PEB 2091
PEF 2091
Functional Description
3.7.3
NT-PBX
512 kHz
CLS
15.36 MHz
8 kHz
PLL
(Reference Clock)
512-4096
kHz
CLS XIN XOUT
U
U
XIN
FSC
DCL
%
Interface
Interface
FSC
DCL
NT-PBX
LT
LT
1
1
512 kHz
U
U
CLS
XIN
FSC
DCL
Interface
Interface
FSC
DCL
NT-PBX
2
2
512 kHz
U
U
CLS
XIN
Interface
Interface
FSC
DCL
FSC
DCL
NT-PBX
LT
8
8
Synchr.
Synchr.
(Downstream)
(Downstream)
Figure 34
Clock Generation in NT-PBX Mode
In NT-PBX mode IOM®-2 clock signals are not issued by the device but need to be
generated externally. In order to ensure synchronous timing to the PTT-master clock, a
PLL is used for generation of FSC and DCL (supplied to NT-PBX and LT devices) as well
as of the 15.36-MHz system clock (LT only).
Semiconductor Group
86
Data Sheet 01.99
INFINEON [ Infineon ]
