PEF82902FV11XP Lantiq, PEF82902FV11XP Datasheet - Page 72
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PEF82902FV11XP
Manufacturer Part Number
PEF82902FV11XP
Description
Manufacturer
Lantiq
Datasheet
1.PEF82902FV11XP.pdf
(205 pages)
Specifications of PEF82902FV11XP
Lead Free Status / Rohs Status
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Performance requirements according to ETSI TS 102 080 are met, too.
1 ms frames are transmitted via the U-interface, each consisting of:
• 108 symbols: 144 bit scrambled and coded B1 + B2 + D data
• 11 symbols: Barker code for both symbol and frame synchronization (not scrambled)
• 1 symbol: Ternary maintenance symbol (not scrambled)
The 108 user data symbols are split into four equally structured groups. Each group
(27 ternary symbols, resp. 36 bits) contains the user data of two IOM
same order (8B + 8B + 2D + 8B + 8B + 2D).
Different syncwords are used for each direction:
• Downstream from LT to NT
• Upstream from NT to LT
On the NT side, the transmitted Barker code begins 60 symbols after the received Barker
code and vice versa.
D
M
+, –
Data Sheet
1
... D
8
Ternary 2B + D data of IOM
Maintenance symbol
Syncword
– + – – + – – – + + +
+ + + – – – + – – + –
®
60
-2 frames 1 ... 8
Functional Description
®
-2 frames in the
PEF 82902
2001-11-09
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