PEB22554 SIEMENS [Siemens Semiconductor Group], PEB22554 Datasheet - Page 6

• Manufacturer Part Number: PEB22554
• Description: ICs for Communications
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

Quad Framing and Line Interface Component for E1/T1
QFALC
QuadFALC in E1 Mode
1
Quad Line Interface
• High density, generic interface for all E1 / T1 / J1
• Quad analog receive and transmit circuitry for long/
• Data and clock recovery using an integrated
• Maximum line attenuation up to -34 dB at 1024 kHz
• Programmable transmit pulse shapes for E1 signals
• Programmable Line Build-Out according to FTZ221
• Low transmitter output impedances for high transmit return loss
• Tri-state function of the analog transmit line outputs
• Transmit line monitor protecting the device from damage
• Jitter specifications of ITU-T I.431 , G.703 , G.736 and G.823 met
• Crystal-less wander and jitter attenuation/compensation
• Low frequency reference clock: 2.048MHz
• Power down function per channel
• Dual rail or single rail digital inputs and outputs
• Unipolar NRZ or CMI for interfacing fibre optical transmission routes
• Selectable line codes (HDB3, AMI)
• Loss of signal indication with programmable thresholds according to ITU-T G.775
• Clock generator for jitter free system/ transmit clocks per channel
• Local loop and remote loop for diagnostic purposes
• Ultra low power device , single power supply: 3.3 V
Type
PEB 22554-HT
Semiconductor Group
applications
short haul applications
digital phase locked loop
adaptively controlled receive equalization network adjusts up to 4500 feet (PULP 22
AWG) in length, noise - and crosstalk -filter, line attenuation status
and ETS300233
Features E1
Version
V1.1
6
Ordering Code
Q67003H9339
P-TQFP-144
Package
P-TQFP-144(SMD)
PEB 22554
CMOS
09.98