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參數(shù)資料
| 型號(hào)： | PEF2466-H |
| 元件分類： | Codec |
| 英文描述： | A-Law/u-Law CODEC |
| 中文描述： | A-Law/u-Law編解碼器 |
| 文件頁(yè)數(shù)： | 25/73頁(yè) |
| 文件大?。?/td> | 1618K |
| 代理商： | PEF2466-H |
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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(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PEF2466H V2.2 | 制造商:Lantiq 功能描述:Codec and Filter 64-Pin MQFP |
| PEF2466HV2.2 | 功能描述:接口—CODEC POTS RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉(zhuǎn)換速率:48 kSPs 接口類型:I2C ADC 數(shù)量:2 DAC 數(shù)量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel |
| PEF2466HV2.2/TR | 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel |
| PEF24901 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:ISDN LINE INTERFACE|BASIC|CMOS|QFP|64PIN|PLASTIC |
| 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? |
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