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參數(shù)資料
| 型號(hào)： | PBL38773/1ML |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 元件分類： | 模擬傳輸電路 |
| 英文描述： | TELECOM-SLIC, PQCC32 |
| 封裝： | PLASTIC, VQFN-32 |
| 文件頁數(shù)： | 48/64頁 |
| 文件大?。?/td> | 1052K |
| 代理商： | PBL38773/1ML |
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Ringing FlexiSLIC
PBL 38773/1
Maximum Loop Length
Data Sheet
52
DS1, 2003-06-18
Where:
Example:
V
BAT = -80 V, ZBellmin = 5 REN = 1300 , αmin = αmax= 0%, ROffh= 400, RF = 40 ,
R
LMIN = 0 VRDCT-R = 0, This will give: RL = 417 .
I
LTHpeak.
is the line peak current
40
Is the resistance of the SLICs internal resistors connected in series with
output amplifiers (see Figure 13).
R
RT
Is the resistor value of the resistor connected between the PRT-pin and
GND.
V
BAT
Is the voltage at the VBAT pin.
α
min,αmax
Is the variation of the battery. 2% will give an
α
max = 1.02 and -2% will
give a
α
min = 0.98.
Z
Bellmin
Is the minimum resistance of the bell in on-hook. Typical 1400
for
5REN.
R
F
Is the resistance of one fuse resistor.
R
Lmin
is the minimum resistance of the loop lenght
R
Offh
is the resistance of the phone in off hook, typical 400
.
VR
DCT-R
Is the DC voltage difference between the Tip and Ring wire.
0.66
is the tolerance of the ringtrip detector with an included margin.
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