參數(shù)資料
型號: T9000
廠商: Lineage Power
英文描述: ISDN Network Termination Node (NTN) Device(ISDN網(wǎng)絡終端節(jié)點器件)
中文描述: ISDN網(wǎng)絡終端節(jié)點(新界西)設備(ISDN網(wǎng)網(wǎng)絡終端節(jié)點器件)
文件頁數(shù): 113/126頁
文件大?。?/td> 1523K
代理商: T9000
Lucent Technologies Inc.
113
Advance Data Sheet
April 2000
ISDN Network Termination Node (NTN) Device
T9000
21 Crystal Characteristics
Table 122. Fundamental Mode Crystal Characteristics
These are the characteristics of a parallel resonant crystal for meeting the
±
100 ppm requirements of T1.601 for
NT operation. The parasitic capacitance of the PC board to which the T9000 crystal is mounted must be kept within
the range of 0.6 pF
±
0.4 pF.
Table 123. Internal PLL Characteristics
* Set by digital PLL; therefore, variations track MTC (LT mode) or U-interface line rate (NT mode).
Parameter
Symbol
F
O
TOL
Test Conditions
With 25.0 pF of loading
Specifications
15.36
±
70
Unit
MHz
ppm
Center Frequency
Tolerance Including Calibration, Tempera-
ture Stability, and Aging
Drive Level
Series Resistance
Shunt Capacitance
Motional Capacitance
DL
R
S
C
O
C
M
Maximum
Maximum
0.5
20
mW
pF
fF
3.0
±
20%
12
±
20%
Parameter
Test Conditions
–3 dB point (LT)
–3 dB point (NT), 18 kft 26 AWG
at 0.15 Hz typical (LT)
at 1.5 Hz typical (NT)
Min
±
250
Typ
0.45*
5*
0.4*
1.0*
Max
Unit
ppm
Hz
Hz
dB
dB
Total Pull Range
Jitter Transfer Function
Jitter Peaking
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