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參數(shù)資料
| 型號： | PEB2265 |
| 廠商： | SIEMENS AG |
| 元件分類： | Codec |
| 英文描述： | Two Channel Codec Filter with IOM㈢-2 Interface (IOM㈢-2 - SICOFI㈢-2) |
| 中文描述： | 雙信道編解碼器與國際移民組織㈢-2接口（移徙㈢-2 - SICOFI㈢-2） |
| 文件頁數(shù)： | 46/77頁 |
| 文件大?。?/td> | 851K |
| 代理商： | PEB2265 |
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PEB 2265
Transmission Characteristics
Semiconductor Group
46
1997-07-01
5
The proper adjustment of the programmable filters (transhybrid balancing, impedance
matching, frequency-response correction) needs a complete knowledge of the
IOM-2 – SICOFI-2’s analog environment, and it is suggested to use the
QSICOS-program for calculating the propriate coefficients. 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)
= AR1 + AR2 =
0 to – 13 dB for sine-wave-, and
0 to – 11 dB for CCITT-noise-measurements
AX
3)
= AX1 + AX2 =
0 to 13 dB for sine-wave-, and
0 to 11 dB for CCITT-noise-measurements
f
= 1014 Hz; 0 dBm0; A-Law or
μ
-Law;
AGX = 0 dB, 6.02 dB, AGR = 0 dB,
6.02 dB;
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.
A 0dBm0
4
4)
)
signal is equivalent to 1.095 [1.0906] Vrms. A +3.14 [3.17] dBm0 signal is
equivalent to 1.57 Vrms which corresponds to the overload point of 2.223 V
(A-law,[
μ
-law]).
When the gain in the receive path is set at 0 dB, an 1014 Hz PCM sinewave input with
a level 0dBm0 will correspond to a voltage of 1.095 Vrms at A-Law (1,0906 V
μ
-Law) at
the analog output.
When the gain in the transmit path is set at 0 dB, an 1014Hz sine wave signal with a
voltage of 1.095 Vrms A-Law (1.0906 V
μ
-Law) will correspond to a level of 0 dBm0 at
the PCM output.
1)
)
> 20 k
;
C
L
< 20 pF; H(IM) = H(TH) = 0; H(R1) = H(FRX) = H(FRR) = 1;
1)
R
L
,
C
l
forms the load on VOUT
Consider, in a complete System,
AR = AR1 + AR2 + FRR + R1 = 0 to
13 dB (
11 dB for CCITT-noise-measurement)
Consider, in a complete System,
AX = AX1 + AX2 + FRX = 0 to 13 dB (11 dB for CCITT-noise-measurement) for A-Law,
0 to 11 dB (9 dB for CCITT-noise-measurement) for
μ
-Law
The absolute power level in decibels referred to the PCM interface levels.
2)
3)
4)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PEB2265HV1.1 | Two Channel Codec Filter with IOM㈢-2 Interface (IOM㈢-2 - SICOFI㈢-2) |
| PEB2445 | Multipoint Switching and Conferencing Unit - Attenuation MUSAC-A |
| PEB2445-N | Multipoint Switching and Conferencing Unit - Attenuation MUSAC-A |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PEB2265HV1.1 | 制造商:LANTIQ 功能描述:SP000214859_ASIC EOL310705 |
| PEB2265-HV1.1 | 制造商:Infineon Technologies AG 功能描述:Part Number Only 制造商:Siemens 功能描述:Part Number Only |
| PEB2265HV1.1D | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| PEB2266-H | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:A-Law/u-Law CODEC |
| PEB2266HV2.2 | 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 |
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