CEPT
CFS2914
CEPt
Clock Extr. Coil.
Adjustable Inductor
Through Hole
CFS 2914
2-12
Standard ...................................................
CFS 2914 is an adjustable inductor (clock extrac-
tor coil) for
MITEL MH89790
device.
The MH89790 has a built in clock extraction cir-
cuit, which creates a 2.048 MHz clock synchro-
nized to the received E2 signal. The free-running
frequency of the oscillator is controlled by an exter-
nal tunable inductor. The inductor should be tuned
to provide a frequency of 2.048 MHz
±
200 Hz.
Typical applications are:
•
•
•
•
PBX or computer to T1/CEPT Digital trunks.
High speed data link using T1/CEPT Digital
trunks.
TDM Multiplexers.
ISDN Voice/Data.
MECHANICAL
0.50 " MAX
3
4
1
0.50" MAX
3
2
1
0.040" DIA
0.1 x 0.1 GRID
0.375" MAX
Ground pin
0.020" DIA
0.13" MIN
HOLE PATTERN
VIEW IN MOUNTING
DIRECTION
ELECTRICAL SPECIFICATIONS
CFS2914.chp
Inductance range
DC Resistance
µH
Ohms
pF
34 - 39
6.5
2.5
nom.
nom.
94/112/12
Distributed Capacitance
ISSUE : C,
Filtran Limited
229 Colonnade Road, Nepean, Ontario, Canada. K2E 7K3
Tel : (613) 226 1626 Fax : (613) 226 7124
2-12
模拟与混合信号