peb2255 Infineon Technologies Corporation, peb2255 Datasheet - Page 102

• Manufacturer Part Number: peb2255
• Description: E1/t1/j1 Framer And Line Interface Component For Long And Short Haul Applications
• Manufacturer: Infineon Technologies Corporation

5
5.1
Figure 31
Receive Line Interface (T1/J1)
For data input, three different data types are supported:
• Ternary coded signals received at multifunction ports RL1 and RL2 from a -10 dB
• Digital dual rail signals received on ports RDIP and RDIN. The dual rail interface is
• Unipolar data on port ROID received from a fiber optical interface. The optical
Data Sheet
RL2 / RDIN / RCLKI
RL1 / RDIP / ROID
(short haul, LIM0.EQON = 0) or -36 dB (long haul, LIM0.EQON = 1) ternary interface.
The ternary interface is selected if LIM1.DRS is reset.
selected if LIM1.DRS and FMR0.RC1 is set.
interface is selected if LIM1.DRS is set and FMR0.RC1...0 = 00.
Alternatively the optical interface can be switched to pin 68 (XMFB/XOID) and pin 80
(ROID) by setting bit LOOP.SPN.
Functional Description T1/J1
Receive Path in T1/J1 Mode
Receive Clock System (T1/J1)
Equalizer
DCO-R
102
Detector
Analog
Osc.
LOS
PD
16.384 MHz
XTAL1
Clock & Data
Recovery
DPLL
Functional Description T1/J1
Detector
Alarm
Converter
Rate
Decoder
Line
FALC-LH V1.3
F0048
PEB 2255
RDATA
2000-07
RCLK