PSB21150FV14NT Infineon Technologies, PSB21150FV14NT Datasheet - Page 71
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PSB21150FV14NT
Manufacturer Part Number
PSB21150FV14NT
Description
Manufacturer
Infineon Technologies
Datasheet
1.PSB21150FV14NT.pdf
(270 pages)
Specifications of PSB21150FV14NT
Number Of Line Interfaces
1
Control Interface
HDLC
Lead Free Status / Rohs Status
Not Compliant
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3.4.1
The receive PLL performs phase tracking between the F/L transition of the receive signal
and the recovered clock. Phase adjustment is done by adding or subtracting 0.5 or 1
XTAL period to or from a 1.536-MHz clock cycle. The 1.536-MHz clock is than used to
generate any other clock synchronized to the line.
During (re)synchronization an internal reset condition may effect the 1.536-MHz clock to
have high or low times as short as 130 ns. After the S/T interface frame has achieved
the synchronized state (after three consecutive valid pairs of code violations) the FSC
output in TE mode is set to a specific phase relationship, thus causing once an irregular
FSC timing.
The phase relationships of the clocks are shown in
Figure 38
3.4.2
The timing extraction jitter of the IPAC-X conforms to ITU-T Recommendation I.430
(– 7% to + 7% of the S-interface bit period).
Data Sheet
FSC
7.68 MHz
1536 kHz *
768 kHz
Description of the Receive PLL (DPLL)
Jitter
Phase Relationships of IPAC-X Clock Signals
F-bit
* Synchronous to receive S/T. Duty Ratio 1:1 Normally
71
Figure
Description of Functional Blocks
38.
PSB/PSF 21150
2003-01-30
ITD09664
IPAC-X
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