PSB21473FV13XT Infineon Technologies, PSB21473FV13XT Datasheet - Page 349

• Manufacturer Part Number: PSB21473FV13XT
• Manufacturer: Infineon Technologies

Specifications of PSB21473FV13XT

• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (min): 3.135V
• Operating Supply Voltage (max): 3.6V
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 144
• Lead Free Status / RoHS Status: Compliant

18
18.1
Figure 2
18.2
Burst Frame
Figure 18-1 demonstrates the general principles of the line interface communication
scheme. A frame transmitted by the exchange (LT) is received by the terminal equipment
(TE) after a line propagation delay. The terminal equipment waits the minimum guard
time (t
exchange will begin a transmission every 250 s (known as the burst repetition period).
Within a burst, the data rate is 384 kbit/s.
One frame contains the framing bit (F) and the user channels (2B + D). It can readily be
seen that in the 250- s burst repetition period, 4 D-bits, 16 B1-bits and 16 B2-bits are
transferred in each direction. This gives an effective full duplex data rate of 16 kbit/s for
the D-channel and 64 kbit/s for each B-channel.
AMI-coding is used for the line interface. Logical ‘0s’ correspond to a neutral level, logical
‘1s’ are coded as alternating positive and negative pulses (i.e. with a 100 % pulse width).
Data Sheet
TE
g
DASL
= 15.625 s) while the line clears. It then transmits a frame to the exchange. The
Line Transceiver
Wiring Configurations
Line Coding, Frame Structure of the DASL interfacee
Wiring Configurations forDASL Interface
TR
loop length
349
TR: Terminating Resistor
TR
DASL
LT-S
Point-to-Point
Configurations
Line Transceiver
macro_11
PSB 21473
2003-03-31
INCA-D