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參數(shù)資料
| 型號： | PEB24902 |
| 廠商： | SIEMENS A G |
| 元件分類： | 數(shù)字傳輸電路 |
| 英文描述： | Quad ISDN Echocancellation Circuit Analogue Front End Quad IEC AFE |
| 中文描述： | DATACOM, ISDN ECHO CANCELLER, PQFP64 |
| 文件頁數(shù)： | 21/50頁 |
| 文件大?。?/td> | 502K |
| 代理商： | PEB24902 |
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PEB 24902
PEF 24902
Technical Description
Semiconductor Group
21
05.96
The resonance frequency can be set to two different values using the pin PLLF. PLLF
tied to low sets the PLL to a low resonance frequency suited for applications in the
Access Network. PLLF tied to high or left open results in a higher resonance frequency
for accelerated synchronization. The PLLF pin has an internal pull-up resistor.
The PLL automatically determines whether the frequency at pin CLOCK is 8 kHz or 2048
kHz .
Table 2
PLL Characteristcs
Parameter
Limit Values
typ.
1.5
Unit
min.
1.2
max.
1.8
f
r
resonance frequency, PLLF =
low
f
r
resonance frequency, PLLF =
high
Damping factor
H
max
maximum jitter
amplification
Synchronization time of the PLL
after power on and applying the
reference at pin CLOCK, PLLF =
low
Synchronization time of the PLL
after power on and applying the
reference at pin CLOCK, PLLF =
high
Output Jitter at CL15 without
any jitter in the CLOCK signal
(peak-to-peak); jitter frequency
> 800 Hz
Output Jitter at CL15 with-out
any jitter in the CLOCK signal
(peak-to-peak) jitter frequency
< 20 Hz
Initial accuracy after the loss of
the reference clock at CLOCK
Initial accuracy after power on
Hz
7
8
9
Hz
0.7
0.9
0.9
1.45
1.2
2.2
dB
8
sec
1
sec
2
ns
80
ns
0.5
ppm
-50
50
ppm
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PEB24902/11 | 制造商:PULSE 制造商全稱:Pulse A Technitrol Company 功能描述:TELECOMMUNICATIONS PRODUCTS |
| PEB24902H | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| PEB24902-HV1.1 | 制造商:Siemens 功能描述:Part Number Only |
| PEB24902HV2.1 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| PEB24902HV21XP | 制造商:Lantiq 功能描述:ISDN U 1-Line 15.36Mbps 5V 64-Pin MQFP |
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