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參數(shù)資料
| 型號： | PEB2466-HV1.2 |
| 廠商： | SIEMENS A G |
| 元件分類： | 編解碼器 |
| 英文描述： | Four Channel Codec Filter with PCM- and m-Controller Interface SICOFI4-mC |
| 中文描述： | A/MU-LAW, PCM CODEC, PQFP64 |
| 文件頁數(shù)： | 55/82頁 |
| 文件大?。?/td> | 3330K |
| 代理商： | PEB2466-HV1.2 |
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PEB 2466
Transmission Characteristics
Semiconductor Group
55
02.97
4
The figures in this specification are based on the subscriber-line board requirements.
The proper adjustment of the programmable filters (transhybrid balancing, impedance
matching, frequency-response correction) requires a complete knowledge of the
μ
C-SICOFI-4’s analog environment. Unless otherwise stated, the transmission
characteristics are guaranteed within the test conditions.
Transmission Characteristics
Test Conditions
T
A
= 0 °C to 70 °C;
V
DD
= 5 V
±
5%; GNDA1..4 = GNDD = 0 V
R
L
HPR and HPX enabled;
AR
2)
= 0 to – 9 dB
AX
3)
= 0 to 9 dB for A-Law, 0 to 7 dB for
μ
-Law
f
= 1014 Hz; 0 dBm0; A-Law or
μ
-Law;
AGX = 0 dB, 6.02 dB, AGR = 0 dB, – 6.02dB;
1)
> 300
;
C
L
< 50 pF; H(IM) = H(TH) = 0; H(R1) = H(FRX) = H(FRR) = 1;
A-Law
A 0 dBm0
signal is equivalent to 1.095 Vrms. A + 3.14 dBm0 signal is equivalent to
1.57 Vrms which corresponds to the overload point of 2.223 V.
When the gain in the receive path is set at 0 dB, an 1014 Hz PCM sinewave input with
a level 0 dBm0 will correspond to a voltage of 1.095 Vrms at the analog output.
When the gain in the transmit path is set at 0 dB, an 1014 Hz sine wave signal with a
voltage of 1.095Vrms A-Law will correspond to a level of 0 dBm0 at the PCM output.
μ
-Law
In transmit direction for
μ
-law an additional gain of 1.94 dB is implemented automatically,
in the companding block (CMP). This additional gain has to be considered at all gain
calculations, and reduces possible AX-gain from 9 dB (with A-Law) to 7 dB (with
μ
-Law)
A 0 dBm0
4)
signal is equivalent to 1.0906 Vrms. A + 3.17 dBm0 signal is equivalent to
1.57 Vrms which corresponds to the overload point of 2.223 V.
When the gain in the receive path is set at 0 dB, an 1014 Hz PCM sinewave input with
a level 0 dBm0 will correspond to a voltage of 1.0906 Vrms at the analog output.
When the gain in the transmit path is set at 0 dB, an 1014 Hz sine wave signal with a
voltage of 1.0906 Vrms will correspond to a level of 1.94 dBm0 at the PCM output.
1)
R
,
C
forms the load on VOUT
2)
Consider, in a complete system, AR = AR1 + AR2 + FRR + R1
3)
Consider, in a complete system, AX = AX1 + AX2 + FRX
4)
The absolute power level in decibels referred to (a point of zero relative level) the PCM interface levels.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| PEB2466HV2.2 | 功能描述:接口—CODEC POTS RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel |
| PEB2466-HV2.2 | 制造商:Infineon Technologies AG 功能描述:PCM CODEC, Quad, 64 Pin, Plastic, QFP |
| PEB2466HV2.2/TR | 制造商:Lantiq 功能描述: |
| PEB2466HV2.2TR | 制造商:Rochester Electronics LLC 功能描述: 制造商:Infineon Technologies AG 功能描述: |
| PEB2466HV22XP | 制造商:Lantiq 功能描述:ICS FOR COMMUNICATIONS |
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