operational Description
Hardware Reference Manual
16
2001-02-20
4.2.4
The specifications to which the SICOFI
4-μC are tested are tighter than the ITU-T Q.552
Specification to guardband various SLIC implementations. The guaranteed transmission
characteristics of the SICOFI
4-μC under test conditions ensure that the final linecard
design will meet the ITU-T specification.
The figures in this document are based on the subscriber-line board requirements.
Proper
adjustment
of
the
programmable
impedance matching, frequency-response correction) requires a complete knowledge of
the analog environment in which the SICOFI
4-μC is to be used. Unless otherwise
stated, the transmission characteristics are guaranteed within the following operating
conditions:
T
A
= 0
°
C to 70
°
C (
PEB 2466),
T
A
= -40
°
C to 85
°
C (
PEF 2466
);
V
DD
= 5 V
±
5%;
GNDA1,2,3,4 = GNDD = 0 V;
Load on V
OUT
:
R
L
> 300
;
C
L
< 50 pF;
H(IM) = H(TH) = 0;
H(R1) = H(FRX) = H(FRR) = 1;
HPR and HPX enabled;
AR = 0 to
–
9 dB (AR = AR1 + AR2 + FRR + R1);
AX = 0 to +9 dB for A-Law,
AX = 0 to +7 dB for μ-Law (AX = AX1 + AX2 + FRX);
f
= 1014 Hz; 0 dBm0; A-Law or μ-Law;
AGX = 0 dB, +6.02 dB; and
AGR = 0 dB,
–
6.02 dB.
Operating Conditions
filters
(transhybrid balancing,
Figure 8
Simplified Signal Flow Diagram
ADC
DAC
Receive Path
Transmit Path
Analog
Output
Analog
Input
PCM
Input
PCM
Output
IM
AGR
R1
AR2
FRR
AR1
EXP
CMP
AX1
FRX
AX2
AGX
TH
HPX
HPR
2466_209
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相關代理商/技術參數(shù)
參數(shù)描述
PEF24901H 制造商:未知廠家 制造商全稱:未知廠家 功能描述:?Quad ISDN Echocancellation Circuit Digital Front-End for 4B3T Line Code?
PEF24901H V2.2 制造商:Lantiq 功能描述:
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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?
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