PEB2255H-V13 Infineon Technologies, PEB2255H-V13 Datasheet - Page 295
PEB2255H-V13
Manufacturer Part Number
PEB2255H-V13
Description
IC INTERFACE LINE 80-MQFP
Manufacturer
Infineon Technologies
Datasheet
1.PEB2255H-V13.pdf
(374 pages)
Specifications of PEB2255H-V13
Applications
*
Interface
*
Voltage - Supply
*
Package / Case
80-SQFP
Mounting Type
Surface Mount
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
PEB2255H-V13
PEB2255H-V13IN
PEB2255H-V13IN
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PEB2255H-V13
Manufacturer:
Infineon Technologies
Quantity:
10 000
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Pulse Count Recovery (Read/Write)
Value after RESET: 00
PCR7…PCR0… Pulse Count Recovery
Line Interface Mode 2 (Read/Write)
Value after RESET: 00
LBO2...LBO1…
Data Sheet
LIM2
PCR
PCR7
LBO2
7
7
A LOS alarm (red alarm) is cleared if a pulse density is detected in the
received bit stream.The number of pulses M which must occur in the
predefined PCD time interval is programmable via the PCR register
and can be calculated as follows:
M = N+1 ; with 0
The time interval starts with the first detected pulse transition. With
every received pulse a counter is incremented and the actual counter
is compared with the contents of PCR register. If the pulse number is
active. In this case the next detected pulse transition starts a new time
interval. An additional Loss of Signal recovery condition may be
selected by register LIM2.LOS2...1.
Line Build-Out
In long haul applications LIM0.EQON = 1 a transmit filter can be
optionally placed on the transmit path to attenuate the data on pins
XL1/2. Selecting the transmitter attenuation is possible in steps of 7.5
dB @772kHz which is according to FCC 68 or ANSI T1. 403.
To meet the line build-out defined by ANSI T1.403 registers XPM2...0
should be programmed as follows:
00… 0 dB
01… -7.5 dB --> XPM2...0 = 20
10… -15 dB --> XPM2...0 = 20
11… -22.5 dB --> XPM2...0 = 20
LBO1
the PCR value the LOS alarm is reset otherwise the alarm stays
H
H
DJA2
DJA1
N
255.
295
SCF
H
H
, 01
, 02
H
, 01
ELT
H
H
, 8E
, 11
H
, 09
H
H
H
LOS2
FALC-LH V1.3
T1/J1 Registers
PCR0
LOS1
0
0
PEB 2255
2000-07
(37)
(38)
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