DS2181AQ+ Maxim Integrated Products, DS2181AQ+ Datasheet - Page 13

• Manufacturer Part Number: DS2181AQ+
• Description: IC TXRX CEPT PRIMARY RATE 44PLCC
• Manufacturer: Maxim Integrated Products
• Type: Transceiverr

Specifications of DS2181AQ+

• Number Of Drivers/receivers: 1/1
• Protocol: CEPT
• Voltage - Supply: 4.5 V ~ 5.5 V
• Mounting Type: Surface Mount
• Package / Case: 44-LCC, 44-PLCC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TSD INPUT TIMING Figure 7
CAS OUTPUT FORMAT IN TIMESLOT 16 Figure 8
NOTE:
1. Timeslot 16 of frame 0 is reserved for the multiframe alignment word (0000), distant multiframe
TINR: TRANSMIT INTERNATIONAL AND NATIONAL REGISTER Figure 9
(MSB)
TRANSMIT INTERNATIONAL AND NATIONAL DATA
Bit 1 of timeslot 0 in all frames is known as the international bit. When TCR.4 = 1, the transmitted
international bit is sourced from TINR.7. When TCR.4 = 0, the transmitted international bit is sampled at
TIND during the first bit period of each frame. The international bit positions in all outgoing frames
except 13 and 15 are replaced by CRC4 code words and the CRC4 multiframe alignment signal when
CCR.3 = 1.
SYMBOL
0000XYXX
FRAME 0
alarm (Y) and extra bits (X-XX).
INB
TRA
NB4
NB5
NB6
NB7
NB8
INB
-
1
-
POSITION
TINR.7
TINR.6
TINR.5
TINR.4
TINR.3
TINR.2
TINR.1
TINR.0
Timeslot 1
ABCD for
TRA
FRAME 1
NAME AND DESCRIPTION
International Bit. Inserted into the outgoing data stream when
TCR.4 = 1.
Reserved; must be 0 for proper operation.
Transmit Remote Alarm
0 = Normal operation; bit 3 of timeslot 0 in non-alignment frame
clear.
1 = Alarm condition; bit 3 of timeslot 0 in non-align frames set.
Transmit National Bits. Inserted into the outgoing data stream at
TPOS and TNEG when TCR.3 = 1.
NB4
timeslot 17
ABCD for
13 of 32
NB5
Timeslot 15
ABCD for
NB6
FRAME 15
NB7
Timeslot 31
ABCD for
(LSB)
DS2181A
NB8